OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [gcc.c] - Diff between revs 154 and 816

Go to most recent revision | Only display areas with differences | Details | Blame | View Log

Rev 154 Rev 816
/* Compiler driver program that can handle many languages.
/* Compiler driver program that can handle many languages.
   Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
   Inc.
   Inc.
 
 
This file is part of GCC.
This file is part of GCC.
 
 
GCC is free software; you can redistribute it and/or modify it under
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
Software Foundation; either version 3, or (at your option) any later
version.
version.
 
 
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.
for more details.
 
 
You should have received a copy of the GNU General Public License
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.
<http://www.gnu.org/licenses/>.
 
 
This paragraph is here to try to keep Sun CC from dying.
This paragraph is here to try to keep Sun CC from dying.
The number of chars here seems crucial!!!!  */
The number of chars here seems crucial!!!!  */
 
 
/* This program is the user interface to the C compiler and possibly to
/* This program is the user interface to the C compiler and possibly to
other compilers.  It is used because compilation is a complicated procedure
other compilers.  It is used because compilation is a complicated procedure
which involves running several programs and passing temporary files between
which involves running several programs and passing temporary files between
them, forwarding the users switches to those programs selectively,
them, forwarding the users switches to those programs selectively,
and deleting the temporary files at the end.
and deleting the temporary files at the end.
 
 
CC recognizes how to compile each input file by suffixes in the file names.
CC recognizes how to compile each input file by suffixes in the file names.
Once it knows which kind of compilation to perform, the procedure for
Once it knows which kind of compilation to perform, the procedure for
compilation is specified by a string called a "spec".  */
compilation is specified by a string called a "spec".  */
 
 
/* A Short Introduction to Adding a Command-Line Option.
/* A Short Introduction to Adding a Command-Line Option.
 
 
   Before adding a command-line option, consider if it is really
   Before adding a command-line option, consider if it is really
   necessary.  Each additional command-line option adds complexity and
   necessary.  Each additional command-line option adds complexity and
   is difficult to remove in subsequent versions.
   is difficult to remove in subsequent versions.
 
 
   In the following, consider adding the command-line argument
   In the following, consider adding the command-line argument
   `--bar'.
   `--bar'.
 
 
   1. Each command-line option is specified in the specs file.  The
   1. Each command-line option is specified in the specs file.  The
   notation is described below in the comment entitled "The Specs
   notation is described below in the comment entitled "The Specs
   Language".  Read it.
   Language".  Read it.
 
 
   2. In this file, add an entry to "option_map" equating the long
   2. In this file, add an entry to "option_map" equating the long
   `--' argument version and any shorter, single letter version.  Read
   `--' argument version and any shorter, single letter version.  Read
   the comments in the declaration of "struct option_map" for an
   the comments in the declaration of "struct option_map" for an
   explanation.  Do not omit the first `-'.
   explanation.  Do not omit the first `-'.
 
 
   3. Look in the "specs" file to determine which program or option
   3. Look in the "specs" file to determine which program or option
   list should be given the argument, e.g., "cc1_options".  Add the
   list should be given the argument, e.g., "cc1_options".  Add the
   appropriate syntax for the shorter option version to the
   appropriate syntax for the shorter option version to the
   corresponding "const char *" entry in this file.  Omit the first
   corresponding "const char *" entry in this file.  Omit the first
   `-' from the option.  For example, use `-bar', rather than `--bar'.
   `-' from the option.  For example, use `-bar', rather than `--bar'.
 
 
   4. If the argument takes an argument, e.g., `--baz argument1',
   4. If the argument takes an argument, e.g., `--baz argument1',
   modify either DEFAULT_SWITCH_TAKES_ARG or
   modify either DEFAULT_SWITCH_TAKES_ARG or
   DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h.  Omit the first `-'
   DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h.  Omit the first `-'
   from `--baz'.
   from `--baz'.
 
 
   5. Document the option in this file's display_help().  If the
   5. Document the option in this file's display_help().  If the
   option is passed to a subprogram, modify its corresponding
   option is passed to a subprogram, modify its corresponding
   function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
   function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
   instead.
   instead.
 
 
   6. Compile and test.  Make sure that your new specs file is being
   6. Compile and test.  Make sure that your new specs file is being
   read.  For example, use a debugger to investigate the value of
   read.  For example, use a debugger to investigate the value of
   "specs_file" in main().  */
   "specs_file" in main().  */
 
 
#include "config.h"
#include "config.h"
#include "system.h"
#include "system.h"
#include "coretypes.h"
#include "coretypes.h"
#include "multilib.h" /* before tm.h */
#include "multilib.h" /* before tm.h */
#include "tm.h"
#include "tm.h"
#include <signal.h>
#include <signal.h>
#if ! defined( SIGCHLD ) && defined( SIGCLD )
#if ! defined( SIGCHLD ) && defined( SIGCLD )
#  define SIGCHLD SIGCLD
#  define SIGCHLD SIGCLD
#endif
#endif
#include "xregex.h"
#include "xregex.h"
#include "obstack.h"
#include "obstack.h"
#include "intl.h"
#include "intl.h"
#include "prefix.h"
#include "prefix.h"
#include "gcc.h"
#include "gcc.h"
#include "flags.h"
#include "flags.h"
#include "opts.h"
#include "opts.h"
 
 
/* By default there is no special suffix for target executables.  */
/* By default there is no special suffix for target executables.  */
/* FIXME: when autoconf is fixed, remove the host check - dj */
/* FIXME: when autoconf is fixed, remove the host check - dj */
#if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
#if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
#define HAVE_TARGET_EXECUTABLE_SUFFIX
#define HAVE_TARGET_EXECUTABLE_SUFFIX
#endif
#endif
 
 
/* By default there is no special suffix for host executables.  */
/* By default there is no special suffix for host executables.  */
#ifdef HOST_EXECUTABLE_SUFFIX
#ifdef HOST_EXECUTABLE_SUFFIX
#define HAVE_HOST_EXECUTABLE_SUFFIX
#define HAVE_HOST_EXECUTABLE_SUFFIX
#else
#else
#define HOST_EXECUTABLE_SUFFIX ""
#define HOST_EXECUTABLE_SUFFIX ""
#endif
#endif
 
 
/* By default, the suffix for target object files is ".o".  */
/* By default, the suffix for target object files is ".o".  */
#ifdef TARGET_OBJECT_SUFFIX
#ifdef TARGET_OBJECT_SUFFIX
#define HAVE_TARGET_OBJECT_SUFFIX
#define HAVE_TARGET_OBJECT_SUFFIX
#else
#else
#define TARGET_OBJECT_SUFFIX ".o"
#define TARGET_OBJECT_SUFFIX ".o"
#endif
#endif
 
 
static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
 
 
/* Most every one is fine with LIBRARY_PATH.  For some, it conflicts.  */
/* Most every one is fine with LIBRARY_PATH.  For some, it conflicts.  */
#ifndef LIBRARY_PATH_ENV
#ifndef LIBRARY_PATH_ENV
#define LIBRARY_PATH_ENV "LIBRARY_PATH"
#define LIBRARY_PATH_ENV "LIBRARY_PATH"
#endif
#endif
 
 
#ifndef HAVE_KILL
#ifndef HAVE_KILL
#define kill(p,s) raise(s)
#define kill(p,s) raise(s)
#endif
#endif
 
 
/* If a stage of compilation returns an exit status >= 1,
/* If a stage of compilation returns an exit status >= 1,
   compilation of that file ceases.  */
   compilation of that file ceases.  */
 
 
#define MIN_FATAL_STATUS 1
#define MIN_FATAL_STATUS 1
 
 
/* Flag set by cppspec.c to 1.  */
/* Flag set by cppspec.c to 1.  */
int is_cpp_driver;
int is_cpp_driver;
 
 
/* Flag saying to pass the greatest exit code returned by a sub-process
/* Flag saying to pass the greatest exit code returned by a sub-process
   to the calling program.  */
   to the calling program.  */
static int pass_exit_codes;
static int pass_exit_codes;
 
 
/* Definition of string containing the arguments given to configure.  */
/* Definition of string containing the arguments given to configure.  */
#include "configargs.h"
#include "configargs.h"
 
 
/* Flag saying to print the directories gcc will search through looking for
/* Flag saying to print the directories gcc will search through looking for
   programs, libraries, etc.  */
   programs, libraries, etc.  */
 
 
static int print_search_dirs;
static int print_search_dirs;
 
 
/* Flag saying to print the full filename of this file
/* Flag saying to print the full filename of this file
   as found through our usual search mechanism.  */
   as found through our usual search mechanism.  */
 
 
static const char *print_file_name = NULL;
static const char *print_file_name = NULL;
 
 
/* As print_file_name, but search for executable file.  */
/* As print_file_name, but search for executable file.  */
 
 
static const char *print_prog_name = NULL;
static const char *print_prog_name = NULL;
 
 
/* Flag saying to print the relative path we'd use to
/* Flag saying to print the relative path we'd use to
   find libgcc.a given the current compiler flags.  */
   find libgcc.a given the current compiler flags.  */
 
 
static int print_multi_directory;
static int print_multi_directory;
 
 
/* Flag saying to print the relative path we'd use to
/* Flag saying to print the relative path we'd use to
   find OS libraries given the current compiler flags.  */
   find OS libraries given the current compiler flags.  */
 
 
static int print_multi_os_directory;
static int print_multi_os_directory;
 
 
/* Flag saying to print the list of subdirectories and
/* Flag saying to print the list of subdirectories and
   compiler flags used to select them in a standard form.  */
   compiler flags used to select them in a standard form.  */
 
 
static int print_multi_lib;
static int print_multi_lib;
 
 
/* Flag saying to print the command line options understood by gcc and its
/* Flag saying to print the command line options understood by gcc and its
   sub-processes.  */
   sub-processes.  */
 
 
static int print_help_list;
static int print_help_list;
 
 
/* Flag indicating whether we should print the command and arguments */
/* Flag indicating whether we should print the command and arguments */
 
 
static int verbose_flag;
static int verbose_flag;
 
 
/* Flag indicating whether we should ONLY print the command and
/* Flag indicating whether we should ONLY print the command and
   arguments (like verbose_flag) without executing the command.
   arguments (like verbose_flag) without executing the command.
   Displayed arguments are quoted so that the generated command
   Displayed arguments are quoted so that the generated command
   line is suitable for execution.  This is intended for use in
   line is suitable for execution.  This is intended for use in
   shell scripts to capture the driver-generated command line.  */
   shell scripts to capture the driver-generated command line.  */
static int verbose_only_flag;
static int verbose_only_flag;
 
 
/* Flag indicating to print target specific command line options.  */
/* Flag indicating to print target specific command line options.  */
 
 
static int target_help_flag;
static int target_help_flag;
 
 
/* Flag indicating whether we should report subprocess execution times
/* Flag indicating whether we should report subprocess execution times
   (if this is supported by the system - see pexecute.c).  */
   (if this is supported by the system - see pexecute.c).  */
 
 
static int report_times;
static int report_times;
 
 
/* Nonzero means place this string before uses of /, so that include
/* Nonzero means place this string before uses of /, so that include
   and library files can be found in an alternate location.  */
   and library files can be found in an alternate location.  */
 
 
#ifdef TARGET_SYSTEM_ROOT
#ifdef TARGET_SYSTEM_ROOT
static const char *target_system_root = TARGET_SYSTEM_ROOT;
static const char *target_system_root = TARGET_SYSTEM_ROOT;
#else
#else
static const char *target_system_root = 0;
static const char *target_system_root = 0;
#endif
#endif
 
 
/* Nonzero means pass the updated target_system_root to the compiler.  */
/* Nonzero means pass the updated target_system_root to the compiler.  */
 
 
static int target_system_root_changed;
static int target_system_root_changed;
 
 
/* Nonzero means append this string to target_system_root.  */
/* Nonzero means append this string to target_system_root.  */
 
 
static const char *target_sysroot_suffix = 0;
static const char *target_sysroot_suffix = 0;
 
 
/* Nonzero means append this string to target_system_root for headers.  */
/* Nonzero means append this string to target_system_root for headers.  */
 
 
static const char *target_sysroot_hdrs_suffix = 0;
static const char *target_sysroot_hdrs_suffix = 0;
 
 
/* Nonzero means write "temp" files in source directory
/* Nonzero means write "temp" files in source directory
   and use the source file's name in them, and don't delete them.  */
   and use the source file's name in them, and don't delete them.  */
 
 
static int save_temps_flag;
static int save_temps_flag;
 
 
/* Nonzero means pass multiple source files to the compiler at one time.  */
/* Nonzero means pass multiple source files to the compiler at one time.  */
 
 
static int combine_flag = 0;
static int combine_flag = 0;
 
 
/* Nonzero means use pipes to communicate between subprocesses.
/* Nonzero means use pipes to communicate between subprocesses.
   Overridden by either of the above two flags.  */
   Overridden by either of the above two flags.  */
 
 
static int use_pipes;
static int use_pipes;
 
 
/* The compiler version.  */
/* The compiler version.  */
 
 
static const char *compiler_version;
static const char *compiler_version;
 
 
/* The target version specified with -V */
/* The target version specified with -V */
 
 
static const char *const spec_version = DEFAULT_TARGET_VERSION;
static const char *const spec_version = DEFAULT_TARGET_VERSION;
 
 
/* The target machine specified with -b.  */
/* The target machine specified with -b.  */
 
 
static const char *spec_machine = DEFAULT_TARGET_MACHINE;
static const char *spec_machine = DEFAULT_TARGET_MACHINE;
 
 
/* Nonzero if cross-compiling.
/* Nonzero if cross-compiling.
   When -b is used, the value comes from the `specs' file.  */
   When -b is used, the value comes from the `specs' file.  */
 
 
#ifdef CROSS_COMPILE
#ifdef CROSS_COMPILE
static const char *cross_compile = "1";
static const char *cross_compile = "1";
#else
#else
static const char *cross_compile = "0";
static const char *cross_compile = "0";
#endif
#endif
 
 
#ifdef MODIFY_TARGET_NAME
#ifdef MODIFY_TARGET_NAME
 
 
/* Information on how to alter the target name based on a command-line
/* Information on how to alter the target name based on a command-line
   switch.  The only case we support now is simply appending or deleting a
   switch.  The only case we support now is simply appending or deleting a
   string to or from the end of the first part of the configuration name.  */
   string to or from the end of the first part of the configuration name.  */
 
 
static const struct modify_target
static const struct modify_target
{
{
  const char *const sw;
  const char *const sw;
  const enum add_del {ADD, DELETE} add_del;
  const enum add_del {ADD, DELETE} add_del;
  const char *const str;
  const char *const str;
}
}
modify_target[] = MODIFY_TARGET_NAME;
modify_target[] = MODIFY_TARGET_NAME;
#endif
#endif
 
 
/* The number of errors that have occurred; the link phase will not be
/* The number of errors that have occurred; the link phase will not be
   run if this is nonzero.  */
   run if this is nonzero.  */
static int error_count = 0;
static int error_count = 0;
 
 
/* Greatest exit code of sub-processes that has been encountered up to
/* Greatest exit code of sub-processes that has been encountered up to
   now.  */
   now.  */
static int greatest_status = 1;
static int greatest_status = 1;
 
 
/* This is the obstack which we use to allocate many strings.  */
/* This is the obstack which we use to allocate many strings.  */
 
 
static struct obstack obstack;
static struct obstack obstack;
 
 
/* This is the obstack to build an environment variable to pass to
/* This is the obstack to build an environment variable to pass to
   collect2 that describes all of the relevant switches of what to
   collect2 that describes all of the relevant switches of what to
   pass the compiler in building the list of pointers to constructors
   pass the compiler in building the list of pointers to constructors
   and destructors.  */
   and destructors.  */
 
 
static struct obstack collect_obstack;
static struct obstack collect_obstack;
 
 
/* Forward declaration for prototypes.  */
/* Forward declaration for prototypes.  */
struct path_prefix;
struct path_prefix;
struct prefix_list;
struct prefix_list;
 
 
static void init_spec (void);
static void init_spec (void);
static void store_arg (const char *, int, int);
static void store_arg (const char *, int, int);
static char *load_specs (const char *);
static char *load_specs (const char *);
static void read_specs (const char *, int);
static void read_specs (const char *, int);
static void set_spec (const char *, const char *);
static void set_spec (const char *, const char *);
static struct compiler *lookup_compiler (const char *, size_t, const char *);
static struct compiler *lookup_compiler (const char *, size_t, const char *);
static char *build_search_list (const struct path_prefix *, const char *,
static char *build_search_list (const struct path_prefix *, const char *,
                                bool, bool);
                                bool, bool);
static void putenv_from_prefixes (const struct path_prefix *, const char *,
static void putenv_from_prefixes (const struct path_prefix *, const char *,
                                  bool);
                                  bool);
static int access_check (const char *, int);
static int access_check (const char *, int);
static char *find_a_file (const struct path_prefix *, const char *, int, bool);
static char *find_a_file (const struct path_prefix *, const char *, int, bool);
static void add_prefix (struct path_prefix *, const char *, const char *,
static void add_prefix (struct path_prefix *, const char *, const char *,
                        int, int, int);
                        int, int, int);
static void add_sysrooted_prefix (struct path_prefix *, const char *,
static void add_sysrooted_prefix (struct path_prefix *, const char *,
                                  const char *, int, int, int);
                                  const char *, int, int, int);
static void translate_options (int *, const char *const **);
static void translate_options (int *, const char *const **);
static char *skip_whitespace (char *);
static char *skip_whitespace (char *);
static void delete_if_ordinary (const char *);
static void delete_if_ordinary (const char *);
static void delete_temp_files (void);
static void delete_temp_files (void);
static void delete_failure_queue (void);
static void delete_failure_queue (void);
static void clear_failure_queue (void);
static void clear_failure_queue (void);
static int check_live_switch (int, int);
static int check_live_switch (int, int);
static const char *handle_braces (const char *);
static const char *handle_braces (const char *);
static inline bool input_suffix_matches (const char *, const char *);
static inline bool input_suffix_matches (const char *, const char *);
static inline bool switch_matches (const char *, const char *, int);
static inline bool switch_matches (const char *, const char *, int);
static inline void mark_matching_switches (const char *, const char *, int);
static inline void mark_matching_switches (const char *, const char *, int);
static inline void process_marked_switches (void);
static inline void process_marked_switches (void);
static const char *process_brace_body (const char *, const char *, const char *, int, int);
static const char *process_brace_body (const char *, const char *, const char *, int, int);
static const struct spec_function *lookup_spec_function (const char *);
static const struct spec_function *lookup_spec_function (const char *);
static const char *eval_spec_function (const char *, const char *);
static const char *eval_spec_function (const char *, const char *);
static const char *handle_spec_function (const char *);
static const char *handle_spec_function (const char *);
static char *save_string (const char *, int);
static char *save_string (const char *, int);
static void set_collect_gcc_options (void);
static void set_collect_gcc_options (void);
static int do_spec_1 (const char *, int, const char *);
static int do_spec_1 (const char *, int, const char *);
static int do_spec_2 (const char *);
static int do_spec_2 (const char *);
static void do_option_spec (const char *, const char *);
static void do_option_spec (const char *, const char *);
static void do_self_spec (const char *);
static void do_self_spec (const char *);
static const char *find_file (const char *);
static const char *find_file (const char *);
static int is_directory (const char *, bool);
static int is_directory (const char *, bool);
static const char *validate_switches (const char *);
static const char *validate_switches (const char *);
static void validate_all_switches (void);
static void validate_all_switches (void);
static inline void validate_switches_from_spec (const char *);
static inline void validate_switches_from_spec (const char *);
static void give_switch (int, int);
static void give_switch (int, int);
static int used_arg (const char *, int);
static int used_arg (const char *, int);
static int default_arg (const char *, int);
static int default_arg (const char *, int);
static void set_multilib_dir (void);
static void set_multilib_dir (void);
static void print_multilib_info (void);
static void print_multilib_info (void);
static void perror_with_name (const char *);
static void perror_with_name (const char *);
static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
static void display_help (void);
static void display_help (void);
static void add_preprocessor_option (const char *, int);
static void add_preprocessor_option (const char *, int);
static void add_assembler_option (const char *, int);
static void add_assembler_option (const char *, int);
static void add_linker_option (const char *, int);
static void add_linker_option (const char *, int);
static void process_command (int, const char **);
static void process_command (int, const char **);
static int execute (void);
static int execute (void);
static void alloc_args (void);
static void alloc_args (void);
static void clear_args (void);
static void clear_args (void);
static void fatal_error (int);
static void fatal_error (int);
#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
static void init_gcc_specs (struct obstack *, const char *, const char *,
static void init_gcc_specs (struct obstack *, const char *, const char *,
                            const char *);
                            const char *);
#endif
#endif
#if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
#if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
static const char *convert_filename (const char *, int, int);
static const char *convert_filename (const char *, int, int);
#endif
#endif
 
 
static const char *if_exists_spec_function (int, const char **);
static const char *if_exists_spec_function (int, const char **);
static const char *if_exists_else_spec_function (int, const char **);
static const char *if_exists_else_spec_function (int, const char **);
static const char *replace_outfile_spec_function (int, const char **);
static const char *replace_outfile_spec_function (int, const char **);
static const char *version_compare_spec_function (int, const char **);
static const char *version_compare_spec_function (int, const char **);
static const char *include_spec_function (int, const char **);
static const char *include_spec_function (int, const char **);


/* The Specs Language
/* The Specs Language
 
 
Specs are strings containing lines, each of which (if not blank)
Specs are strings containing lines, each of which (if not blank)
is made up of a program name, and arguments separated by spaces.
is made up of a program name, and arguments separated by spaces.
The program name must be exact and start from root, since no path
The program name must be exact and start from root, since no path
is searched and it is unreliable to depend on the current working directory.
is searched and it is unreliable to depend on the current working directory.
Redirection of input or output is not supported; the subprograms must
Redirection of input or output is not supported; the subprograms must
accept filenames saying what files to read and write.
accept filenames saying what files to read and write.
 
 
In addition, the specs can contain %-sequences to substitute variable text
In addition, the specs can contain %-sequences to substitute variable text
or for conditional text.  Here is a table of all defined %-sequences.
or for conditional text.  Here is a table of all defined %-sequences.
Note that spaces are not generated automatically around the results of
Note that spaces are not generated automatically around the results of
expanding these sequences; therefore, you can concatenate them together
expanding these sequences; therefore, you can concatenate them together
or with constant text in a single argument.
or with constant text in a single argument.
 
 
 %%     substitute one % into the program name or argument.
 %%     substitute one % into the program name or argument.
 %i     substitute the name of the input file being processed.
 %i     substitute the name of the input file being processed.
 %b     substitute the basename of the input file being processed.
 %b     substitute the basename of the input file being processed.
        This is the substring up to (and not including) the last period
        This is the substring up to (and not including) the last period
        and not including the directory.
        and not including the directory.
 %B     same as %b, but include the file suffix (text after the last period).
 %B     same as %b, but include the file suffix (text after the last period).
 %gSUFFIX
 %gSUFFIX
        substitute a file name that has suffix SUFFIX and is chosen
        substitute a file name that has suffix SUFFIX and is chosen
        once per compilation, and mark the argument a la %d.  To reduce
        once per compilation, and mark the argument a la %d.  To reduce
        exposure to denial-of-service attacks, the file name is now
        exposure to denial-of-service attacks, the file name is now
        chosen in a way that is hard to predict even when previously
        chosen in a way that is hard to predict even when previously
        chosen file names are known.  For example, `%g.s ... %g.o ... %g.s'
        chosen file names are known.  For example, `%g.s ... %g.o ... %g.s'
        might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'.  SUFFIX matches
        might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'.  SUFFIX matches
        the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
        the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
        had been pre-processed.  Previously, %g was simply substituted
        had been pre-processed.  Previously, %g was simply substituted
        with a file name chosen once per compilation, without regard
        with a file name chosen once per compilation, without regard
        to any appended suffix (which was therefore treated just like
        to any appended suffix (which was therefore treated just like
        ordinary text), making such attacks more likely to succeed.
        ordinary text), making such attacks more likely to succeed.
 %|SUFFIX
 %|SUFFIX
        like %g, but if -pipe is in effect, expands simply to "-".
        like %g, but if -pipe is in effect, expands simply to "-".
 %mSUFFIX
 %mSUFFIX
        like %g, but if -pipe is in effect, expands to nothing.  (We have both
        like %g, but if -pipe is in effect, expands to nothing.  (We have both
        %| and %m to accommodate differences between system assemblers; see
        %| and %m to accommodate differences between system assemblers; see
        the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
        the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
 %uSUFFIX
 %uSUFFIX
        like %g, but generates a new temporary file name even if %uSUFFIX
        like %g, but generates a new temporary file name even if %uSUFFIX
        was already seen.
        was already seen.
 %USUFFIX
 %USUFFIX
        substitutes the last file name generated with %uSUFFIX, generating a
        substitutes the last file name generated with %uSUFFIX, generating a
        new one if there is no such last file name.  In the absence of any
        new one if there is no such last file name.  In the absence of any
        %uSUFFIX, this is just like %gSUFFIX, except they don't share
        %uSUFFIX, this is just like %gSUFFIX, except they don't share
        the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
        the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
        would involve the generation of two distinct file names, one
        would involve the generation of two distinct file names, one
        for each `%g.s' and another for each `%U.s'.  Previously, %U was
        for each `%g.s' and another for each `%U.s'.  Previously, %U was
        simply substituted with a file name chosen for the previous %u,
        simply substituted with a file name chosen for the previous %u,
        without regard to any appended suffix.
        without regard to any appended suffix.
 %jSUFFIX
 %jSUFFIX
        substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
        substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
        writable, and if save-temps is off; otherwise, substitute the name
        writable, and if save-temps is off; otherwise, substitute the name
        of a temporary file, just like %u.  This temporary file is not
        of a temporary file, just like %u.  This temporary file is not
        meant for communication between processes, but rather as a junk
        meant for communication between processes, but rather as a junk
        disposal mechanism.
        disposal mechanism.
 %.SUFFIX
 %.SUFFIX
        substitutes .SUFFIX for the suffixes of a matched switch's args when
        substitutes .SUFFIX for the suffixes of a matched switch's args when
        it is subsequently output with %*. SUFFIX is terminated by the next
        it is subsequently output with %*. SUFFIX is terminated by the next
        space or %.
        space or %.
 %d     marks the argument containing or following the %d as a
 %d     marks the argument containing or following the %d as a
        temporary file name, so that that file will be deleted if CC exits
        temporary file name, so that that file will be deleted if CC exits
        successfully.  Unlike %g, this contributes no text to the argument.
        successfully.  Unlike %g, this contributes no text to the argument.
 %w     marks the argument containing or following the %w as the
 %w     marks the argument containing or following the %w as the
        "output file" of this compilation.  This puts the argument
        "output file" of this compilation.  This puts the argument
        into the sequence of arguments that %o will substitute later.
        into the sequence of arguments that %o will substitute later.
 %V     indicates that this compilation produces no "output file".
 %V     indicates that this compilation produces no "output file".
 %W{...}
 %W{...}
        like %{...} but mark last argument supplied within
        like %{...} but mark last argument supplied within
        as a file to be deleted on failure.
        as a file to be deleted on failure.
 %o     substitutes the names of all the output files, with spaces
 %o     substitutes the names of all the output files, with spaces
        automatically placed around them.  You should write spaces
        automatically placed around them.  You should write spaces
        around the %o as well or the results are undefined.
        around the %o as well or the results are undefined.
        %o is for use in the specs for running the linker.
        %o is for use in the specs for running the linker.
        Input files whose names have no recognized suffix are not compiled
        Input files whose names have no recognized suffix are not compiled
        at all, but they are included among the output files, so they will
        at all, but they are included among the output files, so they will
        be linked.
        be linked.
 %O     substitutes the suffix for object files.  Note that this is
 %O     substitutes the suffix for object files.  Note that this is
        handled specially when it immediately follows %g, %u, or %U
        handled specially when it immediately follows %g, %u, or %U
        (with or without a suffix argument) because of the need for
        (with or without a suffix argument) because of the need for
        those to form complete file names.  The handling is such that
        those to form complete file names.  The handling is such that
        %O is treated exactly as if it had already been substituted,
        %O is treated exactly as if it had already been substituted,
        except that %g, %u, and %U do not currently support additional
        except that %g, %u, and %U do not currently support additional
        SUFFIX characters following %O as they would following, for
        SUFFIX characters following %O as they would following, for
        example, `.o'.
        example, `.o'.
 %I     Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
 %I     Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
        (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
        (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
        and -B options) and -imultilib as necessary.
        and -B options) and -imultilib as necessary.
 %s     current argument is the name of a library or startup file of some sort.
 %s     current argument is the name of a library or startup file of some sort.
        Search for that file in a standard list of directories
        Search for that file in a standard list of directories
        and substitute the full name found.
        and substitute the full name found.
 %eSTR  Print STR as an error message.  STR is terminated by a newline.
 %eSTR  Print STR as an error message.  STR is terminated by a newline.
        Use this when inconsistent options are detected.
        Use this when inconsistent options are detected.
 %nSTR  Print STR as a notice.  STR is terminated by a newline.
 %nSTR  Print STR as a notice.  STR is terminated by a newline.
 %x{OPTION}     Accumulate an option for %X.
 %x{OPTION}     Accumulate an option for %X.
 %X     Output the accumulated linker options specified by compilations.
 %X     Output the accumulated linker options specified by compilations.
 %Y     Output the accumulated assembler options specified by compilations.
 %Y     Output the accumulated assembler options specified by compilations.
 %Z     Output the accumulated preprocessor options specified by compilations.
 %Z     Output the accumulated preprocessor options specified by compilations.
 %a     process ASM_SPEC as a spec.
 %a     process ASM_SPEC as a spec.
        This allows config.h to specify part of the spec for running as.
        This allows config.h to specify part of the spec for running as.
 %A     process ASM_FINAL_SPEC as a spec.  A capital A is actually
 %A     process ASM_FINAL_SPEC as a spec.  A capital A is actually
        used here.  This can be used to run a post-processor after the
        used here.  This can be used to run a post-processor after the
        assembler has done its job.
        assembler has done its job.
 %D     Dump out a -L option for each directory in startfile_prefixes.
 %D     Dump out a -L option for each directory in startfile_prefixes.
        If multilib_dir is set, extra entries are generated with it affixed.
        If multilib_dir is set, extra entries are generated with it affixed.
 %l     process LINK_SPEC as a spec.
 %l     process LINK_SPEC as a spec.
 %L     process LIB_SPEC as a spec.
 %L     process LIB_SPEC as a spec.
 %G     process LIBGCC_SPEC as a spec.
 %G     process LIBGCC_SPEC as a spec.
 %R     Output the concatenation of target_system_root and
 %R     Output the concatenation of target_system_root and
        target_sysroot_suffix.
        target_sysroot_suffix.
 %S     process STARTFILE_SPEC as a spec.  A capital S is actually used here.
 %S     process STARTFILE_SPEC as a spec.  A capital S is actually used here.
 %E     process ENDFILE_SPEC as a spec.  A capital E is actually used here.
 %E     process ENDFILE_SPEC as a spec.  A capital E is actually used here.
 %C     process CPP_SPEC as a spec.
 %C     process CPP_SPEC as a spec.
 %1     process CC1_SPEC as a spec.
 %1     process CC1_SPEC as a spec.
 %2     process CC1PLUS_SPEC as a spec.
 %2     process CC1PLUS_SPEC as a spec.
 %*     substitute the variable part of a matched option.  (See below.)
 %*     substitute the variable part of a matched option.  (See below.)
        Note that each comma in the substituted string is replaced by
        Note that each comma in the substituted string is replaced by
        a single space.
        a single space.
 %<S    remove all occurrences of -S from the command line.
 %<S    remove all occurrences of -S from the command line.
        Note - this command is position dependent.  % commands in the
        Note - this command is position dependent.  % commands in the
        spec string before this one will see -S, % commands in the
        spec string before this one will see -S, % commands in the
        spec string after this one will not.
        spec string after this one will not.
 %<S*   remove all occurrences of all switches beginning with -S from the
 %<S*   remove all occurrences of all switches beginning with -S from the
        command line.
        command line.
 %:function(args)
 %:function(args)
        Call the named function FUNCTION, passing it ARGS.  ARGS is
        Call the named function FUNCTION, passing it ARGS.  ARGS is
        first processed as a nested spec string, then split into an
        first processed as a nested spec string, then split into an
        argument vector in the usual fashion.  The function returns
        argument vector in the usual fashion.  The function returns
        a string which is processed as if it had appeared literally
        a string which is processed as if it had appeared literally
        as part of the current spec.
        as part of the current spec.
 %{S}   substitutes the -S switch, if that switch was given to CC.
 %{S}   substitutes the -S switch, if that switch was given to CC.
        If that switch was not specified, this substitutes nothing.
        If that switch was not specified, this substitutes nothing.
        Here S is a metasyntactic variable.
        Here S is a metasyntactic variable.
 %{S*}  substitutes all the switches specified to CC whose names start
 %{S*}  substitutes all the switches specified to CC whose names start
        with -S.  This is used for -o, -I, etc; switches that take
        with -S.  This is used for -o, -I, etc; switches that take
        arguments.  CC considers `-o foo' as being one switch whose
        arguments.  CC considers `-o foo' as being one switch whose
        name starts with `o'.  %{o*} would substitute this text,
        name starts with `o'.  %{o*} would substitute this text,
        including the space; thus, two arguments would be generated.
        including the space; thus, two arguments would be generated.
 %{S*&T*} likewise, but preserve order of S and T options (the order
 %{S*&T*} likewise, but preserve order of S and T options (the order
        of S and T in the spec is not significant).  Can be any number
        of S and T in the spec is not significant).  Can be any number
        of ampersand-separated variables; for each the wild card is
        of ampersand-separated variables; for each the wild card is
        optional.  Useful for CPP as %{D*&U*&A*}.
        optional.  Useful for CPP as %{D*&U*&A*}.
 
 
 %{S:X}   substitutes X, if the -S switch was given to CC.
 %{S:X}   substitutes X, if the -S switch was given to CC.
 %{!S:X}  substitutes X, if the -S switch was NOT given to CC.
 %{!S:X}  substitutes X, if the -S switch was NOT given to CC.
 %{S*:X}  substitutes X if one or more switches whose names start
 %{S*:X}  substitutes X if one or more switches whose names start
          with -S was given to CC.  Normally X is substituted only
          with -S was given to CC.  Normally X is substituted only
          once, no matter how many such switches appeared.  However,
          once, no matter how many such switches appeared.  However,
          if %* appears somewhere in X, then X will be substituted
          if %* appears somewhere in X, then X will be substituted
          once for each matching switch, with the %* replaced by the
          once for each matching switch, with the %* replaced by the
          part of that switch that matched the '*'.
          part of that switch that matched the '*'.
 %{.S:X}  substitutes X, if processing a file with suffix S.
 %{.S:X}  substitutes X, if processing a file with suffix S.
 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
 
 
 %{S|T:X} substitutes X if either -S or -T was given to CC.  This may be
 %{S|T:X} substitutes X if either -S or -T was given to CC.  This may be
          combined with !, ., and * as above binding stronger than the OR.
          combined with !, ., and * as above binding stronger than the OR.
          If %* appears in X, all of the alternatives must be starred, and
          If %* appears in X, all of the alternatives must be starred, and
          only the first matching alternative is substituted.
          only the first matching alternative is substituted.
 %{S:X;   if S was given to CC, substitutes X;
 %{S:X;   if S was given to CC, substitutes X;
   T:Y;   else if T was given to CC, substitutes Y;
   T:Y;   else if T was given to CC, substitutes Y;
    :D}   else substitutes D.  There can be as many clauses as you need.
    :D}   else substitutes D.  There can be as many clauses as you need.
          This may be combined with ., !, |, and * as above.
          This may be combined with ., !, |, and * as above.
 
 
 %(Spec) processes a specification defined in a specs file as *Spec:
 %(Spec) processes a specification defined in a specs file as *Spec:
 %[Spec] as above, but put __ around -D arguments
 %[Spec] as above, but put __ around -D arguments
 
 
The conditional text X in a %{S:X} or similar construct may contain
The conditional text X in a %{S:X} or similar construct may contain
other nested % constructs or spaces, or even newlines.  They are
other nested % constructs or spaces, or even newlines.  They are
processed as usual, as described above.  Trailing white space in X is
processed as usual, as described above.  Trailing white space in X is
ignored.  White space may also appear anywhere on the left side of the
ignored.  White space may also appear anywhere on the left side of the
colon in these constructs, except between . or * and the corresponding
colon in these constructs, except between . or * and the corresponding
word.
word.
 
 
The -O, -f, -m, and -W switches are handled specifically in these
The -O, -f, -m, and -W switches are handled specifically in these
constructs.  If another value of -O or the negated form of a -f, -m, or
constructs.  If another value of -O or the negated form of a -f, -m, or
-W switch is found later in the command line, the earlier switch
-W switch is found later in the command line, the earlier switch
value is ignored, except with {S*} where S is just one letter; this
value is ignored, except with {S*} where S is just one letter; this
passes all matching options.
passes all matching options.
 
 
The character | at the beginning of the predicate text is used to indicate
The character | at the beginning of the predicate text is used to indicate
that a command should be piped to the following command, but only if -pipe
that a command should be piped to the following command, but only if -pipe
is specified.
is specified.
 
 
Note that it is built into CC which switches take arguments and which
Note that it is built into CC which switches take arguments and which
do not.  You might think it would be useful to generalize this to
do not.  You might think it would be useful to generalize this to
allow each compiler's spec to say which switches take arguments.  But
allow each compiler's spec to say which switches take arguments.  But
this cannot be done in a consistent fashion.  CC cannot even decide
this cannot be done in a consistent fashion.  CC cannot even decide
which input files have been specified without knowing which switches
which input files have been specified without knowing which switches
take arguments, and it must know which input files to compile in order
take arguments, and it must know which input files to compile in order
to tell which compilers to run.
to tell which compilers to run.
 
 
CC also knows implicitly that arguments starting in `-l' are to be
CC also knows implicitly that arguments starting in `-l' are to be
treated as compiler output files, and passed to the linker in their
treated as compiler output files, and passed to the linker in their
proper position among the other output files.  */
proper position among the other output files.  */


/* Define the macros used for specs %a, %l, %L, %S, %C, %1.  */
/* Define the macros used for specs %a, %l, %L, %S, %C, %1.  */
 
 
/* config.h can define ASM_SPEC to provide extra args to the assembler
/* config.h can define ASM_SPEC to provide extra args to the assembler
   or extra switch-translations.  */
   or extra switch-translations.  */
#ifndef ASM_SPEC
#ifndef ASM_SPEC
#define ASM_SPEC ""
#define ASM_SPEC ""
#endif
#endif
 
 
/* config.h can define ASM_FINAL_SPEC to run a post processor after
/* config.h can define ASM_FINAL_SPEC to run a post processor after
   the assembler has run.  */
   the assembler has run.  */
#ifndef ASM_FINAL_SPEC
#ifndef ASM_FINAL_SPEC
#define ASM_FINAL_SPEC ""
#define ASM_FINAL_SPEC ""
#endif
#endif
 
 
/* config.h can define CPP_SPEC to provide extra args to the C preprocessor
/* config.h can define CPP_SPEC to provide extra args to the C preprocessor
   or extra switch-translations.  */
   or extra switch-translations.  */
#ifndef CPP_SPEC
#ifndef CPP_SPEC
#define CPP_SPEC ""
#define CPP_SPEC ""
#endif
#endif
 
 
/* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
/* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
   or extra switch-translations.  */
   or extra switch-translations.  */
#ifndef CC1_SPEC
#ifndef CC1_SPEC
#define CC1_SPEC ""
#define CC1_SPEC ""
#endif
#endif
 
 
/* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
/* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
   or extra switch-translations.  */
   or extra switch-translations.  */
#ifndef CC1PLUS_SPEC
#ifndef CC1PLUS_SPEC
#define CC1PLUS_SPEC ""
#define CC1PLUS_SPEC ""
#endif
#endif
 
 
/* config.h can define LINK_SPEC to provide extra args to the linker
/* config.h can define LINK_SPEC to provide extra args to the linker
   or extra switch-translations.  */
   or extra switch-translations.  */
#ifndef LINK_SPEC
#ifndef LINK_SPEC
#define LINK_SPEC ""
#define LINK_SPEC ""
#endif
#endif
 
 
/* config.h can define LIB_SPEC to override the default libraries.  */
/* config.h can define LIB_SPEC to override the default libraries.  */
#ifndef LIB_SPEC
#ifndef LIB_SPEC
#define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
#define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
#endif
#endif
 
 
/* mudflap specs */
/* mudflap specs */
#ifndef MFWRAP_SPEC
#ifndef MFWRAP_SPEC
/* XXX: valid only for GNU ld */
/* XXX: valid only for GNU ld */
/* XXX: should exactly match hooks provided by libmudflap.a */
/* XXX: should exactly match hooks provided by libmudflap.a */
#define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
#define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
 --wrap=mmap --wrap=munmap --wrap=alloca\
 --wrap=mmap --wrap=munmap --wrap=alloca\
} %{fmudflapth: --wrap=pthread_create\
} %{fmudflapth: --wrap=pthread_create\
}} %{fmudflap|fmudflapth: --wrap=main}"
}} %{fmudflap|fmudflapth: --wrap=main}"
#endif
#endif
#ifndef MFLIB_SPEC
#ifndef MFLIB_SPEC
#define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
#define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
#endif
#endif
 
 
/* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
/* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
   included.  */
   included.  */
#ifndef LIBGCC_SPEC
#ifndef LIBGCC_SPEC
#if defined(REAL_LIBGCC_SPEC)
#if defined(REAL_LIBGCC_SPEC)
#define LIBGCC_SPEC REAL_LIBGCC_SPEC
#define LIBGCC_SPEC REAL_LIBGCC_SPEC
#elif defined(LINK_LIBGCC_SPECIAL_1)
#elif defined(LINK_LIBGCC_SPECIAL_1)
/* Have gcc do the search for libgcc.a.  */
/* Have gcc do the search for libgcc.a.  */
#define LIBGCC_SPEC "libgcc.a%s"
#define LIBGCC_SPEC "libgcc.a%s"
#else
#else
#define LIBGCC_SPEC "-lgcc"
#define LIBGCC_SPEC "-lgcc"
#endif
#endif
#endif
#endif
 
 
/* config.h can define STARTFILE_SPEC to override the default crt0 files.  */
/* config.h can define STARTFILE_SPEC to override the default crt0 files.  */
#ifndef STARTFILE_SPEC
#ifndef STARTFILE_SPEC
#define STARTFILE_SPEC  \
#define STARTFILE_SPEC  \
  "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
  "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
#endif
#endif
 
 
/* config.h can define SWITCHES_NEED_SPACES to control which options
/* config.h can define SWITCHES_NEED_SPACES to control which options
   require spaces between the option and the argument.  */
   require spaces between the option and the argument.  */
#ifndef SWITCHES_NEED_SPACES
#ifndef SWITCHES_NEED_SPACES
#define SWITCHES_NEED_SPACES ""
#define SWITCHES_NEED_SPACES ""
#endif
#endif
 
 
/* config.h can define ENDFILE_SPEC to override the default crtn files.  */
/* config.h can define ENDFILE_SPEC to override the default crtn files.  */
#ifndef ENDFILE_SPEC
#ifndef ENDFILE_SPEC
#define ENDFILE_SPEC ""
#define ENDFILE_SPEC ""
#endif
#endif
 
 
#ifndef LINKER_NAME
#ifndef LINKER_NAME
#define LINKER_NAME "collect2"
#define LINKER_NAME "collect2"
#endif
#endif
 
 
/* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
/* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
   to the assembler.  */
   to the assembler.  */
#ifndef ASM_DEBUG_SPEC
#ifndef ASM_DEBUG_SPEC
# if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
# if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
     && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
     && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
#  define ASM_DEBUG_SPEC                                        \
#  define ASM_DEBUG_SPEC                                        \
      (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG                    \
      (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG                    \
       ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}"   \
       ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}"   \
       : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
       : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
# else
# else
#  if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
#  if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
#   define ASM_DEBUG_SPEC "%{g*:--gstabs}"
#   define ASM_DEBUG_SPEC "%{g*:--gstabs}"
#  endif
#  endif
#  if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
#  if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
#   define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
#   define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
#  endif
#  endif
# endif
# endif
#endif
#endif
#ifndef ASM_DEBUG_SPEC
#ifndef ASM_DEBUG_SPEC
# define ASM_DEBUG_SPEC ""
# define ASM_DEBUG_SPEC ""
#endif
#endif
 
 
/* Here is the spec for running the linker, after compiling all files.  */
/* Here is the spec for running the linker, after compiling all files.  */
 
 
/* This is overridable by the target in case they need to specify the
/* This is overridable by the target in case they need to specify the
   -lgcc and -lc order specially, yet not require them to override all
   -lgcc and -lc order specially, yet not require them to override all
   of LINK_COMMAND_SPEC.  */
   of LINK_COMMAND_SPEC.  */
#ifndef LINK_GCC_C_SEQUENCE_SPEC
#ifndef LINK_GCC_C_SEQUENCE_SPEC
#define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
#define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
#endif
#endif
 
 
#ifndef LINK_SSP_SPEC
#ifndef LINK_SSP_SPEC
#ifdef TARGET_LIBC_PROVIDES_SSP
#ifdef TARGET_LIBC_PROVIDES_SSP
#define LINK_SSP_SPEC "%{fstack-protector:}"
#define LINK_SSP_SPEC "%{fstack-protector:}"
#else
#else
#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
#endif
#endif
#endif
#endif
 
 
#ifndef LINK_PIE_SPEC
#ifndef LINK_PIE_SPEC
#ifdef HAVE_LD_PIE
#ifdef HAVE_LD_PIE
#define LINK_PIE_SPEC "%{pie:-pie} "
#define LINK_PIE_SPEC "%{pie:-pie} "
#else
#else
#define LINK_PIE_SPEC "%{pie:} "
#define LINK_PIE_SPEC "%{pie:} "
#endif
#endif
#endif
#endif
 
 
/* -u* was put back because both BSD and SysV seem to support it.  */
/* -u* was put back because both BSD and SysV seem to support it.  */
/* %{static:} simply prevents an error message if the target machine
/* %{static:} simply prevents an error message if the target machine
   doesn't handle -static.  */
   doesn't handle -static.  */
/* We want %{T*} after %{L*} and %D so that it can be used to specify linker
/* We want %{T*} after %{L*} and %D so that it can be used to specify linker
   scripts which exist in user specified directories, or in standard
   scripts which exist in user specified directories, or in standard
   directories.  */
   directories.  */
#ifndef LINK_COMMAND_SPEC
#ifndef LINK_COMMAND_SPEC
#define LINK_COMMAND_SPEC "\
#define LINK_COMMAND_SPEC "\
%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
    %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
    %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
    %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
    %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
    %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
    %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
    %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
    %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
    %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
    %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
    %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
    %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
    %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
    %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
#endif
#endif
 
 
#ifndef LINK_LIBGCC_SPEC
#ifndef LINK_LIBGCC_SPEC
/* Generate -L options for startfile prefix list.  */
/* Generate -L options for startfile prefix list.  */
# define LINK_LIBGCC_SPEC "%D"
# define LINK_LIBGCC_SPEC "%D"
#endif
#endif
 
 
#ifndef STARTFILE_PREFIX_SPEC
#ifndef STARTFILE_PREFIX_SPEC
# define STARTFILE_PREFIX_SPEC ""
# define STARTFILE_PREFIX_SPEC ""
#endif
#endif
 
 
#ifndef SYSROOT_SPEC
#ifndef SYSROOT_SPEC
# define SYSROOT_SPEC "--sysroot=%R"
# define SYSROOT_SPEC "--sysroot=%R"
#endif
#endif
 
 
#ifndef SYSROOT_SUFFIX_SPEC
#ifndef SYSROOT_SUFFIX_SPEC
# define SYSROOT_SUFFIX_SPEC ""
# define SYSROOT_SUFFIX_SPEC ""
#endif
#endif
 
 
#ifndef SYSROOT_HEADERS_SUFFIX_SPEC
#ifndef SYSROOT_HEADERS_SUFFIX_SPEC
# define SYSROOT_HEADERS_SUFFIX_SPEC ""
# define SYSROOT_HEADERS_SUFFIX_SPEC ""
#endif
#endif
 
 
static const char *asm_debug;
static const char *asm_debug;
static const char *cpp_spec = CPP_SPEC;
static const char *cpp_spec = CPP_SPEC;
static const char *cc1_spec = CC1_SPEC;
static const char *cc1_spec = CC1_SPEC;
static const char *cc1plus_spec = CC1PLUS_SPEC;
static const char *cc1plus_spec = CC1PLUS_SPEC;
static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
static const char *link_ssp_spec = LINK_SSP_SPEC;
static const char *link_ssp_spec = LINK_SSP_SPEC;
static const char *asm_spec = ASM_SPEC;
static const char *asm_spec = ASM_SPEC;
static const char *asm_final_spec = ASM_FINAL_SPEC;
static const char *asm_final_spec = ASM_FINAL_SPEC;
static const char *link_spec = LINK_SPEC;
static const char *link_spec = LINK_SPEC;
static const char *lib_spec = LIB_SPEC;
static const char *lib_spec = LIB_SPEC;
static const char *mfwrap_spec = MFWRAP_SPEC;
static const char *mfwrap_spec = MFWRAP_SPEC;
static const char *mflib_spec = MFLIB_SPEC;
static const char *mflib_spec = MFLIB_SPEC;
static const char *link_gomp_spec = "";
static const char *link_gomp_spec = "";
static const char *libgcc_spec = LIBGCC_SPEC;
static const char *libgcc_spec = LIBGCC_SPEC;
static const char *endfile_spec = ENDFILE_SPEC;
static const char *endfile_spec = ENDFILE_SPEC;
static const char *startfile_spec = STARTFILE_SPEC;
static const char *startfile_spec = STARTFILE_SPEC;
static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
static const char *linker_name_spec = LINKER_NAME;
static const char *linker_name_spec = LINKER_NAME;
static const char *link_command_spec = LINK_COMMAND_SPEC;
static const char *link_command_spec = LINK_COMMAND_SPEC;
static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
static const char *sysroot_spec = SYSROOT_SPEC;
static const char *sysroot_spec = SYSROOT_SPEC;
static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
 
 
/* Standard options to cpp, cc1, and as, to reduce duplication in specs.
/* Standard options to cpp, cc1, and as, to reduce duplication in specs.
   There should be no need to override these in target dependent files,
   There should be no need to override these in target dependent files,
   but we need to copy them to the specs file so that newer versions
   but we need to copy them to the specs file so that newer versions
   of the GCC driver can correctly drive older tool chains with the
   of the GCC driver can correctly drive older tool chains with the
   appropriate -B options.  */
   appropriate -B options.  */
 
 
/* When cpplib handles traditional preprocessing, get rid of this, and
/* When cpplib handles traditional preprocessing, get rid of this, and
   call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
   call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
   that we default the front end language better.  */
   that we default the front end language better.  */
static const char *trad_capable_cpp =
static const char *trad_capable_cpp =
"cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
"cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
 
 
/* We don't wrap .d files in %W{} since a missing .d file, and
/* We don't wrap .d files in %W{} since a missing .d file, and
   therefore no dependency entry, confuses make into thinking a .o
   therefore no dependency entry, confuses make into thinking a .o
   file that happens to exist is up-to-date.  */
   file that happens to exist is up-to-date.  */
static const char *cpp_unique_options =
static const char *cpp_unique_options =
"%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
"%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
 %{E|M|MM:%W{o*}}";
 %{E|M|MM:%W{o*}}";
 
 
/* This contains cpp options which are common with cc1_options and are passed
/* This contains cpp options which are common with cc1_options and are passed
   only when preprocessing only to avoid duplication.  We pass the cc1 spec
   only when preprocessing only to avoid duplication.  We pass the cc1 spec
   options to the preprocessor so that it the cc1 spec may manipulate
   options to the preprocessor so that it the cc1 spec may manipulate
   options used to set target flags.  Those special target flags settings may
   options used to set target flags.  Those special target flags settings may
   in turn cause preprocessor symbols to be defined specially.  */
   in turn cause preprocessor symbols to be defined specially.  */
static const char *cpp_options =
static const char *cpp_options =
"%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
"%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
 %{undef} %{save-temps:-fpch-preprocess}";
 %{undef} %{save-temps:-fpch-preprocess}";
 
 
/* This contains cpp options which are not passed when the preprocessor
/* This contains cpp options which are not passed when the preprocessor
   output will be used by another program.  */
   output will be used by another program.  */
static const char *cpp_debug_options = "%{d*}";
static const char *cpp_debug_options = "%{d*}";
 
 
/* NB: This is shared amongst all front-ends.  */
/* NB: This is shared amongst all front-ends.  */
static const char *cc1_options =
static const char *cc1_options =
"%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
"%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
 %{Qn:-fno-ident} %{--help:--help}\
 %{Qn:-fno-ident} %{--help:--help}\
 %{--target-help:--target-help}\
 %{--target-help:--target-help}\
 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
 %{fsyntax-only:-o %j} %{-param*}\
 %{fsyntax-only:-o %j} %{-param*}\
 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
 %{coverage:-fprofile-arcs -ftest-coverage}";
 %{coverage:-fprofile-arcs -ftest-coverage}";
 
 
static const char *asm_options =
static const char *asm_options =
"%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
"%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
 
 
static const char *invoke_as =
static const char *invoke_as =
#ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
#ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
"%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
"%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
#else
#else
"%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
"%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
#endif
#endif
 
 
/* Some compilers have limits on line lengths, and the multilib_select
/* Some compilers have limits on line lengths, and the multilib_select
   and/or multilib_matches strings can be very long, so we build them at
   and/or multilib_matches strings can be very long, so we build them at
   run time.  */
   run time.  */
static struct obstack multilib_obstack;
static struct obstack multilib_obstack;
static const char *multilib_select;
static const char *multilib_select;
static const char *multilib_matches;
static const char *multilib_matches;
static const char *multilib_defaults;
static const char *multilib_defaults;
static const char *multilib_exclusions;
static const char *multilib_exclusions;
 
 
/* Check whether a particular argument is a default argument.  */
/* Check whether a particular argument is a default argument.  */
 
 
#ifndef MULTILIB_DEFAULTS
#ifndef MULTILIB_DEFAULTS
#define MULTILIB_DEFAULTS { "" }
#define MULTILIB_DEFAULTS { "" }
#endif
#endif
 
 
static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
 
 
#ifndef DRIVER_SELF_SPECS
#ifndef DRIVER_SELF_SPECS
#define DRIVER_SELF_SPECS ""
#define DRIVER_SELF_SPECS ""
#endif
#endif
 
 
/* Adding -fopenmp should imply pthreads.  This is particularly important
/* Adding -fopenmp should imply pthreads.  This is particularly important
   for targets that use different start files and suchlike.  */
   for targets that use different start files and suchlike.  */
#ifndef GOMP_SELF_SPECS
#ifndef GOMP_SELF_SPECS
#define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
#define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
#endif
#endif
 
 
static const char *const driver_self_specs[] = {
static const char *const driver_self_specs[] = {
  DRIVER_SELF_SPECS, GOMP_SELF_SPECS
  DRIVER_SELF_SPECS, GOMP_SELF_SPECS
};
};
 
 
#ifndef OPTION_DEFAULT_SPECS
#ifndef OPTION_DEFAULT_SPECS
#define OPTION_DEFAULT_SPECS { "", "" }
#define OPTION_DEFAULT_SPECS { "", "" }
#endif
#endif
 
 
struct default_spec
struct default_spec
{
{
  const char *name;
  const char *name;
  const char *spec;
  const char *spec;
};
};
 
 
static const struct default_spec
static const struct default_spec
  option_default_specs[] = { OPTION_DEFAULT_SPECS };
  option_default_specs[] = { OPTION_DEFAULT_SPECS };
 
 
struct user_specs
struct user_specs
{
{
  struct user_specs *next;
  struct user_specs *next;
  const char *filename;
  const char *filename;
};
};
 
 
static struct user_specs *user_specs_head, *user_specs_tail;
static struct user_specs *user_specs_head, *user_specs_tail;
 
 
#ifndef SWITCH_TAKES_ARG
#ifndef SWITCH_TAKES_ARG
#define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
#define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
#endif
#endif
 
 
#ifndef WORD_SWITCH_TAKES_ARG
#ifndef WORD_SWITCH_TAKES_ARG
#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
#endif
#endif


#ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
#ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
/* This defines which switches stop a full compilation.  */
/* This defines which switches stop a full compilation.  */
#define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
#define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
  ((CHAR) == 'c' || (CHAR) == 'S')
  ((CHAR) == 'c' || (CHAR) == 'S')
 
 
#ifndef SWITCH_CURTAILS_COMPILATION
#ifndef SWITCH_CURTAILS_COMPILATION
#define SWITCH_CURTAILS_COMPILATION(CHAR) \
#define SWITCH_CURTAILS_COMPILATION(CHAR) \
  DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
  DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
#endif
#endif
#endif
#endif
 
 
/* Record the mapping from file suffixes for compilation specs.  */
/* Record the mapping from file suffixes for compilation specs.  */
 
 
struct compiler
struct compiler
{
{
  const char *suffix;           /* Use this compiler for input files
  const char *suffix;           /* Use this compiler for input files
                                   whose names end in this suffix.  */
                                   whose names end in this suffix.  */
 
 
  const char *spec;             /* To use this compiler, run this spec.  */
  const char *spec;             /* To use this compiler, run this spec.  */
 
 
  const char *cpp_spec;         /* If non-NULL, substitute this spec
  const char *cpp_spec;         /* If non-NULL, substitute this spec
                                   for `%C', rather than the usual
                                   for `%C', rather than the usual
                                   cpp_spec.  */
                                   cpp_spec.  */
  const int combinable;          /* If nonzero, compiler can deal with
  const int combinable;          /* If nonzero, compiler can deal with
                                    multiple source files at once (IMA).  */
                                    multiple source files at once (IMA).  */
  const int needs_preprocessing; /* If nonzero, source files need to
  const int needs_preprocessing; /* If nonzero, source files need to
                                    be run through a preprocessor.  */
                                    be run through a preprocessor.  */
};
};
 
 
/* Pointer to a vector of `struct compiler' that gives the spec for
/* Pointer to a vector of `struct compiler' that gives the spec for
   compiling a file, based on its suffix.
   compiling a file, based on its suffix.
   A file that does not end in any of these suffixes will be passed
   A file that does not end in any of these suffixes will be passed
   unchanged to the loader and nothing else will be done to it.
   unchanged to the loader and nothing else will be done to it.
 
 
   An entry containing two 0s is used to terminate the vector.
   An entry containing two 0s is used to terminate the vector.
 
 
   If multiple entries match a file, the last matching one is used.  */
   If multiple entries match a file, the last matching one is used.  */
 
 
static struct compiler *compilers;
static struct compiler *compilers;
 
 
/* Number of entries in `compilers', not counting the null terminator.  */
/* Number of entries in `compilers', not counting the null terminator.  */
 
 
static int n_compilers;
static int n_compilers;
 
 
/* The default list of file name suffixes and their compilation specs.  */
/* The default list of file name suffixes and their compilation specs.  */
 
 
static const struct compiler default_compilers[] =
static const struct compiler default_compilers[] =
{
{
  /* Add lists of suffixes of known languages here.  If those languages
  /* Add lists of suffixes of known languages here.  If those languages
     were not present when we built the driver, we will hit these copies
     were not present when we built the driver, we will hit these copies
     and be given a more meaningful error than "file not used since
     and be given a more meaningful error than "file not used since
     linking is not done".  */
     linking is not done".  */
  {".m",  "#Objective-C", 0, 0, 0}, {".mi",  "#Objective-C", 0, 0, 0},
  {".m",  "#Objective-C", 0, 0, 0}, {".mi",  "#Objective-C", 0, 0, 0},
  {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
  {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
  {".mii", "#Objective-C++", 0, 0, 0},
  {".mii", "#Objective-C++", 0, 0, 0},
  {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
  {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
  {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
  {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
  {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
  {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
  {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
  {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
  {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
  {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
  {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
  {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
  {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
  {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
  {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
  {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
  {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
  {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
  {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
  {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
  {".r", "#Ratfor", 0, 0, 0},
  {".r", "#Ratfor", 0, 0, 0},
  {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
  {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
  {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
  {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
  {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
  {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
  /* Next come the entries for C.  */
  /* Next come the entries for C.  */
  {".c", "@c", 0, 1, 1},
  {".c", "@c", 0, 1, 1},
  {"@c",
  {"@c",
   /* cc1 has an integrated ISO C preprocessor.  We should invoke the
   /* cc1 has an integrated ISO C preprocessor.  We should invoke the
      external preprocessor if -save-temps is given.  */
      external preprocessor if -save-temps is given.  */
     "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
     "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
      %{!E:%{!M:%{!MM:\
      %{!E:%{!M:%{!MM:\
          %{traditional|ftraditional:\
          %{traditional|ftraditional:\
%eGNU C no longer supports -traditional without -E}\
%eGNU C no longer supports -traditional without -E}\
       %{!combine:\
       %{!combine:\
          %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
          %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
                %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
                %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
                    cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
                    cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
                        %(cc1_options)}\
                        %(cc1_options)}\
          %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
          %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
                cc1 %(cpp_unique_options) %(cc1_options)}}}\
                cc1 %(cpp_unique_options) %(cc1_options)}}}\
          %{!fsyntax-only:%(invoke_as)}} \
          %{!fsyntax-only:%(invoke_as)}} \
      %{combine:\
      %{combine:\
          %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
          %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
                %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
                %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
          %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
          %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
                cc1 %(cpp_unique_options) %(cc1_options)}}\
                cc1 %(cpp_unique_options) %(cc1_options)}}\
                %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
                %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
  {"-",
  {"-",
   "%{!E:%e-E or -x required when input is from standard input}\
   "%{!E:%e-E or -x required when input is from standard input}\
    %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
    %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
  {".h", "@c-header", 0, 0, 0},
  {".h", "@c-header", 0, 0, 0},
  {"@c-header",
  {"@c-header",
   /* cc1 has an integrated ISO C preprocessor.  We should invoke the
   /* cc1 has an integrated ISO C preprocessor.  We should invoke the
      external preprocessor if -save-temps is given.  */
      external preprocessor if -save-temps is given.  */
     "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
     "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
      %{!E:%{!M:%{!MM:\
      %{!E:%{!M:%{!MM:\
          %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
          %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
                %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
                %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
                    cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
                    cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
                        %(cc1_options)\
                        %(cc1_options)\
                        -o %g.s %{!o*:--output-pch=%i.gch}\
                        -o %g.s %{!o*:--output-pch=%i.gch}\
                        %W{o*:--output-pch=%*}%V}\
                        %W{o*:--output-pch=%*}%V}\
          %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
          %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
                cc1 %(cpp_unique_options) %(cc1_options)\
                cc1 %(cpp_unique_options) %(cc1_options)\
                    -o %g.s %{!o*:--output-pch=%i.gch}\
                    -o %g.s %{!o*:--output-pch=%i.gch}\
                    %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
                    %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
  {".i", "@cpp-output", 0, 1, 0},
  {".i", "@cpp-output", 0, 1, 0},
  {"@cpp-output",
  {"@cpp-output",
   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
  {".s", "@assembler", 0, 1, 0},
  {".s", "@assembler", 0, 1, 0},
  {"@assembler",
  {"@assembler",
   "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
   "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
  {".S", "@assembler-with-cpp", 0, 1, 0},
  {".S", "@assembler-with-cpp", 0, 1, 0},
  {"@assembler-with-cpp",
  {"@assembler-with-cpp",
#ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
#ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
   "%(trad_capable_cpp) -lang-asm %(cpp_options)\
   "%(trad_capable_cpp) -lang-asm %(cpp_options)\
      %{E|M|MM:%(cpp_debug_options)}\
      %{E|M|MM:%(cpp_debug_options)}\
      %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
      %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
       as %(asm_debug) %(asm_options) %|.s %A }}}}"
       as %(asm_debug) %(asm_options) %|.s %A }}}}"
#else
#else
   "%(trad_capable_cpp) -lang-asm %(cpp_options)\
   "%(trad_capable_cpp) -lang-asm %(cpp_options)\
      %{E|M|MM:%(cpp_debug_options)}\
      %{E|M|MM:%(cpp_debug_options)}\
      %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
      %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
       as %(asm_debug) %(asm_options) %m.s %A }}}}"
       as %(asm_debug) %(asm_options) %m.s %A }}}}"
#endif
#endif
   , 0, 1, 0},
   , 0, 1, 0},
 
 
#include "specs.h"
#include "specs.h"
  /* Mark end of table.  */
  /* Mark end of table.  */
  {0, 0, 0, 0, 0}
  {0, 0, 0, 0, 0}
};
};
 
 
/* Number of elements in default_compilers, not counting the terminator.  */
/* Number of elements in default_compilers, not counting the terminator.  */
 
 
static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
 
 
/* A vector of options to give to the linker.
/* A vector of options to give to the linker.
   These options are accumulated by %x,
   These options are accumulated by %x,
   and substituted into the linker command with %X.  */
   and substituted into the linker command with %X.  */
static int n_linker_options;
static int n_linker_options;
static char **linker_options;
static char **linker_options;
 
 
/* A vector of options to give to the assembler.
/* A vector of options to give to the assembler.
   These options are accumulated by -Wa,
   These options are accumulated by -Wa,
   and substituted into the assembler command with %Y.  */
   and substituted into the assembler command with %Y.  */
static int n_assembler_options;
static int n_assembler_options;
static char **assembler_options;
static char **assembler_options;
 
 
/* A vector of options to give to the preprocessor.
/* A vector of options to give to the preprocessor.
   These options are accumulated by -Wp,
   These options are accumulated by -Wp,
   and substituted into the preprocessor command with %Z.  */
   and substituted into the preprocessor command with %Z.  */
static int n_preprocessor_options;
static int n_preprocessor_options;
static char **preprocessor_options;
static char **preprocessor_options;


/* Define how to map long options into short ones.  */
/* Define how to map long options into short ones.  */
 
 
/* This structure describes one mapping.  */
/* This structure describes one mapping.  */
struct option_map
struct option_map
{
{
  /* The long option's name.  */
  /* The long option's name.  */
  const char *const name;
  const char *const name;
  /* The equivalent short option.  */
  /* The equivalent short option.  */
  const char *const equivalent;
  const char *const equivalent;
  /* Argument info.  A string of flag chars; NULL equals no options.
  /* Argument info.  A string of flag chars; NULL equals no options.
     a => argument required.
     a => argument required.
     o => argument optional.
     o => argument optional.
     j => join argument to equivalent, making one word.
     j => join argument to equivalent, making one word.
     * => require other text after NAME as an argument.  */
     * => require other text after NAME as an argument.  */
  const char *const arg_info;
  const char *const arg_info;
};
};
 
 
/* This is the table of mappings.  Mappings are tried sequentially
/* This is the table of mappings.  Mappings are tried sequentially
   for each option encountered; the first one that matches, wins.  */
   for each option encountered; the first one that matches, wins.  */
 
 
static const struct option_map option_map[] =
static const struct option_map option_map[] =
 {
 {
   {"--all-warnings", "-Wall", 0},
   {"--all-warnings", "-Wall", 0},
   {"--ansi", "-ansi", 0},
   {"--ansi", "-ansi", 0},
   {"--assemble", "-S", 0},
   {"--assemble", "-S", 0},
   {"--assert", "-A", "a"},
   {"--assert", "-A", "a"},
   {"--classpath", "-fclasspath=", "aj"},
   {"--classpath", "-fclasspath=", "aj"},
   {"--bootclasspath", "-fbootclasspath=", "aj"},
   {"--bootclasspath", "-fbootclasspath=", "aj"},
   {"--CLASSPATH", "-fclasspath=", "aj"},
   {"--CLASSPATH", "-fclasspath=", "aj"},
   {"--combine", "-combine", 0},
   {"--combine", "-combine", 0},
   {"--comments", "-C", 0},
   {"--comments", "-C", 0},
   {"--comments-in-macros", "-CC", 0},
   {"--comments-in-macros", "-CC", 0},
   {"--compile", "-c", 0},
   {"--compile", "-c", 0},
   {"--debug", "-g", "oj"},
   {"--debug", "-g", "oj"},
   {"--define-macro", "-D", "aj"},
   {"--define-macro", "-D", "aj"},
   {"--dependencies", "-M", 0},
   {"--dependencies", "-M", 0},
   {"--dump", "-d", "a"},
   {"--dump", "-d", "a"},
   {"--dumpbase", "-dumpbase", "a"},
   {"--dumpbase", "-dumpbase", "a"},
   {"--encoding", "-fencoding=", "aj"},
   {"--encoding", "-fencoding=", "aj"},
   {"--entry", "-e", 0},
   {"--entry", "-e", 0},
   {"--extra-warnings", "-W", 0},
   {"--extra-warnings", "-W", 0},
   {"--extdirs", "-fextdirs=", "aj"},
   {"--extdirs", "-fextdirs=", "aj"},
   {"--for-assembler", "-Wa", "a"},
   {"--for-assembler", "-Wa", "a"},
   {"--for-linker", "-Xlinker", "a"},
   {"--for-linker", "-Xlinker", "a"},
   {"--force-link", "-u", "a"},
   {"--force-link", "-u", "a"},
   {"--coverage", "-coverage", 0},
   {"--coverage", "-coverage", 0},
   {"--imacros", "-imacros", "a"},
   {"--imacros", "-imacros", "a"},
   {"--include", "-include", "a"},
   {"--include", "-include", "a"},
   {"--include-barrier", "-I-", 0},
   {"--include-barrier", "-I-", 0},
   {"--include-directory", "-I", "aj"},
   {"--include-directory", "-I", "aj"},
   {"--include-directory-after", "-idirafter", "a"},
   {"--include-directory-after", "-idirafter", "a"},
   {"--include-prefix", "-iprefix", "a"},
   {"--include-prefix", "-iprefix", "a"},
   {"--include-with-prefix", "-iwithprefix", "a"},
   {"--include-with-prefix", "-iwithprefix", "a"},
   {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
   {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
   {"--include-with-prefix-after", "-iwithprefix", "a"},
   {"--include-with-prefix-after", "-iwithprefix", "a"},
   {"--language", "-x", "a"},
   {"--language", "-x", "a"},
   {"--library-directory", "-L", "a"},
   {"--library-directory", "-L", "a"},
   {"--machine", "-m", "aj"},
   {"--machine", "-m", "aj"},
   {"--machine-", "-m", "*j"},
   {"--machine-", "-m", "*j"},
   {"--no-integrated-cpp", "-no-integrated-cpp", 0},
   {"--no-integrated-cpp", "-no-integrated-cpp", 0},
   {"--no-line-commands", "-P", 0},
   {"--no-line-commands", "-P", 0},
   {"--no-precompiled-includes", "-noprecomp", 0},
   {"--no-precompiled-includes", "-noprecomp", 0},
   {"--no-standard-includes", "-nostdinc", 0},
   {"--no-standard-includes", "-nostdinc", 0},
   {"--no-standard-libraries", "-nostdlib", 0},
   {"--no-standard-libraries", "-nostdlib", 0},
   {"--no-warnings", "-w", 0},
   {"--no-warnings", "-w", 0},
   {"--optimize", "-O", "oj"},
   {"--optimize", "-O", "oj"},
   {"--output", "-o", "a"},
   {"--output", "-o", "a"},
   {"--output-class-directory", "-foutput-class-dir=", "ja"},
   {"--output-class-directory", "-foutput-class-dir=", "ja"},
   {"--param", "--param", "a"},
   {"--param", "--param", "a"},
   {"--pass-exit-codes", "-pass-exit-codes", 0},
   {"--pass-exit-codes", "-pass-exit-codes", 0},
   {"--pedantic", "-pedantic", 0},
   {"--pedantic", "-pedantic", 0},
   {"--pedantic-errors", "-pedantic-errors", 0},
   {"--pedantic-errors", "-pedantic-errors", 0},
   {"--pie", "-pie", 0},
   {"--pie", "-pie", 0},
   {"--pipe", "-pipe", 0},
   {"--pipe", "-pipe", 0},
   {"--prefix", "-B", "a"},
   {"--prefix", "-B", "a"},
   {"--preprocess", "-E", 0},
   {"--preprocess", "-E", 0},
   {"--print-search-dirs", "-print-search-dirs", 0},
   {"--print-search-dirs", "-print-search-dirs", 0},
   {"--print-file-name", "-print-file-name=", "aj"},
   {"--print-file-name", "-print-file-name=", "aj"},
   {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
   {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
   {"--print-missing-file-dependencies", "-MG", 0},
   {"--print-missing-file-dependencies", "-MG", 0},
   {"--print-multi-lib", "-print-multi-lib", 0},
   {"--print-multi-lib", "-print-multi-lib", 0},
   {"--print-multi-directory", "-print-multi-directory", 0},
   {"--print-multi-directory", "-print-multi-directory", 0},
   {"--print-multi-os-directory", "-print-multi-os-directory", 0},
   {"--print-multi-os-directory", "-print-multi-os-directory", 0},
   {"--print-prog-name", "-print-prog-name=", "aj"},
   {"--print-prog-name", "-print-prog-name=", "aj"},
   {"--profile", "-p", 0},
   {"--profile", "-p", 0},
   {"--profile-blocks", "-a", 0},
   {"--profile-blocks", "-a", 0},
   {"--quiet", "-q", 0},
   {"--quiet", "-q", 0},
   {"--resource", "-fcompile-resource=", "aj"},
   {"--resource", "-fcompile-resource=", "aj"},
   {"--save-temps", "-save-temps", 0},
   {"--save-temps", "-save-temps", 0},
   {"--shared", "-shared", 0},
   {"--shared", "-shared", 0},
   {"--silent", "-q", 0},
   {"--silent", "-q", 0},
   {"--specs", "-specs=", "aj"},
   {"--specs", "-specs=", "aj"},
   {"--static", "-static", 0},
   {"--static", "-static", 0},
   {"--std", "-std=", "aj"},
   {"--std", "-std=", "aj"},
   {"--symbolic", "-symbolic", 0},
   {"--symbolic", "-symbolic", 0},
   {"--sysroot", "--sysroot=", "aj"},
   {"--sysroot", "--sysroot=", "aj"},
   {"--time", "-time", 0},
   {"--time", "-time", 0},
   {"--trace-includes", "-H", 0},
   {"--trace-includes", "-H", 0},
   {"--traditional", "-traditional", 0},
   {"--traditional", "-traditional", 0},
   {"--traditional-cpp", "-traditional-cpp", 0},
   {"--traditional-cpp", "-traditional-cpp", 0},
   {"--trigraphs", "-trigraphs", 0},
   {"--trigraphs", "-trigraphs", 0},
   {"--undefine-macro", "-U", "aj"},
   {"--undefine-macro", "-U", "aj"},
   {"--user-dependencies", "-MM", 0},
   {"--user-dependencies", "-MM", 0},
   {"--verbose", "-v", 0},
   {"--verbose", "-v", 0},
   {"--warn-", "-W", "*j"},
   {"--warn-", "-W", "*j"},
   {"--write-dependencies", "-MD", 0},
   {"--write-dependencies", "-MD", 0},
   {"--write-user-dependencies", "-MMD", 0},
   {"--write-user-dependencies", "-MMD", 0},
   {"--", "-f", "*j"}
   {"--", "-f", "*j"}
 };
 };


 
 
#ifdef TARGET_OPTION_TRANSLATE_TABLE
#ifdef TARGET_OPTION_TRANSLATE_TABLE
static const struct {
static const struct {
  const char *const option_found;
  const char *const option_found;
  const char *const replacements;
  const char *const replacements;
} target_option_translations[] =
} target_option_translations[] =
{
{
  TARGET_OPTION_TRANSLATE_TABLE,
  TARGET_OPTION_TRANSLATE_TABLE,
  { 0, 0 }
  { 0, 0 }
};
};
#endif
#endif
 
 
/* Translate the options described by *ARGCP and *ARGVP.
/* Translate the options described by *ARGCP and *ARGVP.
   Make a new vector and store it back in *ARGVP,
   Make a new vector and store it back in *ARGVP,
   and store its length in *ARGVC.  */
   and store its length in *ARGVC.  */
 
 
static void
static void
translate_options (int *argcp, const char *const **argvp)
translate_options (int *argcp, const char *const **argvp)
{
{
  int i;
  int i;
  int argc = *argcp;
  int argc = *argcp;
  const char *const *argv = *argvp;
  const char *const *argv = *argvp;
  int newvsize = (argc + 2) * 2 * sizeof (const char *);
  int newvsize = (argc + 2) * 2 * sizeof (const char *);
  const char **newv = xmalloc (newvsize);
  const char **newv = xmalloc (newvsize);
  int newindex = 0;
  int newindex = 0;
 
 
  i = 0;
  i = 0;
  newv[newindex++] = argv[i++];
  newv[newindex++] = argv[i++];
 
 
  while (i < argc)
  while (i < argc)
    {
    {
#ifdef TARGET_OPTION_TRANSLATE_TABLE
#ifdef TARGET_OPTION_TRANSLATE_TABLE
      int tott_idx;
      int tott_idx;
 
 
      for (tott_idx = 0;
      for (tott_idx = 0;
           target_option_translations[tott_idx].option_found;
           target_option_translations[tott_idx].option_found;
           tott_idx++)
           tott_idx++)
        {
        {
          if (strcmp (target_option_translations[tott_idx].option_found,
          if (strcmp (target_option_translations[tott_idx].option_found,
                      argv[i]) == 0)
                      argv[i]) == 0)
            {
            {
              int spaces = 1;
              int spaces = 1;
              const char *sp;
              const char *sp;
              char *np;
              char *np;
 
 
              for (sp = target_option_translations[tott_idx].replacements;
              for (sp = target_option_translations[tott_idx].replacements;
                   *sp; sp++)
                   *sp; sp++)
                {
                {
                  if (*sp == ' ')
                  if (*sp == ' ')
                    spaces ++;
                    spaces ++;
                }
                }
 
 
              newvsize += spaces * sizeof (const char *);
              newvsize += spaces * sizeof (const char *);
              newv =  xrealloc (newv, newvsize);
              newv =  xrealloc (newv, newvsize);
 
 
              sp = target_option_translations[tott_idx].replacements;
              sp = target_option_translations[tott_idx].replacements;
              np = xstrdup (sp);
              np = xstrdup (sp);
 
 
              while (1)
              while (1)
                {
                {
                  while (*np == ' ')
                  while (*np == ' ')
                    np++;
                    np++;
                  if (*np == 0)
                  if (*np == 0)
                    break;
                    break;
                  newv[newindex++] = np;
                  newv[newindex++] = np;
                  while (*np != ' ' && *np)
                  while (*np != ' ' && *np)
                    np++;
                    np++;
                  if (*np == 0)
                  if (*np == 0)
                    break;
                    break;
                  *np++ = 0;
                  *np++ = 0;
                }
                }
 
 
              i ++;
              i ++;
              break;
              break;
            }
            }
        }
        }
      if (target_option_translations[tott_idx].option_found)
      if (target_option_translations[tott_idx].option_found)
        continue;
        continue;
#endif
#endif
 
 
      /* Translate -- options.  */
      /* Translate -- options.  */
      if (argv[i][0] == '-' && argv[i][1] == '-')
      if (argv[i][0] == '-' && argv[i][1] == '-')
        {
        {
          size_t j;
          size_t j;
          /* Find a mapping that applies to this option.  */
          /* Find a mapping that applies to this option.  */
          for (j = 0; j < ARRAY_SIZE (option_map); j++)
          for (j = 0; j < ARRAY_SIZE (option_map); j++)
            {
            {
              size_t optlen = strlen (option_map[j].name);
              size_t optlen = strlen (option_map[j].name);
              size_t arglen = strlen (argv[i]);
              size_t arglen = strlen (argv[i]);
              size_t complen = arglen > optlen ? optlen : arglen;
              size_t complen = arglen > optlen ? optlen : arglen;
              const char *arginfo = option_map[j].arg_info;
              const char *arginfo = option_map[j].arg_info;
 
 
              if (arginfo == 0)
              if (arginfo == 0)
                arginfo = "";
                arginfo = "";
 
 
              if (!strncmp (argv[i], option_map[j].name, complen))
              if (!strncmp (argv[i], option_map[j].name, complen))
                {
                {
                  const char *arg = 0;
                  const char *arg = 0;
 
 
                  if (arglen < optlen)
                  if (arglen < optlen)
                    {
                    {
                      size_t k;
                      size_t k;
                      for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
                      for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
                        if (strlen (option_map[k].name) >= arglen
                        if (strlen (option_map[k].name) >= arglen
                            && !strncmp (argv[i], option_map[k].name, arglen))
                            && !strncmp (argv[i], option_map[k].name, arglen))
                          {
                          {
                            error ("ambiguous abbreviation %s", argv[i]);
                            error ("ambiguous abbreviation %s", argv[i]);
                            break;
                            break;
                          }
                          }
 
 
                      if (k != ARRAY_SIZE (option_map))
                      if (k != ARRAY_SIZE (option_map))
                        break;
                        break;
                    }
                    }
 
 
                  if (arglen > optlen)
                  if (arglen > optlen)
                    {
                    {
                      /* If the option has an argument, accept that.  */
                      /* If the option has an argument, accept that.  */
                      if (argv[i][optlen] == '=')
                      if (argv[i][optlen] == '=')
                        arg = argv[i] + optlen + 1;
                        arg = argv[i] + optlen + 1;
 
 
                      /* If this mapping requires extra text at end of name,
                      /* If this mapping requires extra text at end of name,
                         accept that as "argument".  */
                         accept that as "argument".  */
                      else if (strchr (arginfo, '*') != 0)
                      else if (strchr (arginfo, '*') != 0)
                        arg = argv[i] + optlen;
                        arg = argv[i] + optlen;
 
 
                      /* Otherwise, extra text at end means mismatch.
                      /* Otherwise, extra text at end means mismatch.
                         Try other mappings.  */
                         Try other mappings.  */
                      else
                      else
                        continue;
                        continue;
                    }
                    }
 
 
                  else if (strchr (arginfo, '*') != 0)
                  else if (strchr (arginfo, '*') != 0)
                    {
                    {
                      error ("incomplete '%s' option", option_map[j].name);
                      error ("incomplete '%s' option", option_map[j].name);
                      break;
                      break;
                    }
                    }
 
 
                  /* Handle arguments.  */
                  /* Handle arguments.  */
                  if (strchr (arginfo, 'a') != 0)
                  if (strchr (arginfo, 'a') != 0)
                    {
                    {
                      if (arg == 0)
                      if (arg == 0)
                        {
                        {
                          if (i + 1 == argc)
                          if (i + 1 == argc)
                            {
                            {
                              error ("missing argument to '%s' option",
                              error ("missing argument to '%s' option",
                                     option_map[j].name);
                                     option_map[j].name);
                              break;
                              break;
                            }
                            }
 
 
                          arg = argv[++i];
                          arg = argv[++i];
                        }
                        }
                    }
                    }
                  else if (strchr (arginfo, '*') != 0)
                  else if (strchr (arginfo, '*') != 0)
                    ;
                    ;
                  else if (strchr (arginfo, 'o') == 0)
                  else if (strchr (arginfo, 'o') == 0)
                    {
                    {
                      if (arg != 0)
                      if (arg != 0)
                        error ("extraneous argument to '%s' option",
                        error ("extraneous argument to '%s' option",
                               option_map[j].name);
                               option_map[j].name);
                      arg = 0;
                      arg = 0;
                    }
                    }
 
 
                  /* Store the translation as one argv elt or as two.  */
                  /* Store the translation as one argv elt or as two.  */
                  if (arg != 0 && strchr (arginfo, 'j') != 0)
                  if (arg != 0 && strchr (arginfo, 'j') != 0)
                    newv[newindex++] = concat (option_map[j].equivalent, arg,
                    newv[newindex++] = concat (option_map[j].equivalent, arg,
                                               NULL);
                                               NULL);
                  else if (arg != 0)
                  else if (arg != 0)
                    {
                    {
                      newv[newindex++] = option_map[j].equivalent;
                      newv[newindex++] = option_map[j].equivalent;
                      newv[newindex++] = arg;
                      newv[newindex++] = arg;
                    }
                    }
                  else
                  else
                    newv[newindex++] = option_map[j].equivalent;
                    newv[newindex++] = option_map[j].equivalent;
 
 
                  break;
                  break;
                }
                }
            }
            }
          i++;
          i++;
        }
        }
 
 
      /* Handle old-fashioned options--just copy them through,
      /* Handle old-fashioned options--just copy them through,
         with their arguments.  */
         with their arguments.  */
      else if (argv[i][0] == '-')
      else if (argv[i][0] == '-')
        {
        {
          const char *p = argv[i] + 1;
          const char *p = argv[i] + 1;
          int c = *p;
          int c = *p;
          int nskip = 1;
          int nskip = 1;
 
 
          if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
          if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
            nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
            nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
          else if (WORD_SWITCH_TAKES_ARG (p))
          else if (WORD_SWITCH_TAKES_ARG (p))
            nskip += WORD_SWITCH_TAKES_ARG (p);
            nskip += WORD_SWITCH_TAKES_ARG (p);
          else if ((c == 'B' || c == 'b' || c == 'x')
          else if ((c == 'B' || c == 'b' || c == 'x')
                   && p[1] == 0)
                   && p[1] == 0)
            nskip += 1;
            nskip += 1;
          else if (! strcmp (p, "Xlinker"))
          else if (! strcmp (p, "Xlinker"))
            nskip += 1;
            nskip += 1;
          else if (! strcmp (p, "Xpreprocessor"))
          else if (! strcmp (p, "Xpreprocessor"))
            nskip += 1;
            nskip += 1;
          else if (! strcmp (p, "Xassembler"))
          else if (! strcmp (p, "Xassembler"))
            nskip += 1;
            nskip += 1;
 
 
          /* Watch out for an option at the end of the command line that
          /* Watch out for an option at the end of the command line that
             is missing arguments, and avoid skipping past the end of the
             is missing arguments, and avoid skipping past the end of the
             command line.  */
             command line.  */
          if (nskip + i > argc)
          if (nskip + i > argc)
            nskip = argc - i;
            nskip = argc - i;
 
 
          while (nskip > 0)
          while (nskip > 0)
            {
            {
              newv[newindex++] = argv[i++];
              newv[newindex++] = argv[i++];
              nskip--;
              nskip--;
            }
            }
        }
        }
      else
      else
        /* Ordinary operands, or +e options.  */
        /* Ordinary operands, or +e options.  */
        newv[newindex++] = argv[i++];
        newv[newindex++] = argv[i++];
    }
    }
 
 
  newv[newindex] = 0;
  newv[newindex] = 0;
 
 
  *argvp = newv;
  *argvp = newv;
  *argcp = newindex;
  *argcp = newindex;
}
}


static char *
static char *
skip_whitespace (char *p)
skip_whitespace (char *p)
{
{
  while (1)
  while (1)
    {
    {
      /* A fully-blank line is a delimiter in the SPEC file and shouldn't
      /* A fully-blank line is a delimiter in the SPEC file and shouldn't
         be considered whitespace.  */
         be considered whitespace.  */
      if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
      if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
        return p + 1;
        return p + 1;
      else if (*p == '\n' || *p == ' ' || *p == '\t')
      else if (*p == '\n' || *p == ' ' || *p == '\t')
        p++;
        p++;
      else if (*p == '#')
      else if (*p == '#')
        {
        {
          while (*p != '\n')
          while (*p != '\n')
            p++;
            p++;
          p++;
          p++;
        }
        }
      else
      else
        break;
        break;
    }
    }
 
 
  return p;
  return p;
}
}
/* Structures to keep track of prefixes to try when looking for files.  */
/* Structures to keep track of prefixes to try when looking for files.  */
 
 
struct prefix_list
struct prefix_list
{
{
  const char *prefix;         /* String to prepend to the path.  */
  const char *prefix;         /* String to prepend to the path.  */
  struct prefix_list *next;   /* Next in linked list.  */
  struct prefix_list *next;   /* Next in linked list.  */
  int require_machine_suffix; /* Don't use without machine_suffix.  */
  int require_machine_suffix; /* Don't use without machine_suffix.  */
  /* 2 means try both machine_suffix and just_machine_suffix.  */
  /* 2 means try both machine_suffix and just_machine_suffix.  */
  int priority;               /* Sort key - priority within list.  */
  int priority;               /* Sort key - priority within list.  */
  int os_multilib;            /* 1 if OS multilib scheme should be used,
  int os_multilib;            /* 1 if OS multilib scheme should be used,
                                 0 for GCC multilib scheme.  */
                                 0 for GCC multilib scheme.  */
};
};
 
 
struct path_prefix
struct path_prefix
{
{
  struct prefix_list *plist;  /* List of prefixes to try */
  struct prefix_list *plist;  /* List of prefixes to try */
  int max_len;                /* Max length of a prefix in PLIST */
  int max_len;                /* Max length of a prefix in PLIST */
  const char *name;           /* Name of this list (used in config stuff) */
  const char *name;           /* Name of this list (used in config stuff) */
};
};
 
 
/* List of prefixes to try when looking for executables.  */
/* List of prefixes to try when looking for executables.  */
 
 
static struct path_prefix exec_prefixes = { 0, 0, "exec" };
static struct path_prefix exec_prefixes = { 0, 0, "exec" };
 
 
/* List of prefixes to try when looking for startup (crt0) files.  */
/* List of prefixes to try when looking for startup (crt0) files.  */
 
 
static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
 
 
/* List of prefixes to try when looking for include files.  */
/* List of prefixes to try when looking for include files.  */
 
 
static struct path_prefix include_prefixes = { 0, 0, "include" };
static struct path_prefix include_prefixes = { 0, 0, "include" };
 
 
/* Suffix to attach to directories searched for commands.
/* Suffix to attach to directories searched for commands.
   This looks like `MACHINE/VERSION/'.  */
   This looks like `MACHINE/VERSION/'.  */
 
 
static const char *machine_suffix = 0;
static const char *machine_suffix = 0;
 
 
/* Suffix to attach to directories searched for commands.
/* Suffix to attach to directories searched for commands.
   This is just `MACHINE/'.  */
   This is just `MACHINE/'.  */
 
 
static const char *just_machine_suffix = 0;
static const char *just_machine_suffix = 0;
 
 
/* Adjusted value of GCC_EXEC_PREFIX envvar.  */
/* Adjusted value of GCC_EXEC_PREFIX envvar.  */
 
 
static const char *gcc_exec_prefix;
static const char *gcc_exec_prefix;
 
 
/* Adjusted value of standard_libexec_prefix.  */
/* Adjusted value of standard_libexec_prefix.  */
 
 
static const char *gcc_libexec_prefix;
static const char *gcc_libexec_prefix;
 
 
/* Default prefixes to attach to command names.  */
/* Default prefixes to attach to command names.  */
 
 
#ifndef STANDARD_STARTFILE_PREFIX_1
#ifndef STANDARD_STARTFILE_PREFIX_1
#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
#endif
#endif
#ifndef STANDARD_STARTFILE_PREFIX_2
#ifndef STANDARD_STARTFILE_PREFIX_2
#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
#endif
#endif
 
 
#ifdef CROSS_COMPILE  /* Don't use these prefixes for a cross compiler.  */
#ifdef CROSS_COMPILE  /* Don't use these prefixes for a cross compiler.  */
#undef MD_EXEC_PREFIX
#undef MD_EXEC_PREFIX
#undef MD_STARTFILE_PREFIX
#undef MD_STARTFILE_PREFIX
#undef MD_STARTFILE_PREFIX_1
#undef MD_STARTFILE_PREFIX_1
#endif
#endif
 
 
/* If no prefixes defined, use the null string, which will disable them.  */
/* If no prefixes defined, use the null string, which will disable them.  */
#ifndef MD_EXEC_PREFIX
#ifndef MD_EXEC_PREFIX
#define MD_EXEC_PREFIX ""
#define MD_EXEC_PREFIX ""
#endif
#endif
#ifndef MD_STARTFILE_PREFIX
#ifndef MD_STARTFILE_PREFIX
#define MD_STARTFILE_PREFIX ""
#define MD_STARTFILE_PREFIX ""
#endif
#endif
#ifndef MD_STARTFILE_PREFIX_1
#ifndef MD_STARTFILE_PREFIX_1
#define MD_STARTFILE_PREFIX_1 ""
#define MD_STARTFILE_PREFIX_1 ""
#endif
#endif
 
 
static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
static const char *md_exec_prefix = MD_EXEC_PREFIX;
static const char *md_exec_prefix = MD_EXEC_PREFIX;
 
 
static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
static const char *const standard_startfile_prefix_1
static const char *const standard_startfile_prefix_1
  = STANDARD_STARTFILE_PREFIX_1;
  = STANDARD_STARTFILE_PREFIX_1;
static const char *const standard_startfile_prefix_2
static const char *const standard_startfile_prefix_2
  = STANDARD_STARTFILE_PREFIX_2;
  = STANDARD_STARTFILE_PREFIX_2;
 
 
static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
static const char *tooldir_prefix;
static const char *tooldir_prefix;
 
 
static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
 
 
static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
 
 
/* Subdirectory to use for locating libraries.  Set by
/* Subdirectory to use for locating libraries.  Set by
   set_multilib_dir based on the compilation options.  */
   set_multilib_dir based on the compilation options.  */
 
 
static const char *multilib_dir;
static const char *multilib_dir;
 
 
/* Subdirectory to use for locating libraries in OS conventions.  Set by
/* Subdirectory to use for locating libraries in OS conventions.  Set by
   set_multilib_dir based on the compilation options.  */
   set_multilib_dir based on the compilation options.  */
 
 
static const char *multilib_os_dir;
static const char *multilib_os_dir;


/* Structure to keep track of the specs that have been defined so far.
/* Structure to keep track of the specs that have been defined so far.
   These are accessed using %(specname) or %[specname] in a compiler
   These are accessed using %(specname) or %[specname] in a compiler
   or link spec.  */
   or link spec.  */
 
 
struct spec_list
struct spec_list
{
{
                                /* The following 2 fields must be first */
                                /* The following 2 fields must be first */
                                /* to allow EXTRA_SPECS to be initialized */
                                /* to allow EXTRA_SPECS to be initialized */
  const char *name;             /* name of the spec.  */
  const char *name;             /* name of the spec.  */
  const char *ptr;              /* available ptr if no static pointer */
  const char *ptr;              /* available ptr if no static pointer */
 
 
                                /* The following fields are not initialized */
                                /* The following fields are not initialized */
                                /* by EXTRA_SPECS */
                                /* by EXTRA_SPECS */
  const char **ptr_spec;        /* pointer to the spec itself.  */
  const char **ptr_spec;        /* pointer to the spec itself.  */
  struct spec_list *next;       /* Next spec in linked list.  */
  struct spec_list *next;       /* Next spec in linked list.  */
  int name_len;                 /* length of the name */
  int name_len;                 /* length of the name */
  int alloc_p;                  /* whether string was allocated */
  int alloc_p;                  /* whether string was allocated */
};
};
 
 
#define INIT_STATIC_SPEC(NAME,PTR) \
#define INIT_STATIC_SPEC(NAME,PTR) \
{ NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
{ NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
 
 
/* List of statically defined specs.  */
/* List of statically defined specs.  */
static struct spec_list static_specs[] =
static struct spec_list static_specs[] =
{
{
  INIT_STATIC_SPEC ("asm",                      &asm_spec),
  INIT_STATIC_SPEC ("asm",                      &asm_spec),
  INIT_STATIC_SPEC ("asm_debug",                &asm_debug),
  INIT_STATIC_SPEC ("asm_debug",                &asm_debug),
  INIT_STATIC_SPEC ("asm_final",                &asm_final_spec),
  INIT_STATIC_SPEC ("asm_final",                &asm_final_spec),
  INIT_STATIC_SPEC ("asm_options",              &asm_options),
  INIT_STATIC_SPEC ("asm_options",              &asm_options),
  INIT_STATIC_SPEC ("invoke_as",                &invoke_as),
  INIT_STATIC_SPEC ("invoke_as",                &invoke_as),
  INIT_STATIC_SPEC ("cpp",                      &cpp_spec),
  INIT_STATIC_SPEC ("cpp",                      &cpp_spec),
  INIT_STATIC_SPEC ("cpp_options",              &cpp_options),
  INIT_STATIC_SPEC ("cpp_options",              &cpp_options),
  INIT_STATIC_SPEC ("cpp_debug_options",        &cpp_debug_options),
  INIT_STATIC_SPEC ("cpp_debug_options",        &cpp_debug_options),
  INIT_STATIC_SPEC ("cpp_unique_options",       &cpp_unique_options),
  INIT_STATIC_SPEC ("cpp_unique_options",       &cpp_unique_options),
  INIT_STATIC_SPEC ("trad_capable_cpp",         &trad_capable_cpp),
  INIT_STATIC_SPEC ("trad_capable_cpp",         &trad_capable_cpp),
  INIT_STATIC_SPEC ("cc1",                      &cc1_spec),
  INIT_STATIC_SPEC ("cc1",                      &cc1_spec),
  INIT_STATIC_SPEC ("cc1_options",              &cc1_options),
  INIT_STATIC_SPEC ("cc1_options",              &cc1_options),
  INIT_STATIC_SPEC ("cc1plus",                  &cc1plus_spec),
  INIT_STATIC_SPEC ("cc1plus",                  &cc1plus_spec),
  INIT_STATIC_SPEC ("link_gcc_c_sequence",      &link_gcc_c_sequence_spec),
  INIT_STATIC_SPEC ("link_gcc_c_sequence",      &link_gcc_c_sequence_spec),
  INIT_STATIC_SPEC ("link_ssp",                 &link_ssp_spec),
  INIT_STATIC_SPEC ("link_ssp",                 &link_ssp_spec),
  INIT_STATIC_SPEC ("endfile",                  &endfile_spec),
  INIT_STATIC_SPEC ("endfile",                  &endfile_spec),
  INIT_STATIC_SPEC ("link",                     &link_spec),
  INIT_STATIC_SPEC ("link",                     &link_spec),
  INIT_STATIC_SPEC ("lib",                      &lib_spec),
  INIT_STATIC_SPEC ("lib",                      &lib_spec),
  INIT_STATIC_SPEC ("mfwrap",                   &mfwrap_spec),
  INIT_STATIC_SPEC ("mfwrap",                   &mfwrap_spec),
  INIT_STATIC_SPEC ("mflib",                    &mflib_spec),
  INIT_STATIC_SPEC ("mflib",                    &mflib_spec),
  INIT_STATIC_SPEC ("link_gomp",                &link_gomp_spec),
  INIT_STATIC_SPEC ("link_gomp",                &link_gomp_spec),
  INIT_STATIC_SPEC ("libgcc",                   &libgcc_spec),
  INIT_STATIC_SPEC ("libgcc",                   &libgcc_spec),
  INIT_STATIC_SPEC ("startfile",                &startfile_spec),
  INIT_STATIC_SPEC ("startfile",                &startfile_spec),
  INIT_STATIC_SPEC ("switches_need_spaces",     &switches_need_spaces),
  INIT_STATIC_SPEC ("switches_need_spaces",     &switches_need_spaces),
  INIT_STATIC_SPEC ("cross_compile",            &cross_compile),
  INIT_STATIC_SPEC ("cross_compile",            &cross_compile),
  INIT_STATIC_SPEC ("version",                  &compiler_version),
  INIT_STATIC_SPEC ("version",                  &compiler_version),
  INIT_STATIC_SPEC ("multilib",                 &multilib_select),
  INIT_STATIC_SPEC ("multilib",                 &multilib_select),
  INIT_STATIC_SPEC ("multilib_defaults",        &multilib_defaults),
  INIT_STATIC_SPEC ("multilib_defaults",        &multilib_defaults),
  INIT_STATIC_SPEC ("multilib_extra",           &multilib_extra),
  INIT_STATIC_SPEC ("multilib_extra",           &multilib_extra),
  INIT_STATIC_SPEC ("multilib_matches",         &multilib_matches),
  INIT_STATIC_SPEC ("multilib_matches",         &multilib_matches),
  INIT_STATIC_SPEC ("multilib_exclusions",      &multilib_exclusions),
  INIT_STATIC_SPEC ("multilib_exclusions",      &multilib_exclusions),
  INIT_STATIC_SPEC ("multilib_options",         &multilib_options),
  INIT_STATIC_SPEC ("multilib_options",         &multilib_options),
  INIT_STATIC_SPEC ("linker",                   &linker_name_spec),
  INIT_STATIC_SPEC ("linker",                   &linker_name_spec),
  INIT_STATIC_SPEC ("link_libgcc",              &link_libgcc_spec),
  INIT_STATIC_SPEC ("link_libgcc",              &link_libgcc_spec),
  INIT_STATIC_SPEC ("md_exec_prefix",           &md_exec_prefix),
  INIT_STATIC_SPEC ("md_exec_prefix",           &md_exec_prefix),
  INIT_STATIC_SPEC ("md_startfile_prefix",      &md_startfile_prefix),
  INIT_STATIC_SPEC ("md_startfile_prefix",      &md_startfile_prefix),
  INIT_STATIC_SPEC ("md_startfile_prefix_1",    &md_startfile_prefix_1),
  INIT_STATIC_SPEC ("md_startfile_prefix_1",    &md_startfile_prefix_1),
  INIT_STATIC_SPEC ("startfile_prefix_spec",    &startfile_prefix_spec),
  INIT_STATIC_SPEC ("startfile_prefix_spec",    &startfile_prefix_spec),
  INIT_STATIC_SPEC ("sysroot_spec",             &sysroot_spec),
  INIT_STATIC_SPEC ("sysroot_spec",             &sysroot_spec),
  INIT_STATIC_SPEC ("sysroot_suffix_spec",      &sysroot_suffix_spec),
  INIT_STATIC_SPEC ("sysroot_suffix_spec",      &sysroot_suffix_spec),
  INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
  INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
};
};
 
 
#ifdef EXTRA_SPECS              /* additional specs needed */
#ifdef EXTRA_SPECS              /* additional specs needed */
/* Structure to keep track of just the first two args of a spec_list.
/* Structure to keep track of just the first two args of a spec_list.
   That is all that the EXTRA_SPECS macro gives us.  */
   That is all that the EXTRA_SPECS macro gives us.  */
struct spec_list_1
struct spec_list_1
{
{
  const char *const name;
  const char *const name;
  const char *const ptr;
  const char *const ptr;
};
};
 
 
static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
static struct spec_list *extra_specs = (struct spec_list *) 0;
static struct spec_list *extra_specs = (struct spec_list *) 0;
#endif
#endif
 
 
/* List of dynamically allocates specs that have been defined so far.  */
/* List of dynamically allocates specs that have been defined so far.  */
 
 
static struct spec_list *specs = (struct spec_list *) 0;
static struct spec_list *specs = (struct spec_list *) 0;


/* List of static spec functions.  */
/* List of static spec functions.  */
 
 
static const struct spec_function static_spec_functions[] =
static const struct spec_function static_spec_functions[] =
{
{
  { "if-exists",                if_exists_spec_function },
  { "if-exists",                if_exists_spec_function },
  { "if-exists-else",           if_exists_else_spec_function },
  { "if-exists-else",           if_exists_else_spec_function },
  { "replace-outfile",          replace_outfile_spec_function },
  { "replace-outfile",          replace_outfile_spec_function },
  { "version-compare",          version_compare_spec_function },
  { "version-compare",          version_compare_spec_function },
  { "include",                  include_spec_function },
  { "include",                  include_spec_function },
#ifdef EXTRA_SPEC_FUNCTIONS
#ifdef EXTRA_SPEC_FUNCTIONS
  EXTRA_SPEC_FUNCTIONS
  EXTRA_SPEC_FUNCTIONS
#endif
#endif
  { 0, 0 }
  { 0, 0 }
};
};
 
 
static int processing_spec_function;
static int processing_spec_function;


/* Add appropriate libgcc specs to OBSTACK, taking into account
/* Add appropriate libgcc specs to OBSTACK, taking into account
   various permutations of -shared-libgcc, -shared, and such.  */
   various permutations of -shared-libgcc, -shared, and such.  */
 
 
#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
 
 
#ifndef USE_LD_AS_NEEDED
#ifndef USE_LD_AS_NEEDED
#define USE_LD_AS_NEEDED 0
#define USE_LD_AS_NEEDED 0
#endif
#endif
 
 
static void
static void
init_gcc_specs (struct obstack *obstack, const char *shared_name,
init_gcc_specs (struct obstack *obstack, const char *shared_name,
                const char *static_name, const char *eh_name)
                const char *static_name, const char *eh_name)
{
{
  char *buf;
  char *buf;
 
 
  buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
  buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
                "%{!static:%{!static-libgcc:"
                "%{!static:%{!static-libgcc:"
#if USE_LD_AS_NEEDED
#if USE_LD_AS_NEEDED
                "%{!shared-libgcc:",
                "%{!shared-libgcc:",
                static_name, " --as-needed ", shared_name, " --no-as-needed"
                static_name, " --as-needed ", shared_name, " --no-as-needed"
                "}"
                "}"
                "%{shared-libgcc:",
                "%{shared-libgcc:",
                shared_name, "%{!shared: ", static_name, "}"
                shared_name, "%{!shared: ", static_name, "}"
                "}"
                "}"
#else
#else
                "%{!shared:"
                "%{!shared:"
                "%{!shared-libgcc:", static_name, " ", eh_name, "}"
                "%{!shared-libgcc:", static_name, " ", eh_name, "}"
                "%{shared-libgcc:", shared_name, " ", static_name, "}"
                "%{shared-libgcc:", shared_name, " ", static_name, "}"
                "}"
                "}"
#ifdef LINK_EH_SPEC
#ifdef LINK_EH_SPEC
                "%{shared:"
                "%{shared:"
                "%{shared-libgcc:", shared_name, "}"
                "%{shared-libgcc:", shared_name, "}"
                "%{!shared-libgcc:", static_name, "}"
                "%{!shared-libgcc:", static_name, "}"
                "}"
                "}"
#else
#else
                "%{shared:", shared_name, "}"
                "%{shared:", shared_name, "}"
#endif
#endif
#endif
#endif
                "}}", NULL);
                "}}", NULL);
 
 
  obstack_grow (obstack, buf, strlen (buf));
  obstack_grow (obstack, buf, strlen (buf));
  free (buf);
  free (buf);
}
}
#endif /* ENABLE_SHARED_LIBGCC */
#endif /* ENABLE_SHARED_LIBGCC */
 
 
/* Initialize the specs lookup routines.  */
/* Initialize the specs lookup routines.  */
 
 
static void
static void
init_spec (void)
init_spec (void)
{
{
  struct spec_list *next = (struct spec_list *) 0;
  struct spec_list *next = (struct spec_list *) 0;
  struct spec_list *sl   = (struct spec_list *) 0;
  struct spec_list *sl   = (struct spec_list *) 0;
  int i;
  int i;
 
 
  if (specs)
  if (specs)
    return;                     /* Already initialized.  */
    return;                     /* Already initialized.  */
 
 
  if (verbose_flag)
  if (verbose_flag)
    notice ("Using built-in specs.\n");
    notice ("Using built-in specs.\n");
 
 
#ifdef EXTRA_SPECS
#ifdef EXTRA_SPECS
  extra_specs = xcalloc (sizeof (struct spec_list),
  extra_specs = xcalloc (sizeof (struct spec_list),
                         ARRAY_SIZE (extra_specs_1));
                         ARRAY_SIZE (extra_specs_1));
 
 
  for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
  for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
    {
    {
      sl = &extra_specs[i];
      sl = &extra_specs[i];
      sl->name = extra_specs_1[i].name;
      sl->name = extra_specs_1[i].name;
      sl->ptr = extra_specs_1[i].ptr;
      sl->ptr = extra_specs_1[i].ptr;
      sl->next = next;
      sl->next = next;
      sl->name_len = strlen (sl->name);
      sl->name_len = strlen (sl->name);
      sl->ptr_spec = &sl->ptr;
      sl->ptr_spec = &sl->ptr;
      next = sl;
      next = sl;
    }
    }
#endif
#endif
 
 
  /* Initialize here, not in definition.  The IRIX 6 O32 cc sometimes chokes
  /* Initialize here, not in definition.  The IRIX 6 O32 cc sometimes chokes
     on ?: in file-scope variable initializations.  */
     on ?: in file-scope variable initializations.  */
  asm_debug = ASM_DEBUG_SPEC;
  asm_debug = ASM_DEBUG_SPEC;
 
 
  for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
  for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
    {
    {
      sl = &static_specs[i];
      sl = &static_specs[i];
      sl->next = next;
      sl->next = next;
      next = sl;
      next = sl;
    }
    }
 
 
#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
#if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
  /* ??? If neither -shared-libgcc nor --static-libgcc was
  /* ??? If neither -shared-libgcc nor --static-libgcc was
     seen, then we should be making an educated guess.  Some proposed
     seen, then we should be making an educated guess.  Some proposed
     heuristics for ELF include:
     heuristics for ELF include:
 
 
        (1) If "-Wl,--export-dynamic", then it's a fair bet that the
        (1) If "-Wl,--export-dynamic", then it's a fair bet that the
            program will be doing dynamic loading, which will likely
            program will be doing dynamic loading, which will likely
            need the shared libgcc.
            need the shared libgcc.
 
 
        (2) If "-ldl", then it's also a fair bet that we're doing
        (2) If "-ldl", then it's also a fair bet that we're doing
            dynamic loading.
            dynamic loading.
 
 
        (3) For each ET_DYN we're linking against (either through -lfoo
        (3) For each ET_DYN we're linking against (either through -lfoo
            or /some/path/foo.so), check to see whether it or one of
            or /some/path/foo.so), check to see whether it or one of
            its dependencies depends on a shared libgcc.
            its dependencies depends on a shared libgcc.
 
 
        (4) If "-shared"
        (4) If "-shared"
 
 
            If the runtime is fixed to look for program headers instead
            If the runtime is fixed to look for program headers instead
            of calling __register_frame_info at all, for each object,
            of calling __register_frame_info at all, for each object,
            use the shared libgcc if any EH symbol referenced.
            use the shared libgcc if any EH symbol referenced.
 
 
            If crtstuff is fixed to not invoke __register_frame_info
            If crtstuff is fixed to not invoke __register_frame_info
            automatically, for each object, use the shared libgcc if
            automatically, for each object, use the shared libgcc if
            any non-empty unwind section found.
            any non-empty unwind section found.
 
 
     Doing any of this probably requires invoking an external program to
     Doing any of this probably requires invoking an external program to
     do the actual object file scanning.  */
     do the actual object file scanning.  */
  {
  {
    const char *p = libgcc_spec;
    const char *p = libgcc_spec;
    int in_sep = 1;
    int in_sep = 1;
 
 
    /* Transform the extant libgcc_spec into one that uses the shared libgcc
    /* Transform the extant libgcc_spec into one that uses the shared libgcc
       when given the proper command line arguments.  */
       when given the proper command line arguments.  */
    while (*p)
    while (*p)
      {
      {
        if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
        if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
          {
          {
            init_gcc_specs (&obstack,
            init_gcc_specs (&obstack,
                            "-lgcc_s"
                            "-lgcc_s"
#ifdef USE_LIBUNWIND_EXCEPTIONS
#ifdef USE_LIBUNWIND_EXCEPTIONS
                            " -lunwind"
                            " -lunwind"
#endif
#endif
                            ,
                            ,
                            "-lgcc",
                            "-lgcc",
                            "-lgcc_eh"
                            "-lgcc_eh"
#ifdef USE_LIBUNWIND_EXCEPTIONS
#ifdef USE_LIBUNWIND_EXCEPTIONS
# ifdef HAVE_LD_STATIC_DYNAMIC
# ifdef HAVE_LD_STATIC_DYNAMIC
                            " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
                            " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
# else
# else
                            " -lunwind"
                            " -lunwind"
# endif
# endif
#endif
#endif
                            );
                            );
 
 
            p += 5;
            p += 5;
            in_sep = 0;
            in_sep = 0;
          }
          }
        else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
        else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
          {
          {
            /* Ug.  We don't know shared library extensions.  Hope that
            /* Ug.  We don't know shared library extensions.  Hope that
               systems that use this form don't do shared libraries.  */
               systems that use this form don't do shared libraries.  */
            init_gcc_specs (&obstack,
            init_gcc_specs (&obstack,
                            "-lgcc_s",
                            "-lgcc_s",
                            "libgcc.a%s",
                            "libgcc.a%s",
                            "libgcc_eh.a%s"
                            "libgcc_eh.a%s"
#ifdef USE_LIBUNWIND_EXCEPTIONS
#ifdef USE_LIBUNWIND_EXCEPTIONS
                            " -lunwind"
                            " -lunwind"
#endif
#endif
                            );
                            );
            p += 10;
            p += 10;
            in_sep = 0;
            in_sep = 0;
          }
          }
        else
        else
          {
          {
            obstack_1grow (&obstack, *p);
            obstack_1grow (&obstack, *p);
            in_sep = (*p == ' ');
            in_sep = (*p == ' ');
            p += 1;
            p += 1;
          }
          }
      }
      }
 
 
    obstack_1grow (&obstack, '\0');
    obstack_1grow (&obstack, '\0');
    libgcc_spec = XOBFINISH (&obstack, const char *);
    libgcc_spec = XOBFINISH (&obstack, const char *);
  }
  }
#endif
#endif
#ifdef USE_AS_TRADITIONAL_FORMAT
#ifdef USE_AS_TRADITIONAL_FORMAT
  /* Prepend "--traditional-format" to whatever asm_spec we had before.  */
  /* Prepend "--traditional-format" to whatever asm_spec we had before.  */
  {
  {
    static const char tf[] = "--traditional-format ";
    static const char tf[] = "--traditional-format ";
    obstack_grow (&obstack, tf, sizeof(tf) - 1);
    obstack_grow (&obstack, tf, sizeof(tf) - 1);
    obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
    obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
    asm_spec = XOBFINISH (&obstack, const char *);
    asm_spec = XOBFINISH (&obstack, const char *);
  }
  }
#endif
#endif
#ifdef LINK_EH_SPEC
#ifdef LINK_EH_SPEC
  /* Prepend LINK_EH_SPEC to whatever link_spec we had before.  */
  /* Prepend LINK_EH_SPEC to whatever link_spec we had before.  */
  obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
  obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
  obstack_grow0 (&obstack, link_spec, strlen (link_spec));
  obstack_grow0 (&obstack, link_spec, strlen (link_spec));
  link_spec = XOBFINISH (&obstack, const char *);
  link_spec = XOBFINISH (&obstack, const char *);
#endif
#endif
 
 
  specs = sl;
  specs = sl;
}
}


/* Change the value of spec NAME to SPEC.  If SPEC is empty, then the spec is
/* Change the value of spec NAME to SPEC.  If SPEC is empty, then the spec is
   removed; If the spec starts with a + then SPEC is added to the end of the
   removed; If the spec starts with a + then SPEC is added to the end of the
   current spec.  */
   current spec.  */
 
 
static void
static void
set_spec (const char *name, const char *spec)
set_spec (const char *name, const char *spec)
{
{
  struct spec_list *sl;
  struct spec_list *sl;
  const char *old_spec;
  const char *old_spec;
  int name_len = strlen (name);
  int name_len = strlen (name);
  int i;
  int i;
 
 
  /* If this is the first call, initialize the statically allocated specs.  */
  /* If this is the first call, initialize the statically allocated specs.  */
  if (!specs)
  if (!specs)
    {
    {
      struct spec_list *next = (struct spec_list *) 0;
      struct spec_list *next = (struct spec_list *) 0;
      for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
      for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
        {
        {
          sl = &static_specs[i];
          sl = &static_specs[i];
          sl->next = next;
          sl->next = next;
          next = sl;
          next = sl;
        }
        }
      specs = sl;
      specs = sl;
    }
    }
 
 
  /* See if the spec already exists.  */
  /* See if the spec already exists.  */
  for (sl = specs; sl; sl = sl->next)
  for (sl = specs; sl; sl = sl->next)
    if (name_len == sl->name_len && !strcmp (sl->name, name))
    if (name_len == sl->name_len && !strcmp (sl->name, name))
      break;
      break;
 
 
  if (!sl)
  if (!sl)
    {
    {
      /* Not found - make it.  */
      /* Not found - make it.  */
      sl = XNEW (struct spec_list);
      sl = XNEW (struct spec_list);
      sl->name = xstrdup (name);
      sl->name = xstrdup (name);
      sl->name_len = name_len;
      sl->name_len = name_len;
      sl->ptr_spec = &sl->ptr;
      sl->ptr_spec = &sl->ptr;
      sl->alloc_p = 0;
      sl->alloc_p = 0;
      *(sl->ptr_spec) = "";
      *(sl->ptr_spec) = "";
      sl->next = specs;
      sl->next = specs;
      specs = sl;
      specs = sl;
    }
    }
 
 
  old_spec = *(sl->ptr_spec);
  old_spec = *(sl->ptr_spec);
  *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
  *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
                     ? concat (old_spec, spec + 1, NULL)
                     ? concat (old_spec, spec + 1, NULL)
                     : xstrdup (spec));
                     : xstrdup (spec));
 
 
#ifdef DEBUG_SPECS
#ifdef DEBUG_SPECS
  if (verbose_flag)
  if (verbose_flag)
    notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
    notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
#endif
#endif
 
 
  /* Free the old spec.  */
  /* Free the old spec.  */
  if (old_spec && sl->alloc_p)
  if (old_spec && sl->alloc_p)
    free ((void *) old_spec);
    free ((void *) old_spec);
 
 
  sl->alloc_p = 1;
  sl->alloc_p = 1;
}
}


/* Accumulate a command (program name and args), and run it.  */
/* Accumulate a command (program name and args), and run it.  */
 
 
/* Vector of pointers to arguments in the current line of specifications.  */
/* Vector of pointers to arguments in the current line of specifications.  */
 
 
static const char **argbuf;
static const char **argbuf;
 
 
/* Number of elements allocated in argbuf.  */
/* Number of elements allocated in argbuf.  */
 
 
static int argbuf_length;
static int argbuf_length;
 
 
/* Number of elements in argbuf currently in use (containing args).  */
/* Number of elements in argbuf currently in use (containing args).  */
 
 
static int argbuf_index;
static int argbuf_index;
 
 
/* Position in the argbuf array containing the name of the output file
/* Position in the argbuf array containing the name of the output file
   (the value associated with the "-o" flag).  */
   (the value associated with the "-o" flag).  */
 
 
static int have_o_argbuf_index = 0;
static int have_o_argbuf_index = 0;
 
 
/* Were the options -c or -S passed.  */
/* Were the options -c or -S passed.  */
static int have_c = 0;
static int have_c = 0;
 
 
/* Was the option -o passed.  */
/* Was the option -o passed.  */
static int have_o = 0;
static int have_o = 0;
 
 
/* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
/* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
   temp file.  If the HOST_BIT_BUCKET is used for %j, no entry is made for
   temp file.  If the HOST_BIT_BUCKET is used for %j, no entry is made for
   it here.  */
   it here.  */
 
 
static struct temp_name {
static struct temp_name {
  const char *suffix;   /* suffix associated with the code.  */
  const char *suffix;   /* suffix associated with the code.  */
  int length;           /* strlen (suffix).  */
  int length;           /* strlen (suffix).  */
  int unique;           /* Indicates whether %g or %u/%U was used.  */
  int unique;           /* Indicates whether %g or %u/%U was used.  */
  const char *filename; /* associated filename.  */
  const char *filename; /* associated filename.  */
  int filename_length;  /* strlen (filename).  */
  int filename_length;  /* strlen (filename).  */
  struct temp_name *next;
  struct temp_name *next;
} *temp_names;
} *temp_names;
 
 
/* Number of commands executed so far.  */
/* Number of commands executed so far.  */
 
 
static int execution_count;
static int execution_count;
 
 
/* Number of commands that exited with a signal.  */
/* Number of commands that exited with a signal.  */
 
 
static int signal_count;
static int signal_count;
 
 
/* Name with which this program was invoked.  */
/* Name with which this program was invoked.  */
 
 
static const char *programname;
static const char *programname;


/* Allocate the argument vector.  */
/* Allocate the argument vector.  */
 
 
static void
static void
alloc_args (void)
alloc_args (void)
{
{
  argbuf_length = 10;
  argbuf_length = 10;
  argbuf = XNEWVEC (const char *, argbuf_length);
  argbuf = XNEWVEC (const char *, argbuf_length);
}
}
 
 
/* Clear out the vector of arguments (after a command is executed).  */
/* Clear out the vector of arguments (after a command is executed).  */
 
 
static void
static void
clear_args (void)
clear_args (void)
{
{
  argbuf_index = 0;
  argbuf_index = 0;
}
}
 
 
/* Add one argument to the vector at the end.
/* Add one argument to the vector at the end.
   This is done when a space is seen or at the end of the line.
   This is done when a space is seen or at the end of the line.
   If DELETE_ALWAYS is nonzero, the arg is a filename
   If DELETE_ALWAYS is nonzero, the arg is a filename
    and the file should be deleted eventually.
    and the file should be deleted eventually.
   If DELETE_FAILURE is nonzero, the arg is a filename
   If DELETE_FAILURE is nonzero, the arg is a filename
    and the file should be deleted if this compilation fails.  */
    and the file should be deleted if this compilation fails.  */
 
 
static void
static void
store_arg (const char *arg, int delete_always, int delete_failure)
store_arg (const char *arg, int delete_always, int delete_failure)
{
{
  if (argbuf_index + 1 == argbuf_length)
  if (argbuf_index + 1 == argbuf_length)
    argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
    argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
 
 
  argbuf[argbuf_index++] = arg;
  argbuf[argbuf_index++] = arg;
  argbuf[argbuf_index] = 0;
  argbuf[argbuf_index] = 0;
 
 
  if (strcmp (arg, "-o") == 0)
  if (strcmp (arg, "-o") == 0)
    have_o_argbuf_index = argbuf_index;
    have_o_argbuf_index = argbuf_index;
  if (delete_always || delete_failure)
  if (delete_always || delete_failure)
    record_temp_file (arg, delete_always, delete_failure);
    record_temp_file (arg, delete_always, delete_failure);
}
}


/* Load specs from a file name named FILENAME, replacing occurrences of
/* Load specs from a file name named FILENAME, replacing occurrences of
   various different types of line-endings, \r\n, \n\r and just \r, with
   various different types of line-endings, \r\n, \n\r and just \r, with
   a single \n.  */
   a single \n.  */
 
 
static char *
static char *
load_specs (const char *filename)
load_specs (const char *filename)
{
{
  int desc;
  int desc;
  int readlen;
  int readlen;
  struct stat statbuf;
  struct stat statbuf;
  char *buffer;
  char *buffer;
  char *buffer_p;
  char *buffer_p;
  char *specs;
  char *specs;
  char *specs_p;
  char *specs_p;
 
 
  if (verbose_flag)
  if (verbose_flag)
    notice ("Reading specs from %s\n", filename);
    notice ("Reading specs from %s\n", filename);
 
 
  /* Open and stat the file.  */
  /* Open and stat the file.  */
  desc = open (filename, O_RDONLY, 0);
  desc = open (filename, O_RDONLY, 0);
  if (desc < 0)
  if (desc < 0)
    pfatal_with_name (filename);
    pfatal_with_name (filename);
  if (stat (filename, &statbuf) < 0)
  if (stat (filename, &statbuf) < 0)
    pfatal_with_name (filename);
    pfatal_with_name (filename);
 
 
  /* Read contents of file into BUFFER.  */
  /* Read contents of file into BUFFER.  */
  buffer = XNEWVEC (char, statbuf.st_size + 1);
  buffer = XNEWVEC (char, statbuf.st_size + 1);
  readlen = read (desc, buffer, (unsigned) statbuf.st_size);
  readlen = read (desc, buffer, (unsigned) statbuf.st_size);
  if (readlen < 0)
  if (readlen < 0)
    pfatal_with_name (filename);
    pfatal_with_name (filename);
  buffer[readlen] = 0;
  buffer[readlen] = 0;
  close (desc);
  close (desc);
 
 
  specs = XNEWVEC (char, readlen + 1);
  specs = XNEWVEC (char, readlen + 1);
  specs_p = specs;
  specs_p = specs;
  for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
  for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
    {
    {
      int skip = 0;
      int skip = 0;
      char c = *buffer_p;
      char c = *buffer_p;
      if (c == '\r')
      if (c == '\r')
        {
        {
          if (buffer_p > buffer && *(buffer_p - 1) == '\n')     /* \n\r */
          if (buffer_p > buffer && *(buffer_p - 1) == '\n')     /* \n\r */
            skip = 1;
            skip = 1;
          else if (*(buffer_p + 1) == '\n')                     /* \r\n */
          else if (*(buffer_p + 1) == '\n')                     /* \r\n */
            skip = 1;
            skip = 1;
          else                                                  /* \r */
          else                                                  /* \r */
            c = '\n';
            c = '\n';
        }
        }
      if (! skip)
      if (! skip)
        *specs_p++ = c;
        *specs_p++ = c;
    }
    }
  *specs_p = '\0';
  *specs_p = '\0';
 
 
  free (buffer);
  free (buffer);
  return (specs);
  return (specs);
}
}
 
 
/* Read compilation specs from a file named FILENAME,
/* Read compilation specs from a file named FILENAME,
   replacing the default ones.
   replacing the default ones.
 
 
   A suffix which starts with `*' is a definition for
   A suffix which starts with `*' is a definition for
   one of the machine-specific sub-specs.  The "suffix" should be
   one of the machine-specific sub-specs.  The "suffix" should be
   *asm, *cc1, *cpp, *link, *startfile, etc.
   *asm, *cc1, *cpp, *link, *startfile, etc.
   The corresponding spec is stored in asm_spec, etc.,
   The corresponding spec is stored in asm_spec, etc.,
   rather than in the `compilers' vector.
   rather than in the `compilers' vector.
 
 
   Anything invalid in the file is a fatal error.  */
   Anything invalid in the file is a fatal error.  */
 
 
static void
static void
read_specs (const char *filename, int main_p)
read_specs (const char *filename, int main_p)
{
{
  char *buffer;
  char *buffer;
  char *p;
  char *p;
 
 
  buffer = load_specs (filename);
  buffer = load_specs (filename);
 
 
  /* Scan BUFFER for specs, putting them in the vector.  */
  /* Scan BUFFER for specs, putting them in the vector.  */
  p = buffer;
  p = buffer;
  while (1)
  while (1)
    {
    {
      char *suffix;
      char *suffix;
      char *spec;
      char *spec;
      char *in, *out, *p1, *p2, *p3;
      char *in, *out, *p1, *p2, *p3;
 
 
      /* Advance P in BUFFER to the next nonblank nocomment line.  */
      /* Advance P in BUFFER to the next nonblank nocomment line.  */
      p = skip_whitespace (p);
      p = skip_whitespace (p);
      if (*p == 0)
      if (*p == 0)
        break;
        break;
 
 
      /* Is this a special command that starts with '%'? */
      /* Is this a special command that starts with '%'? */
      /* Don't allow this for the main specs file, since it would
      /* Don't allow this for the main specs file, since it would
         encourage people to overwrite it.  */
         encourage people to overwrite it.  */
      if (*p == '%' && !main_p)
      if (*p == '%' && !main_p)
        {
        {
          p1 = p;
          p1 = p;
          while (*p && *p != '\n')
          while (*p && *p != '\n')
            p++;
            p++;
 
 
          /* Skip '\n'.  */
          /* Skip '\n'.  */
          p++;
          p++;
 
 
          if (!strncmp (p1, "%include", sizeof ("%include") - 1)
          if (!strncmp (p1, "%include", sizeof ("%include") - 1)
              && (p1[sizeof "%include" - 1] == ' '
              && (p1[sizeof "%include" - 1] == ' '
                  || p1[sizeof "%include" - 1] == '\t'))
                  || p1[sizeof "%include" - 1] == '\t'))
            {
            {
              char *new_filename;
              char *new_filename;
 
 
              p1 += sizeof ("%include");
              p1 += sizeof ("%include");
              while (*p1 == ' ' || *p1 == '\t')
              while (*p1 == ' ' || *p1 == '\t')
                p1++;
                p1++;
 
 
              if (*p1++ != '<' || p[-2] != '>')
              if (*p1++ != '<' || p[-2] != '>')
                fatal ("specs %%include syntax malformed after %ld characters",
                fatal ("specs %%include syntax malformed after %ld characters",
                       (long) (p1 - buffer + 1));
                       (long) (p1 - buffer + 1));
 
 
              p[-2] = '\0';
              p[-2] = '\0';
              new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
              new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
              read_specs (new_filename ? new_filename : p1, FALSE);
              read_specs (new_filename ? new_filename : p1, FALSE);
              continue;
              continue;
            }
            }
          else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
          else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
                   && (p1[sizeof "%include_noerr" - 1] == ' '
                   && (p1[sizeof "%include_noerr" - 1] == ' '
                       || p1[sizeof "%include_noerr" - 1] == '\t'))
                       || p1[sizeof "%include_noerr" - 1] == '\t'))
            {
            {
              char *new_filename;
              char *new_filename;
 
 
              p1 += sizeof "%include_noerr";
              p1 += sizeof "%include_noerr";
              while (*p1 == ' ' || *p1 == '\t')
              while (*p1 == ' ' || *p1 == '\t')
                p1++;
                p1++;
 
 
              if (*p1++ != '<' || p[-2] != '>')
              if (*p1++ != '<' || p[-2] != '>')
                fatal ("specs %%include syntax malformed after %ld characters",
                fatal ("specs %%include syntax malformed after %ld characters",
                       (long) (p1 - buffer + 1));
                       (long) (p1 - buffer + 1));
 
 
              p[-2] = '\0';
              p[-2] = '\0';
              new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
              new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
              if (new_filename)
              if (new_filename)
                read_specs (new_filename, FALSE);
                read_specs (new_filename, FALSE);
              else if (verbose_flag)
              else if (verbose_flag)
                notice ("could not find specs file %s\n", p1);
                notice ("could not find specs file %s\n", p1);
              continue;
              continue;
            }
            }
          else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
          else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
                   && (p1[sizeof "%rename" - 1] == ' '
                   && (p1[sizeof "%rename" - 1] == ' '
                       || p1[sizeof "%rename" - 1] == '\t'))
                       || p1[sizeof "%rename" - 1] == '\t'))
            {
            {
              int name_len;
              int name_len;
              struct spec_list *sl;
              struct spec_list *sl;
              struct spec_list *newsl;
              struct spec_list *newsl;
 
 
              /* Get original name.  */
              /* Get original name.  */
              p1 += sizeof "%rename";
              p1 += sizeof "%rename";
              while (*p1 == ' ' || *p1 == '\t')
              while (*p1 == ' ' || *p1 == '\t')
                p1++;
                p1++;
 
 
              if (! ISALPHA ((unsigned char) *p1))
              if (! ISALPHA ((unsigned char) *p1))
                fatal ("specs %%rename syntax malformed after %ld characters",
                fatal ("specs %%rename syntax malformed after %ld characters",
                       (long) (p1 - buffer));
                       (long) (p1 - buffer));
 
 
              p2 = p1;
              p2 = p1;
              while (*p2 && !ISSPACE ((unsigned char) *p2))
              while (*p2 && !ISSPACE ((unsigned char) *p2))
                p2++;
                p2++;
 
 
              if (*p2 != ' ' && *p2 != '\t')
              if (*p2 != ' ' && *p2 != '\t')
                fatal ("specs %%rename syntax malformed after %ld characters",
                fatal ("specs %%rename syntax malformed after %ld characters",
                       (long) (p2 - buffer));
                       (long) (p2 - buffer));
 
 
              name_len = p2 - p1;
              name_len = p2 - p1;
              *p2++ = '\0';
              *p2++ = '\0';
              while (*p2 == ' ' || *p2 == '\t')
              while (*p2 == ' ' || *p2 == '\t')
                p2++;
                p2++;
 
 
              if (! ISALPHA ((unsigned char) *p2))
              if (! ISALPHA ((unsigned char) *p2))
                fatal ("specs %%rename syntax malformed after %ld characters",
                fatal ("specs %%rename syntax malformed after %ld characters",
                       (long) (p2 - buffer));
                       (long) (p2 - buffer));
 
 
              /* Get new spec name.  */
              /* Get new spec name.  */
              p3 = p2;
              p3 = p2;
              while (*p3 && !ISSPACE ((unsigned char) *p3))
              while (*p3 && !ISSPACE ((unsigned char) *p3))
                p3++;
                p3++;
 
 
              if (p3 != p - 1)
              if (p3 != p - 1)
                fatal ("specs %%rename syntax malformed after %ld characters",
                fatal ("specs %%rename syntax malformed after %ld characters",
                       (long) (p3 - buffer));
                       (long) (p3 - buffer));
              *p3 = '\0';
              *p3 = '\0';
 
 
              for (sl = specs; sl; sl = sl->next)
              for (sl = specs; sl; sl = sl->next)
                if (name_len == sl->name_len && !strcmp (sl->name, p1))
                if (name_len == sl->name_len && !strcmp (sl->name, p1))
                  break;
                  break;
 
 
              if (!sl)
              if (!sl)
                fatal ("specs %s spec was not found to be renamed", p1);
                fatal ("specs %s spec was not found to be renamed", p1);
 
 
              if (strcmp (p1, p2) == 0)
              if (strcmp (p1, p2) == 0)
                continue;
                continue;
 
 
              for (newsl = specs; newsl; newsl = newsl->next)
              for (newsl = specs; newsl; newsl = newsl->next)
                if (strcmp (newsl->name, p2) == 0)
                if (strcmp (newsl->name, p2) == 0)
                  fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
                  fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
                    filename, p1, p2);
                    filename, p1, p2);
 
 
              if (verbose_flag)
              if (verbose_flag)
                {
                {
                  notice ("rename spec %s to %s\n", p1, p2);
                  notice ("rename spec %s to %s\n", p1, p2);
#ifdef DEBUG_SPECS
#ifdef DEBUG_SPECS
                  notice ("spec is '%s'\n\n", *(sl->ptr_spec));
                  notice ("spec is '%s'\n\n", *(sl->ptr_spec));
#endif
#endif
                }
                }
 
 
              set_spec (p2, *(sl->ptr_spec));
              set_spec (p2, *(sl->ptr_spec));
              if (sl->alloc_p)
              if (sl->alloc_p)
                free ((void *) *(sl->ptr_spec));
                free ((void *) *(sl->ptr_spec));
 
 
              *(sl->ptr_spec) = "";
              *(sl->ptr_spec) = "";
              sl->alloc_p = 0;
              sl->alloc_p = 0;
              continue;
              continue;
            }
            }
          else
          else
            fatal ("specs unknown %% command after %ld characters",
            fatal ("specs unknown %% command after %ld characters",
                   (long) (p1 - buffer));
                   (long) (p1 - buffer));
        }
        }
 
 
      /* Find the colon that should end the suffix.  */
      /* Find the colon that should end the suffix.  */
      p1 = p;
      p1 = p;
      while (*p1 && *p1 != ':' && *p1 != '\n')
      while (*p1 && *p1 != ':' && *p1 != '\n')
        p1++;
        p1++;
 
 
      /* The colon shouldn't be missing.  */
      /* The colon shouldn't be missing.  */
      if (*p1 != ':')
      if (*p1 != ':')
        fatal ("specs file malformed after %ld characters",
        fatal ("specs file malformed after %ld characters",
               (long) (p1 - buffer));
               (long) (p1 - buffer));
 
 
      /* Skip back over trailing whitespace.  */
      /* Skip back over trailing whitespace.  */
      p2 = p1;
      p2 = p1;
      while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
      while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
        p2--;
        p2--;
 
 
      /* Copy the suffix to a string.  */
      /* Copy the suffix to a string.  */
      suffix = save_string (p, p2 - p);
      suffix = save_string (p, p2 - p);
      /* Find the next line.  */
      /* Find the next line.  */
      p = skip_whitespace (p1 + 1);
      p = skip_whitespace (p1 + 1);
      if (p[1] == 0)
      if (p[1] == 0)
        fatal ("specs file malformed after %ld characters",
        fatal ("specs file malformed after %ld characters",
               (long) (p - buffer));
               (long) (p - buffer));
 
 
      p1 = p;
      p1 = p;
      /* Find next blank line or end of string.  */
      /* Find next blank line or end of string.  */
      while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
      while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
        p1++;
        p1++;
 
 
      /* Specs end at the blank line and do not include the newline.  */
      /* Specs end at the blank line and do not include the newline.  */
      spec = save_string (p, p1 - p);
      spec = save_string (p, p1 - p);
      p = p1;
      p = p1;
 
 
      /* Delete backslash-newline sequences from the spec.  */
      /* Delete backslash-newline sequences from the spec.  */
      in = spec;
      in = spec;
      out = spec;
      out = spec;
      while (*in != 0)
      while (*in != 0)
        {
        {
          if (in[0] == '\\' && in[1] == '\n')
          if (in[0] == '\\' && in[1] == '\n')
            in += 2;
            in += 2;
          else if (in[0] == '#')
          else if (in[0] == '#')
            while (*in && *in != '\n')
            while (*in && *in != '\n')
              in++;
              in++;
 
 
          else
          else
            *out++ = *in++;
            *out++ = *in++;
        }
        }
      *out = 0;
      *out = 0;
 
 
      if (suffix[0] == '*')
      if (suffix[0] == '*')
        {
        {
          if (! strcmp (suffix, "*link_command"))
          if (! strcmp (suffix, "*link_command"))
            link_command_spec = spec;
            link_command_spec = spec;
          else
          else
            set_spec (suffix + 1, spec);
            set_spec (suffix + 1, spec);
        }
        }
      else
      else
        {
        {
          /* Add this pair to the vector.  */
          /* Add this pair to the vector.  */
          compilers
          compilers
            = xrealloc (compilers,
            = xrealloc (compilers,
                        (n_compilers + 2) * sizeof (struct compiler));
                        (n_compilers + 2) * sizeof (struct compiler));
 
 
          compilers[n_compilers].suffix = suffix;
          compilers[n_compilers].suffix = suffix;
          compilers[n_compilers].spec = spec;
          compilers[n_compilers].spec = spec;
          n_compilers++;
          n_compilers++;
          memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
          memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
        }
        }
 
 
      if (*suffix == 0)
      if (*suffix == 0)
        link_command_spec = spec;
        link_command_spec = spec;
    }
    }
 
 
  if (link_command_spec == 0)
  if (link_command_spec == 0)
    fatal ("spec file has no spec for linking");
    fatal ("spec file has no spec for linking");
}
}


/* Record the names of temporary files we tell compilers to write,
/* Record the names of temporary files we tell compilers to write,
   and delete them at the end of the run.  */
   and delete them at the end of the run.  */
 
 
/* This is the common prefix we use to make temp file names.
/* This is the common prefix we use to make temp file names.
   It is chosen once for each run of this program.
   It is chosen once for each run of this program.
   It is substituted into a spec by %g or %j.
   It is substituted into a spec by %g or %j.
   Thus, all temp file names contain this prefix.
   Thus, all temp file names contain this prefix.
   In practice, all temp file names start with this prefix.
   In practice, all temp file names start with this prefix.
 
 
   This prefix comes from the envvar TMPDIR if it is defined;
   This prefix comes from the envvar TMPDIR if it is defined;
   otherwise, from the P_tmpdir macro if that is defined;
   otherwise, from the P_tmpdir macro if that is defined;
   otherwise, in /usr/tmp or /tmp;
   otherwise, in /usr/tmp or /tmp;
   or finally the current directory if all else fails.  */
   or finally the current directory if all else fails.  */
 
 
static const char *temp_filename;
static const char *temp_filename;
 
 
/* Length of the prefix.  */
/* Length of the prefix.  */
 
 
static int temp_filename_length;
static int temp_filename_length;
 
 
/* Define the list of temporary files to delete.  */
/* Define the list of temporary files to delete.  */
 
 
struct temp_file
struct temp_file
{
{
  const char *name;
  const char *name;
  struct temp_file *next;
  struct temp_file *next;
};
};
 
 
/* Queue of files to delete on success or failure of compilation.  */
/* Queue of files to delete on success or failure of compilation.  */
static struct temp_file *always_delete_queue;
static struct temp_file *always_delete_queue;
/* Queue of files to delete on failure of compilation.  */
/* Queue of files to delete on failure of compilation.  */
static struct temp_file *failure_delete_queue;
static struct temp_file *failure_delete_queue;
 
 
/* Record FILENAME as a file to be deleted automatically.
/* Record FILENAME as a file to be deleted automatically.
   ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
   ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
   otherwise delete it in any case.
   otherwise delete it in any case.
   FAIL_DELETE nonzero means delete it if a compilation step fails;
   FAIL_DELETE nonzero means delete it if a compilation step fails;
   otherwise delete it in any case.  */
   otherwise delete it in any case.  */
 
 
void
void
record_temp_file (const char *filename, int always_delete, int fail_delete)
record_temp_file (const char *filename, int always_delete, int fail_delete)
{
{
  char *const name = xstrdup (filename);
  char *const name = xstrdup (filename);
 
 
  if (always_delete)
  if (always_delete)
    {
    {
      struct temp_file *temp;
      struct temp_file *temp;
      for (temp = always_delete_queue; temp; temp = temp->next)
      for (temp = always_delete_queue; temp; temp = temp->next)
        if (! strcmp (name, temp->name))
        if (! strcmp (name, temp->name))
          goto already1;
          goto already1;
 
 
      temp = XNEW (struct temp_file);
      temp = XNEW (struct temp_file);
      temp->next = always_delete_queue;
      temp->next = always_delete_queue;
      temp->name = name;
      temp->name = name;
      always_delete_queue = temp;
      always_delete_queue = temp;
 
 
    already1:;
    already1:;
    }
    }
 
 
  if (fail_delete)
  if (fail_delete)
    {
    {
      struct temp_file *temp;
      struct temp_file *temp;
      for (temp = failure_delete_queue; temp; temp = temp->next)
      for (temp = failure_delete_queue; temp; temp = temp->next)
        if (! strcmp (name, temp->name))
        if (! strcmp (name, temp->name))
          goto already2;
          goto already2;
 
 
      temp = XNEW (struct temp_file);
      temp = XNEW (struct temp_file);
      temp->next = failure_delete_queue;
      temp->next = failure_delete_queue;
      temp->name = name;
      temp->name = name;
      failure_delete_queue = temp;
      failure_delete_queue = temp;
 
 
    already2:;
    already2:;
    }
    }
}
}
 
 
/* Delete all the temporary files whose names we previously recorded.  */
/* Delete all the temporary files whose names we previously recorded.  */
 
 
#ifndef DELETE_IF_ORDINARY
#ifndef DELETE_IF_ORDINARY
#define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG)        \
#define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG)        \
do                                                      \
do                                                      \
  {                                                     \
  {                                                     \
    if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode))  \
    if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode))  \
      if (unlink (NAME) < 0)                            \
      if (unlink (NAME) < 0)                            \
        if (VERBOSE_FLAG)                               \
        if (VERBOSE_FLAG)                               \
          perror_with_name (NAME);                      \
          perror_with_name (NAME);                      \
  } while (0)
  } while (0)
#endif
#endif
 
 
static void
static void
delete_if_ordinary (const char *name)
delete_if_ordinary (const char *name)
{
{
  struct stat st;
  struct stat st;
#ifdef DEBUG
#ifdef DEBUG
  int i, c;
  int i, c;
 
 
  printf ("Delete %s? (y or n) ", name);
  printf ("Delete %s? (y or n) ", name);
  fflush (stdout);
  fflush (stdout);
  i = getchar ();
  i = getchar ();
  if (i != '\n')
  if (i != '\n')
    while ((c = getchar ()) != '\n' && c != EOF)
    while ((c = getchar ()) != '\n' && c != EOF)
      ;
      ;
 
 
  if (i == 'y' || i == 'Y')
  if (i == 'y' || i == 'Y')
#endif /* DEBUG */
#endif /* DEBUG */
  DELETE_IF_ORDINARY (name, st, verbose_flag);
  DELETE_IF_ORDINARY (name, st, verbose_flag);
}
}
 
 
static void
static void
delete_temp_files (void)
delete_temp_files (void)
{
{
  struct temp_file *temp;
  struct temp_file *temp;
 
 
  for (temp = always_delete_queue; temp; temp = temp->next)
  for (temp = always_delete_queue; temp; temp = temp->next)
    delete_if_ordinary (temp->name);
    delete_if_ordinary (temp->name);
  always_delete_queue = 0;
  always_delete_queue = 0;
}
}
 
 
/* Delete all the files to be deleted on error.  */
/* Delete all the files to be deleted on error.  */
 
 
static void
static void
delete_failure_queue (void)
delete_failure_queue (void)
{
{
  struct temp_file *temp;
  struct temp_file *temp;
 
 
  for (temp = failure_delete_queue; temp; temp = temp->next)
  for (temp = failure_delete_queue; temp; temp = temp->next)
    delete_if_ordinary (temp->name);
    delete_if_ordinary (temp->name);
}
}
 
 
static void
static void
clear_failure_queue (void)
clear_failure_queue (void)
{
{
  failure_delete_queue = 0;
  failure_delete_queue = 0;
}
}


/* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
/* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
   returns non-NULL.
   returns non-NULL.
   If DO_MULTI is true iterate over the paths twice, first with multilib
   If DO_MULTI is true iterate over the paths twice, first with multilib
   suffix then without, otherwise iterate over the paths once without
   suffix then without, otherwise iterate over the paths once without
   adding a multilib suffix.  When DO_MULTI is true, some attempt is made
   adding a multilib suffix.  When DO_MULTI is true, some attempt is made
   to avoid visiting the same path twice, but we could do better.  For
   to avoid visiting the same path twice, but we could do better.  For
   instance, /usr/lib/../lib is considered different from /usr/lib.
   instance, /usr/lib/../lib is considered different from /usr/lib.
   At least EXTRA_SPACE chars past the end of the path passed to
   At least EXTRA_SPACE chars past the end of the path passed to
   CALLBACK are available for use by the callback.
   CALLBACK are available for use by the callback.
   CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
   CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
 
 
   Returns the value returned by CALLBACK.  */
   Returns the value returned by CALLBACK.  */
 
 
static void *
static void *
for_each_path (const struct path_prefix *paths,
for_each_path (const struct path_prefix *paths,
               bool do_multi,
               bool do_multi,
               size_t extra_space,
               size_t extra_space,
               void *(*callback) (char *, void *),
               void *(*callback) (char *, void *),
               void *callback_info)
               void *callback_info)
{
{
  struct prefix_list *pl;
  struct prefix_list *pl;
  const char *multi_dir = NULL;
  const char *multi_dir = NULL;
  const char *multi_os_dir = NULL;
  const char *multi_os_dir = NULL;
  const char *multi_suffix;
  const char *multi_suffix;
  const char *just_multi_suffix;
  const char *just_multi_suffix;
  char *path = NULL;
  char *path = NULL;
  void *ret = NULL;
  void *ret = NULL;
  bool skip_multi_dir = false;
  bool skip_multi_dir = false;
  bool skip_multi_os_dir = false;
  bool skip_multi_os_dir = false;
 
 
  multi_suffix = machine_suffix;
  multi_suffix = machine_suffix;
  just_multi_suffix = just_machine_suffix;
  just_multi_suffix = just_machine_suffix;
  if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
  if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
    {
    {
      multi_dir = concat (multilib_dir, dir_separator_str, NULL);
      multi_dir = concat (multilib_dir, dir_separator_str, NULL);
      multi_suffix = concat (multi_suffix, multi_dir, NULL);
      multi_suffix = concat (multi_suffix, multi_dir, NULL);
      just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
      just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
    }
    }
  if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
  if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
    multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
    multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
 
 
  while (1)
  while (1)
    {
    {
      size_t multi_dir_len = 0;
      size_t multi_dir_len = 0;
      size_t multi_os_dir_len = 0;
      size_t multi_os_dir_len = 0;
      size_t suffix_len;
      size_t suffix_len;
      size_t just_suffix_len;
      size_t just_suffix_len;
      size_t len;
      size_t len;
 
 
      if (multi_dir)
      if (multi_dir)
        multi_dir_len = strlen (multi_dir);
        multi_dir_len = strlen (multi_dir);
      if (multi_os_dir)
      if (multi_os_dir)
        multi_os_dir_len = strlen (multi_os_dir);
        multi_os_dir_len = strlen (multi_os_dir);
      suffix_len = strlen (multi_suffix);
      suffix_len = strlen (multi_suffix);
      just_suffix_len = strlen (just_multi_suffix);
      just_suffix_len = strlen (just_multi_suffix);
 
 
      if (path == NULL)
      if (path == NULL)
        {
        {
          len = paths->max_len + extra_space + 1;
          len = paths->max_len + extra_space + 1;
          if (suffix_len > multi_os_dir_len)
          if (suffix_len > multi_os_dir_len)
            len += suffix_len;
            len += suffix_len;
          else
          else
            len += multi_os_dir_len;
            len += multi_os_dir_len;
          path = XNEWVEC (char, len);
          path = XNEWVEC (char, len);
        }
        }
 
 
      for (pl = paths->plist; pl != 0; pl = pl->next)
      for (pl = paths->plist; pl != 0; pl = pl->next)
        {
        {
          len = strlen (pl->prefix);
          len = strlen (pl->prefix);
          memcpy (path, pl->prefix, len);
          memcpy (path, pl->prefix, len);
 
 
          /* Look first in MACHINE/VERSION subdirectory.  */
          /* Look first in MACHINE/VERSION subdirectory.  */
          if (!skip_multi_dir)
          if (!skip_multi_dir)
            {
            {
              memcpy (path + len, multi_suffix, suffix_len + 1);
              memcpy (path + len, multi_suffix, suffix_len + 1);
              ret = callback (path, callback_info);
              ret = callback (path, callback_info);
              if (ret)
              if (ret)
                break;
                break;
            }
            }
 
 
          /* Some paths are tried with just the machine (ie. target)
          /* Some paths are tried with just the machine (ie. target)
             subdir.  This is used for finding as, ld, etc.  */
             subdir.  This is used for finding as, ld, etc.  */
          if (!skip_multi_dir
          if (!skip_multi_dir
              && pl->require_machine_suffix == 2)
              && pl->require_machine_suffix == 2)
            {
            {
              memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
              memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
              ret = callback (path, callback_info);
              ret = callback (path, callback_info);
              if (ret)
              if (ret)
                break;
                break;
            }
            }
 
 
          /* Now try the base path.  */
          /* Now try the base path.  */
          if (!pl->require_machine_suffix
          if (!pl->require_machine_suffix
              && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
              && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
            {
            {
              const char *this_multi;
              const char *this_multi;
              size_t this_multi_len;
              size_t this_multi_len;
 
 
              if (pl->os_multilib)
              if (pl->os_multilib)
                {
                {
                  this_multi = multi_os_dir;
                  this_multi = multi_os_dir;
                  this_multi_len = multi_os_dir_len;
                  this_multi_len = multi_os_dir_len;
                }
                }
              else
              else
                {
                {
                  this_multi = multi_dir;
                  this_multi = multi_dir;
                  this_multi_len = multi_dir_len;
                  this_multi_len = multi_dir_len;
                }
                }
 
 
              if (this_multi_len)
              if (this_multi_len)
                memcpy (path + len, this_multi, this_multi_len + 1);
                memcpy (path + len, this_multi, this_multi_len + 1);
              else
              else
                path[len] = '\0';
                path[len] = '\0';
 
 
              ret = callback (path, callback_info);
              ret = callback (path, callback_info);
              if (ret)
              if (ret)
                break;
                break;
            }
            }
        }
        }
      if (pl)
      if (pl)
        break;
        break;
 
 
      if (multi_dir == NULL && multi_os_dir == NULL)
      if (multi_dir == NULL && multi_os_dir == NULL)
        break;
        break;
 
 
      /* Run through the paths again, this time without multilibs.
      /* Run through the paths again, this time without multilibs.
         Don't repeat any we have already seen.  */
         Don't repeat any we have already seen.  */
      if (multi_dir)
      if (multi_dir)
        {
        {
          free ((char *) multi_dir);
          free ((char *) multi_dir);
          multi_dir = NULL;
          multi_dir = NULL;
          free ((char *) multi_suffix);
          free ((char *) multi_suffix);
          multi_suffix = machine_suffix;
          multi_suffix = machine_suffix;
          free ((char *) just_multi_suffix);
          free ((char *) just_multi_suffix);
          just_multi_suffix = just_machine_suffix;
          just_multi_suffix = just_machine_suffix;
        }
        }
      else
      else
        skip_multi_dir = true;
        skip_multi_dir = true;
      if (multi_os_dir)
      if (multi_os_dir)
        {
        {
          free ((char *) multi_os_dir);
          free ((char *) multi_os_dir);
          multi_os_dir = NULL;
          multi_os_dir = NULL;
        }
        }
      else
      else
        skip_multi_os_dir = true;
        skip_multi_os_dir = true;
    }
    }
 
 
  if (multi_dir)
  if (multi_dir)
    {
    {
      free ((char *) multi_dir);
      free ((char *) multi_dir);
      free ((char *) multi_suffix);
      free ((char *) multi_suffix);
      free ((char *) just_multi_suffix);
      free ((char *) just_multi_suffix);
    }
    }
  if (multi_os_dir)
  if (multi_os_dir)
    free ((char *) multi_os_dir);
    free ((char *) multi_os_dir);
  if (ret != path)
  if (ret != path)
    free (path);
    free (path);
  return ret;
  return ret;
}
}
 
 
/* Callback for build_search_list.  Adds path to obstack being built.  */
/* Callback for build_search_list.  Adds path to obstack being built.  */
 
 
struct add_to_obstack_info {
struct add_to_obstack_info {
  struct obstack *ob;
  struct obstack *ob;
  bool check_dir;
  bool check_dir;
  bool first_time;
  bool first_time;
};
};
 
 
static void *
static void *
add_to_obstack (char *path, void *data)
add_to_obstack (char *path, void *data)
{
{
  struct add_to_obstack_info *info = data;
  struct add_to_obstack_info *info = data;
 
 
  if (info->check_dir && !is_directory (path, false))
  if (info->check_dir && !is_directory (path, false))
    return NULL;
    return NULL;
 
 
  if (!info->first_time)
  if (!info->first_time)
    obstack_1grow (info->ob, PATH_SEPARATOR);
    obstack_1grow (info->ob, PATH_SEPARATOR);
 
 
  obstack_grow (info->ob, path, strlen (path));
  obstack_grow (info->ob, path, strlen (path));
 
 
  info->first_time = false;
  info->first_time = false;
  return NULL;
  return NULL;
}
}
 
 
/* Build a list of search directories from PATHS.
/* Build a list of search directories from PATHS.
   PREFIX is a string to prepend to the list.
   PREFIX is a string to prepend to the list.
   If CHECK_DIR_P is true we ensure the directory exists.
   If CHECK_DIR_P is true we ensure the directory exists.
   If DO_MULTI is true, multilib paths are output first, then
   If DO_MULTI is true, multilib paths are output first, then
   non-multilib paths.
   non-multilib paths.
   This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
   This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
   It is also used by the --print-search-dirs flag.  */
   It is also used by the --print-search-dirs flag.  */
 
 
static char *
static char *
build_search_list (const struct path_prefix *paths, const char *prefix,
build_search_list (const struct path_prefix *paths, const char *prefix,
                   bool check_dir, bool do_multi)
                   bool check_dir, bool do_multi)
{
{
  struct add_to_obstack_info info;
  struct add_to_obstack_info info;
 
 
  info.ob = &collect_obstack;
  info.ob = &collect_obstack;
  info.check_dir = check_dir;
  info.check_dir = check_dir;
  info.first_time = true;
  info.first_time = true;
 
 
  obstack_grow (&collect_obstack, prefix, strlen (prefix));
  obstack_grow (&collect_obstack, prefix, strlen (prefix));
  obstack_1grow (&collect_obstack, '=');
  obstack_1grow (&collect_obstack, '=');
 
 
  for_each_path (paths, do_multi, 0, add_to_obstack, &info);
  for_each_path (paths, do_multi, 0, add_to_obstack, &info);
 
 
  obstack_1grow (&collect_obstack, '\0');
  obstack_1grow (&collect_obstack, '\0');
  return XOBFINISH (&collect_obstack, char *);
  return XOBFINISH (&collect_obstack, char *);
}
}
 
 
/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
   for collect.  */
   for collect.  */
 
 
static void
static void
putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
                      bool do_multi)
                      bool do_multi)
{
{
  putenv (build_search_list (paths, env_var, true, do_multi));
  putenv (build_search_list (paths, env_var, true, do_multi));
}
}


/* Check whether NAME can be accessed in MODE.  This is like access,
/* Check whether NAME can be accessed in MODE.  This is like access,
   except that it never considers directories to be executable.  */
   except that it never considers directories to be executable.  */
 
 
static int
static int
access_check (const char *name, int mode)
access_check (const char *name, int mode)
{
{
  if (mode == X_OK)
  if (mode == X_OK)
    {
    {
      struct stat st;
      struct stat st;
 
 
      if (stat (name, &st) < 0
      if (stat (name, &st) < 0
          || S_ISDIR (st.st_mode))
          || S_ISDIR (st.st_mode))
        return -1;
        return -1;
    }
    }
 
 
  return access (name, mode);
  return access (name, mode);
}
}
 
 
/* Callback for find_a_file.  Appends the file name to the directory
/* Callback for find_a_file.  Appends the file name to the directory
   path.  If the resulting file exists in the right mode, return the
   path.  If the resulting file exists in the right mode, return the
   full pathname to the file.  */
   full pathname to the file.  */
 
 
struct file_at_path_info {
struct file_at_path_info {
  const char *name;
  const char *name;
  const char *suffix;
  const char *suffix;
  int name_len;
  int name_len;
  int suffix_len;
  int suffix_len;
  int mode;
  int mode;
};
};
 
 
static void *
static void *
file_at_path (char *path, void *data)
file_at_path (char *path, void *data)
{
{
  struct file_at_path_info *info = data;
  struct file_at_path_info *info = data;
  size_t len = strlen (path);
  size_t len = strlen (path);
 
 
  memcpy (path + len, info->name, info->name_len);
  memcpy (path + len, info->name, info->name_len);
  len += info->name_len;
  len += info->name_len;
 
 
  /* Some systems have a suffix for executable files.
  /* Some systems have a suffix for executable files.
     So try appending that first.  */
     So try appending that first.  */
  if (info->suffix_len)
  if (info->suffix_len)
    {
    {
      memcpy (path + len, info->suffix, info->suffix_len + 1);
      memcpy (path + len, info->suffix, info->suffix_len + 1);
      if (access_check (path, info->mode) == 0)
      if (access_check (path, info->mode) == 0)
        return path;
        return path;
    }
    }
 
 
  path[len] = '\0';
  path[len] = '\0';
  if (access_check (path, info->mode) == 0)
  if (access_check (path, info->mode) == 0)
    return path;
    return path;
 
 
  return NULL;
  return NULL;
}
}
 
 
/* Search for NAME using the prefix list PREFIXES.  MODE is passed to
/* Search for NAME using the prefix list PREFIXES.  MODE is passed to
   access to check permissions.  If DO_MULTI is true, search multilib
   access to check permissions.  If DO_MULTI is true, search multilib
   paths then non-multilib paths, otherwise do not search multilib paths.
   paths then non-multilib paths, otherwise do not search multilib paths.
   Return 0 if not found, otherwise return its name, allocated with malloc.  */
   Return 0 if not found, otherwise return its name, allocated with malloc.  */
 
 
static char *
static char *
find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
             bool do_multi)
             bool do_multi)
{
{
  struct file_at_path_info info;
  struct file_at_path_info info;
 
 
#ifdef DEFAULT_ASSEMBLER
#ifdef DEFAULT_ASSEMBLER
  if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
  if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
    return xstrdup (DEFAULT_ASSEMBLER);
    return xstrdup (DEFAULT_ASSEMBLER);
#endif
#endif
 
 
#ifdef DEFAULT_LINKER
#ifdef DEFAULT_LINKER
  if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
  if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
    return xstrdup (DEFAULT_LINKER);
    return xstrdup (DEFAULT_LINKER);
#endif
#endif
 
 
  /* Determine the filename to execute (special case for absolute paths).  */
  /* Determine the filename to execute (special case for absolute paths).  */
 
 
  if (IS_ABSOLUTE_PATH (name))
  if (IS_ABSOLUTE_PATH (name))
    {
    {
      if (access (name, mode) == 0)
      if (access (name, mode) == 0)
        return xstrdup (name);
        return xstrdup (name);
 
 
      return NULL;
      return NULL;
    }
    }
 
 
  info.name = name;
  info.name = name;
  info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
  info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
  info.name_len = strlen (info.name);
  info.name_len = strlen (info.name);
  info.suffix_len = strlen (info.suffix);
  info.suffix_len = strlen (info.suffix);
  info.mode = mode;
  info.mode = mode;
 
 
  return for_each_path (pprefix, do_multi, info.name_len + info.suffix_len,
  return for_each_path (pprefix, do_multi, info.name_len + info.suffix_len,
                        file_at_path, &info);
                        file_at_path, &info);
}
}
 
 
/* Ranking of prefixes in the sort list. -B prefixes are put before
/* Ranking of prefixes in the sort list. -B prefixes are put before
   all others.  */
   all others.  */
 
 
enum path_prefix_priority
enum path_prefix_priority
{
{
  PREFIX_PRIORITY_B_OPT,
  PREFIX_PRIORITY_B_OPT,
  PREFIX_PRIORITY_LAST
  PREFIX_PRIORITY_LAST
};
};
 
 
/* Add an entry for PREFIX in PLIST.  The PLIST is kept in ascending
/* Add an entry for PREFIX in PLIST.  The PLIST is kept in ascending
   order according to PRIORITY.  Within each PRIORITY, new entries are
   order according to PRIORITY.  Within each PRIORITY, new entries are
   appended.
   appended.
 
 
   If WARN is nonzero, we will warn if no file is found
   If WARN is nonzero, we will warn if no file is found
   through this prefix.  WARN should point to an int
   through this prefix.  WARN should point to an int
   which will be set to 1 if this entry is used.
   which will be set to 1 if this entry is used.
 
 
   COMPONENT is the value to be passed to update_path.
   COMPONENT is the value to be passed to update_path.
 
 
   REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
   REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
   the complete value of machine_suffix.
   the complete value of machine_suffix.
   2 means try both machine_suffix and just_machine_suffix.  */
   2 means try both machine_suffix and just_machine_suffix.  */
 
 
static void
static void
add_prefix (struct path_prefix *pprefix, const char *prefix,
add_prefix (struct path_prefix *pprefix, const char *prefix,
            const char *component, /* enum prefix_priority */ int priority,
            const char *component, /* enum prefix_priority */ int priority,
            int require_machine_suffix, int os_multilib)
            int require_machine_suffix, int os_multilib)
{
{
  struct prefix_list *pl, **prev;
  struct prefix_list *pl, **prev;
  int len;
  int len;
 
 
  for (prev = &pprefix->plist;
  for (prev = &pprefix->plist;
       (*prev) != NULL && (*prev)->priority <= priority;
       (*prev) != NULL && (*prev)->priority <= priority;
       prev = &(*prev)->next)
       prev = &(*prev)->next)
    ;
    ;
 
 
  /* Keep track of the longest prefix.  */
  /* Keep track of the longest prefix.  */
 
 
  prefix = update_path (prefix, component);
  prefix = update_path (prefix, component);
  len = strlen (prefix);
  len = strlen (prefix);
  if (len > pprefix->max_len)
  if (len > pprefix->max_len)
    pprefix->max_len = len;
    pprefix->max_len = len;
 
 
  pl = XNEW (struct prefix_list);
  pl = XNEW (struct prefix_list);
  pl->prefix = prefix;
  pl->prefix = prefix;
  pl->require_machine_suffix = require_machine_suffix;
  pl->require_machine_suffix = require_machine_suffix;
  pl->priority = priority;
  pl->priority = priority;
  pl->os_multilib = os_multilib;
  pl->os_multilib = os_multilib;
 
 
  /* Insert after PREV.  */
  /* Insert after PREV.  */
  pl->next = (*prev);
  pl->next = (*prev);
  (*prev) = pl;
  (*prev) = pl;
}
}
 
 
/* Same as add_prefix, but prepending target_system_root to prefix.  */
/* Same as add_prefix, but prepending target_system_root to prefix.  */
static void
static void
add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
                      const char *component,
                      const char *component,
                      /* enum prefix_priority */ int priority,
                      /* enum prefix_priority */ int priority,
                      int require_machine_suffix, int os_multilib)
                      int require_machine_suffix, int os_multilib)
{
{
  if (!IS_ABSOLUTE_PATH (prefix))
  if (!IS_ABSOLUTE_PATH (prefix))
    fatal ("system path '%s' is not absolute", prefix);
    fatal ("system path '%s' is not absolute", prefix);
 
 
  if (target_system_root)
  if (target_system_root)
    {
    {
      if (target_sysroot_suffix)
      if (target_sysroot_suffix)
          prefix = concat (target_sysroot_suffix, prefix, NULL);
          prefix = concat (target_sysroot_suffix, prefix, NULL);
      prefix = concat (target_system_root, prefix, NULL);
      prefix = concat (target_system_root, prefix, NULL);
 
 
      /* We have to override this because GCC's notion of sysroot
      /* We have to override this because GCC's notion of sysroot
         moves along with GCC.  */
         moves along with GCC.  */
      component = "GCC";
      component = "GCC";
    }
    }
 
 
  add_prefix (pprefix, prefix, component, priority,
  add_prefix (pprefix, prefix, component, priority,
              require_machine_suffix, os_multilib);
              require_machine_suffix, os_multilib);
}
}


/* Execute the command specified by the arguments on the current line of spec.
/* Execute the command specified by the arguments on the current line of spec.
   When using pipes, this includes several piped-together commands
   When using pipes, this includes several piped-together commands
   with `|' between them.
   with `|' between them.
 
 
   Return 0 if successful, -1 if failed.  */
   Return 0 if successful, -1 if failed.  */
 
 
static int
static int
execute (void)
execute (void)
{
{
  int i;
  int i;
  int n_commands;               /* # of command.  */
  int n_commands;               /* # of command.  */
  char *string;
  char *string;
  struct pex_obj *pex;
  struct pex_obj *pex;
  struct command
  struct command
  {
  {
    const char *prog;           /* program name.  */
    const char *prog;           /* program name.  */
    const char **argv;          /* vector of args.  */
    const char **argv;          /* vector of args.  */
  };
  };
 
 
  struct command *commands;     /* each command buffer with above info.  */
  struct command *commands;     /* each command buffer with above info.  */
 
 
  gcc_assert (!processing_spec_function);
  gcc_assert (!processing_spec_function);
 
 
  /* Count # of piped commands.  */
  /* Count # of piped commands.  */
  for (n_commands = 1, i = 0; i < argbuf_index; i++)
  for (n_commands = 1, i = 0; i < argbuf_index; i++)
    if (strcmp (argbuf[i], "|") == 0)
    if (strcmp (argbuf[i], "|") == 0)
      n_commands++;
      n_commands++;
 
 
  /* Get storage for each command.  */
  /* Get storage for each command.  */
  commands = alloca (n_commands * sizeof (struct command));
  commands = alloca (n_commands * sizeof (struct command));
 
 
  /* Split argbuf into its separate piped processes,
  /* Split argbuf into its separate piped processes,
     and record info about each one.
     and record info about each one.
     Also search for the programs that are to be run.  */
     Also search for the programs that are to be run.  */
 
 
  commands[0].prog = argbuf[0]; /* first command.  */
  commands[0].prog = argbuf[0]; /* first command.  */
  commands[0].argv = &argbuf[0];
  commands[0].argv = &argbuf[0];
  string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
  string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
 
 
  if (string)
  if (string)
    commands[0].argv[0] = string;
    commands[0].argv[0] = string;
 
 
  for (n_commands = 1, i = 0; i < argbuf_index; i++)
  for (n_commands = 1, i = 0; i < argbuf_index; i++)
    if (strcmp (argbuf[i], "|") == 0)
    if (strcmp (argbuf[i], "|") == 0)
      {                         /* each command.  */
      {                         /* each command.  */
#if defined (__MSDOS__) || defined (OS2) || defined (VMS)
#if defined (__MSDOS__) || defined (OS2) || defined (VMS)
        fatal ("-pipe not supported");
        fatal ("-pipe not supported");
#endif
#endif
        argbuf[i] = 0;   /* termination of command args.  */
        argbuf[i] = 0;   /* termination of command args.  */
        commands[n_commands].prog = argbuf[i + 1];
        commands[n_commands].prog = argbuf[i + 1];
        commands[n_commands].argv = &argbuf[i + 1];
        commands[n_commands].argv = &argbuf[i + 1];
        string = find_a_file (&exec_prefixes, commands[n_commands].prog,
        string = find_a_file (&exec_prefixes, commands[n_commands].prog,
                              X_OK, false);
                              X_OK, false);
        if (string)
        if (string)
          commands[n_commands].argv[0] = string;
          commands[n_commands].argv[0] = string;
        n_commands++;
        n_commands++;
      }
      }
 
 
  argbuf[argbuf_index] = 0;
  argbuf[argbuf_index] = 0;
 
 
  /* If -v, print what we are about to do, and maybe query.  */
  /* If -v, print what we are about to do, and maybe query.  */
 
 
  if (verbose_flag)
  if (verbose_flag)
    {
    {
      /* For help listings, put a blank line between sub-processes.  */
      /* For help listings, put a blank line between sub-processes.  */
      if (print_help_list)
      if (print_help_list)
        fputc ('\n', stderr);
        fputc ('\n', stderr);
 
 
      /* Print each piped command as a separate line.  */
      /* Print each piped command as a separate line.  */
      for (i = 0; i < n_commands; i++)
      for (i = 0; i < n_commands; i++)
        {
        {
          const char *const *j;
          const char *const *j;
 
 
          if (verbose_only_flag)
          if (verbose_only_flag)
            {
            {
              for (j = commands[i].argv; *j; j++)
              for (j = commands[i].argv; *j; j++)
                {
                {
                  const char *p;
                  const char *p;
                  fprintf (stderr, " \"");
                  fprintf (stderr, " \"");
                  for (p = *j; *p; ++p)
                  for (p = *j; *p; ++p)
                    {
                    {
                      if (*p == '"' || *p == '\\' || *p == '$')
                      if (*p == '"' || *p == '\\' || *p == '$')
                        fputc ('\\', stderr);
                        fputc ('\\', stderr);
                      fputc (*p, stderr);
                      fputc (*p, stderr);
                    }
                    }
                  fputc ('"', stderr);
                  fputc ('"', stderr);
                }
                }
            }
            }
          else
          else
            for (j = commands[i].argv; *j; j++)
            for (j = commands[i].argv; *j; j++)
              fprintf (stderr, " %s", *j);
              fprintf (stderr, " %s", *j);
 
 
          /* Print a pipe symbol after all but the last command.  */
          /* Print a pipe symbol after all but the last command.  */
          if (i + 1 != n_commands)
          if (i + 1 != n_commands)
            fprintf (stderr, " |");
            fprintf (stderr, " |");
          fprintf (stderr, "\n");
          fprintf (stderr, "\n");
        }
        }
      fflush (stderr);
      fflush (stderr);
      if (verbose_only_flag != 0)
      if (verbose_only_flag != 0)
        {
        {
          /* verbose_only_flag should act as if the spec was
          /* verbose_only_flag should act as if the spec was
             executed, so increment execution_count before
             executed, so increment execution_count before
             returning.  This prevents spurious warnings about
             returning.  This prevents spurious warnings about
             unused linker input files, etc.  */
             unused linker input files, etc.  */
          execution_count++;
          execution_count++;
          return 0;
          return 0;
        }
        }
#ifdef DEBUG
#ifdef DEBUG
      notice ("\nGo ahead? (y or n) ");
      notice ("\nGo ahead? (y or n) ");
      fflush (stderr);
      fflush (stderr);
      i = getchar ();
      i = getchar ();
      if (i != '\n')
      if (i != '\n')
        while (getchar () != '\n')
        while (getchar () != '\n')
          ;
          ;
 
 
      if (i != 'y' && i != 'Y')
      if (i != 'y' && i != 'Y')
        return 0;
        return 0;
#endif /* DEBUG */
#endif /* DEBUG */
    }
    }
 
 
#ifdef ENABLE_VALGRIND_CHECKING
#ifdef ENABLE_VALGRIND_CHECKING
  /* Run the each command through valgrind.  To simplify prepending the
  /* Run the each command through valgrind.  To simplify prepending the
     path to valgrind and the option "-q" (for quiet operation unless
     path to valgrind and the option "-q" (for quiet operation unless
     something triggers), we allocate a separate argv array.  */
     something triggers), we allocate a separate argv array.  */
 
 
  for (i = 0; i < n_commands; i++)
  for (i = 0; i < n_commands; i++)
    {
    {
      const char **argv;
      const char **argv;
      int argc;
      int argc;
      int j;
      int j;
 
 
      for (argc = 0; commands[i].argv[argc] != NULL; argc++)
      for (argc = 0; commands[i].argv[argc] != NULL; argc++)
        ;
        ;
 
 
      argv = alloca ((argc + 3) * sizeof (char *));
      argv = alloca ((argc + 3) * sizeof (char *));
 
 
      argv[0] = VALGRIND_PATH;
      argv[0] = VALGRIND_PATH;
      argv[1] = "-q";
      argv[1] = "-q";
      for (j = 2; j < argc + 2; j++)
      for (j = 2; j < argc + 2; j++)
        argv[j] = commands[i].argv[j - 2];
        argv[j] = commands[i].argv[j - 2];
      argv[j] = NULL;
      argv[j] = NULL;
 
 
      commands[i].argv = argv;
      commands[i].argv = argv;
      commands[i].prog = argv[0];
      commands[i].prog = argv[0];
    }
    }
#endif
#endif
 
 
  /* Run each piped subprocess.  */
  /* Run each piped subprocess.  */
 
 
  pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
  pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
                  programname, temp_filename);
                  programname, temp_filename);
  if (pex == NULL)
  if (pex == NULL)
    pfatal_with_name (_("pex_init failed"));
    pfatal_with_name (_("pex_init failed"));
 
 
  for (i = 0; i < n_commands; i++)
  for (i = 0; i < n_commands; i++)
    {
    {
      const char *errmsg;
      const char *errmsg;
      int err;
      int err;
      const char *string = commands[i].argv[0];
      const char *string = commands[i].argv[0];
 
 
      errmsg = pex_run (pex,
      errmsg = pex_run (pex,
                        ((i + 1 == n_commands ? PEX_LAST : 0)
                        ((i + 1 == n_commands ? PEX_LAST : 0)
                         | (string == commands[i].prog ? PEX_SEARCH : 0)),
                         | (string == commands[i].prog ? PEX_SEARCH : 0)),
                        string, (char * const *) commands[i].argv,
                        string, (char * const *) commands[i].argv,
                        NULL, NULL, &err);
                        NULL, NULL, &err);
      if (errmsg != NULL)
      if (errmsg != NULL)
        {
        {
          if (err == 0)
          if (err == 0)
            fatal (errmsg);
            fatal (errmsg);
          else
          else
            {
            {
              errno = err;
              errno = err;
              pfatal_with_name (errmsg);
              pfatal_with_name (errmsg);
            }
            }
        }
        }
 
 
      if (string != commands[i].prog)
      if (string != commands[i].prog)
        free ((void *) string);
        free ((void *) string);
    }
    }
 
 
  execution_count++;
  execution_count++;
 
 
  /* Wait for all the subprocesses to finish.  */
  /* Wait for all the subprocesses to finish.  */
 
 
  {
  {
    int *statuses;
    int *statuses;
    struct pex_time *times = NULL;
    struct pex_time *times = NULL;
    int ret_code = 0;
    int ret_code = 0;
 
 
    statuses = alloca (n_commands * sizeof (int));
    statuses = alloca (n_commands * sizeof (int));
    if (!pex_get_status (pex, n_commands, statuses))
    if (!pex_get_status (pex, n_commands, statuses))
      pfatal_with_name (_("failed to get exit status"));
      pfatal_with_name (_("failed to get exit status"));
 
 
    if (report_times)
    if (report_times)
      {
      {
        times = alloca (n_commands * sizeof (struct pex_time));
        times = alloca (n_commands * sizeof (struct pex_time));
        if (!pex_get_times (pex, n_commands, times))
        if (!pex_get_times (pex, n_commands, times))
          pfatal_with_name (_("failed to get process times"));
          pfatal_with_name (_("failed to get process times"));
      }
      }
 
 
    pex_free (pex);
    pex_free (pex);
 
 
    for (i = 0; i < n_commands; ++i)
    for (i = 0; i < n_commands; ++i)
      {
      {
        int status = statuses[i];
        int status = statuses[i];
 
 
        if (WIFSIGNALED (status))
        if (WIFSIGNALED (status))
          {
          {
#ifdef SIGPIPE
#ifdef SIGPIPE
            /* SIGPIPE is a special case.  It happens in -pipe mode
            /* SIGPIPE is a special case.  It happens in -pipe mode
               when the compiler dies before the preprocessor is done,
               when the compiler dies before the preprocessor is done,
               or the assembler dies before the compiler is done.
               or the assembler dies before the compiler is done.
               There's generally been an error already, and this is
               There's generally been an error already, and this is
               just fallout.  So don't generate another error unless
               just fallout.  So don't generate another error unless
               we would otherwise have succeeded.  */
               we would otherwise have succeeded.  */
            if (WTERMSIG (status) == SIGPIPE
            if (WTERMSIG (status) == SIGPIPE
                && (signal_count || greatest_status >= MIN_FATAL_STATUS))
                && (signal_count || greatest_status >= MIN_FATAL_STATUS))
              {
              {
                signal_count++;
                signal_count++;
                ret_code = -1;
                ret_code = -1;
              }
              }
            else
            else
#endif
#endif
              fatal_ice ("\
              fatal_ice ("\
Internal error: %s (program %s)\n\
Internal error: %s (program %s)\n\
Please submit a full bug report.\n\
Please submit a full bug report.\n\
See %s for instructions.",
See %s for instructions.",
                        strsignal (WTERMSIG (status)), commands[i].prog,
                        strsignal (WTERMSIG (status)), commands[i].prog,
                        bug_report_url);
                        bug_report_url);
          }
          }
        else if (WIFEXITED (status)
        else if (WIFEXITED (status)
                 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
                 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
          {
          {
            if (WEXITSTATUS (status) > greatest_status)
            if (WEXITSTATUS (status) > greatest_status)
              greatest_status = WEXITSTATUS (status);
              greatest_status = WEXITSTATUS (status);
            ret_code = -1;
            ret_code = -1;
          }
          }
 
 
        if (report_times)
        if (report_times)
          {
          {
            struct pex_time *pt = &times[i];
            struct pex_time *pt = &times[i];
            double ut, st;
            double ut, st;
 
 
            ut = ((double) pt->user_seconds
            ut = ((double) pt->user_seconds
                  + (double) pt->user_microseconds / 1.0e6);
                  + (double) pt->user_microseconds / 1.0e6);
            st = ((double) pt->system_seconds
            st = ((double) pt->system_seconds
                  + (double) pt->system_microseconds / 1.0e6);
                  + (double) pt->system_microseconds / 1.0e6);
 
 
            if (ut + st != 0)
            if (ut + st != 0)
              notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
              notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
          }
          }
      }
      }
 
 
    return ret_code;
    return ret_code;
  }
  }
}
}


/* Find all the switches given to us
/* Find all the switches given to us
   and make a vector describing them.
   and make a vector describing them.
   The elements of the vector are strings, one per switch given.
   The elements of the vector are strings, one per switch given.
   If a switch uses following arguments, then the `part1' field
   If a switch uses following arguments, then the `part1' field
   is the switch itself and the `args' field
   is the switch itself and the `args' field
   is a null-terminated vector containing the following arguments.
   is a null-terminated vector containing the following arguments.
   The `live_cond' field is:
   The `live_cond' field is:
   0 when initialized
   0 when initialized
   1 if the switch is true in a conditional spec,
   1 if the switch is true in a conditional spec,
   -1 if false (overridden by a later switch)
   -1 if false (overridden by a later switch)
   -2 if this switch should be ignored (used in %<S)
   -2 if this switch should be ignored (used in %<S)
   The `validated' field is nonzero if any spec has looked at this switch;
   The `validated' field is nonzero if any spec has looked at this switch;
   if it remains zero at the end of the run, it must be meaningless.  */
   if it remains zero at the end of the run, it must be meaningless.  */
 
 
#define SWITCH_OK       0
#define SWITCH_OK       0
#define SWITCH_FALSE   -1
#define SWITCH_FALSE   -1
#define SWITCH_IGNORE  -2
#define SWITCH_IGNORE  -2
#define SWITCH_LIVE     1
#define SWITCH_LIVE     1
 
 
struct switchstr
struct switchstr
{
{
  const char *part1;
  const char *part1;
  const char **args;
  const char **args;
  int live_cond;
  int live_cond;
  unsigned char validated;
  unsigned char validated;
  unsigned char ordering;
  unsigned char ordering;
};
};
 
 
static struct switchstr *switches;
static struct switchstr *switches;
 
 
static int n_switches;
static int n_switches;
 
 
/* Language is one of three things:
/* Language is one of three things:
 
 
   1) The name of a real programming language.
   1) The name of a real programming language.
   2) NULL, indicating that no one has figured out
   2) NULL, indicating that no one has figured out
   what it is yet.
   what it is yet.
   3) '*', indicating that the file should be passed
   3) '*', indicating that the file should be passed
   to the linker.  */
   to the linker.  */
struct infile
struct infile
{
{
  const char *name;
  const char *name;
  const char *language;
  const char *language;
  struct compiler *incompiler;
  struct compiler *incompiler;
  bool compiled;
  bool compiled;
  bool preprocessed;
  bool preprocessed;
};
};
 
 
/* Also a vector of input files specified.  */
/* Also a vector of input files specified.  */
 
 
static struct infile *infiles;
static struct infile *infiles;
 
 
int n_infiles;
int n_infiles;
 
 
/* True if multiple input files are being compiled to a single
/* True if multiple input files are being compiled to a single
   assembly file.  */
   assembly file.  */
 
 
static bool combine_inputs;
static bool combine_inputs;
 
 
/* This counts the number of libraries added by lang_specific_driver, so that
/* This counts the number of libraries added by lang_specific_driver, so that
   we can tell if there were any user supplied any files or libraries.  */
   we can tell if there were any user supplied any files or libraries.  */
 
 
static int added_libraries;
static int added_libraries;
 
 
/* And a vector of corresponding output files is made up later.  */
/* And a vector of corresponding output files is made up later.  */
 
 
const char **outfiles;
const char **outfiles;


#if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
#if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
 
 
/* Convert NAME to a new name if it is the standard suffix.  DO_EXE
/* Convert NAME to a new name if it is the standard suffix.  DO_EXE
   is true if we should look for an executable suffix.  DO_OBJ
   is true if we should look for an executable suffix.  DO_OBJ
   is true if we should look for an object suffix.  */
   is true if we should look for an object suffix.  */
 
 
static const char *
static const char *
convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
                  int do_obj ATTRIBUTE_UNUSED)
                  int do_obj ATTRIBUTE_UNUSED)
{
{
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
  int i;
  int i;
#endif
#endif
  int len;
  int len;
 
 
  if (name == NULL)
  if (name == NULL)
    return NULL;
    return NULL;
 
 
  len = strlen (name);
  len = strlen (name);
 
 
#ifdef HAVE_TARGET_OBJECT_SUFFIX
#ifdef HAVE_TARGET_OBJECT_SUFFIX
  /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj".  */
  /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj".  */
  if (do_obj && len > 2
  if (do_obj && len > 2
      && name[len - 2] == '.'
      && name[len - 2] == '.'
      && name[len - 1] == 'o')
      && name[len - 1] == 'o')
    {
    {
      obstack_grow (&obstack, name, len - 2);
      obstack_grow (&obstack, name, len - 2);
      obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
      obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
      name = XOBFINISH (&obstack, const char *);
      name = XOBFINISH (&obstack, const char *);
    }
    }
#endif
#endif
 
 
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
  /* If there is no filetype, make it the executable suffix (which includes
  /* If there is no filetype, make it the executable suffix (which includes
     the ".").  But don't get confused if we have just "-o".  */
     the ".").  But don't get confused if we have just "-o".  */
  if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
  if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
    return name;
    return name;
 
 
  for (i = len - 1; i >= 0; i--)
  for (i = len - 1; i >= 0; i--)
    if (IS_DIR_SEPARATOR (name[i]))
    if (IS_DIR_SEPARATOR (name[i]))
      break;
      break;
 
 
  for (i++; i < len; i++)
  for (i++; i < len; i++)
    if (name[i] == '.')
    if (name[i] == '.')
      return name;
      return name;
 
 
  obstack_grow (&obstack, name, len);
  obstack_grow (&obstack, name, len);
  obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
  obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
                 strlen (TARGET_EXECUTABLE_SUFFIX));
                 strlen (TARGET_EXECUTABLE_SUFFIX));
  name = XOBFINISH (&obstack, const char *);
  name = XOBFINISH (&obstack, const char *);
#endif
#endif
 
 
  return name;
  return name;
}
}
#endif
#endif


/* Display the command line switches accepted by gcc.  */
/* Display the command line switches accepted by gcc.  */
static void
static void
display_help (void)
display_help (void)
{
{
  printf (_("Usage: %s [options] file...\n"), programname);
  printf (_("Usage: %s [options] file...\n"), programname);
  fputs (_("Options:\n"), stdout);
  fputs (_("Options:\n"), stdout);
 
 
  fputs (_("  -pass-exit-codes         Exit with highest error code from a phase\n"), stdout);
  fputs (_("  -pass-exit-codes         Exit with highest error code from a phase\n"), stdout);
  fputs (_("  --help                   Display this information\n"), stdout);
  fputs (_("  --help                   Display this information\n"), stdout);
  fputs (_("  --target-help            Display target specific command line options\n"), stdout);
  fputs (_("  --target-help            Display target specific command line options\n"), stdout);
  if (! verbose_flag)
  if (! verbose_flag)
    fputs (_("  (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
    fputs (_("  (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
  fputs (_("  -dumpspecs               Display all of the built in spec strings\n"), stdout);
  fputs (_("  -dumpspecs               Display all of the built in spec strings\n"), stdout);
  fputs (_("  -dumpversion             Display the version of the compiler\n"), stdout);
  fputs (_("  -dumpversion             Display the version of the compiler\n"), stdout);
  fputs (_("  -dumpmachine             Display the compiler's target processor\n"), stdout);
  fputs (_("  -dumpmachine             Display the compiler's target processor\n"), stdout);
  fputs (_("  -print-search-dirs       Display the directories in the compiler's search path\n"), stdout);
  fputs (_("  -print-search-dirs       Display the directories in the compiler's search path\n"), stdout);
  fputs (_("  -print-libgcc-file-name  Display the name of the compiler's companion library\n"), stdout);
  fputs (_("  -print-libgcc-file-name  Display the name of the compiler's companion library\n"), stdout);
  fputs (_("  -print-file-name=<lib>   Display the full path to library <lib>\n"), stdout);
  fputs (_("  -print-file-name=<lib>   Display the full path to library <lib>\n"), stdout);
  fputs (_("  -print-prog-name=<prog>  Display the full path to compiler component <prog>\n"), stdout);
  fputs (_("  -print-prog-name=<prog>  Display the full path to compiler component <prog>\n"), stdout);
  fputs (_("  -print-multi-directory   Display the root directory for versions of libgcc\n"), stdout);
  fputs (_("  -print-multi-directory   Display the root directory for versions of libgcc\n"), stdout);
  fputs (_("\
  fputs (_("\
  -print-multi-lib         Display the mapping between command line options and\n\
  -print-multi-lib         Display the mapping between command line options and\n\
                           multiple library search directories\n"), stdout);
                           multiple library search directories\n"), stdout);
  fputs (_("  -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
  fputs (_("  -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
  fputs (_("  -Wa,<options>            Pass comma-separated <options> on to the assembler\n"), stdout);
  fputs (_("  -Wa,<options>            Pass comma-separated <options> on to the assembler\n"), stdout);
  fputs (_("  -Wp,<options>            Pass comma-separated <options> on to the preprocessor\n"), stdout);
  fputs (_("  -Wp,<options>            Pass comma-separated <options> on to the preprocessor\n"), stdout);
  fputs (_("  -Wl,<options>            Pass comma-separated <options> on to the linker\n"), stdout);
  fputs (_("  -Wl,<options>            Pass comma-separated <options> on to the linker\n"), stdout);
  fputs (_("  -Xassembler <arg>        Pass <arg> on to the assembler\n"), stdout);
  fputs (_("  -Xassembler <arg>        Pass <arg> on to the assembler\n"), stdout);
  fputs (_("  -Xpreprocessor <arg>     Pass <arg> on to the preprocessor\n"), stdout);
  fputs (_("  -Xpreprocessor <arg>     Pass <arg> on to the preprocessor\n"), stdout);
  fputs (_("  -Xlinker <arg>           Pass <arg> on to the linker\n"), stdout);
  fputs (_("  -Xlinker <arg>           Pass <arg> on to the linker\n"), stdout);
  fputs (_("  -combine                 Pass multiple source files to compiler at once\n"), stdout);
  fputs (_("  -combine                 Pass multiple source files to compiler at once\n"), stdout);
  fputs (_("  -save-temps              Do not delete intermediate files\n"), stdout);
  fputs (_("  -save-temps              Do not delete intermediate files\n"), stdout);
  fputs (_("  -pipe                    Use pipes rather than intermediate files\n"), stdout);
  fputs (_("  -pipe                    Use pipes rather than intermediate files\n"), stdout);
  fputs (_("  -time                    Time the execution of each subprocess\n"), stdout);
  fputs (_("  -time                    Time the execution of each subprocess\n"), stdout);
  fputs (_("  -specs=<file>            Override built-in specs with the contents of <file>\n"), stdout);
  fputs (_("  -specs=<file>            Override built-in specs with the contents of <file>\n"), stdout);
  fputs (_("  -std=<standard>          Assume that the input sources are for <standard>\n"), stdout);
  fputs (_("  -std=<standard>          Assume that the input sources are for <standard>\n"), stdout);
  fputs (_("\
  fputs (_("\
  --sysroot=<directory>    Use <directory> as the root directory for headers\n\
  --sysroot=<directory>    Use <directory> as the root directory for headers\n\
                           and libraries\n"), stdout);
                           and libraries\n"), stdout);
  fputs (_("  -B <directory>           Add <directory> to the compiler's search paths\n"), stdout);
  fputs (_("  -B <directory>           Add <directory> to the compiler's search paths\n"), stdout);
  fputs (_("  -b <machine>             Run gcc for target <machine>, if installed\n"), stdout);
  fputs (_("  -b <machine>             Run gcc for target <machine>, if installed\n"), stdout);
  fputs (_("  -V <version>             Run gcc version number <version>, if installed\n"), stdout);
  fputs (_("  -V <version>             Run gcc version number <version>, if installed\n"), stdout);
  fputs (_("  -v                       Display the programs invoked by the compiler\n"), stdout);
  fputs (_("  -v                       Display the programs invoked by the compiler\n"), stdout);
  fputs (_("  -###                     Like -v but options quoted and commands not executed\n"), stdout);
  fputs (_("  -###                     Like -v but options quoted and commands not executed\n"), stdout);
  fputs (_("  -E                       Preprocess only; do not compile, assemble or link\n"), stdout);
  fputs (_("  -E                       Preprocess only; do not compile, assemble or link\n"), stdout);
  fputs (_("  -S                       Compile only; do not assemble or link\n"), stdout);
  fputs (_("  -S                       Compile only; do not assemble or link\n"), stdout);
  fputs (_("  -c                       Compile and assemble, but do not link\n"), stdout);
  fputs (_("  -c                       Compile and assemble, but do not link\n"), stdout);
  fputs (_("  -o <file>                Place the output into <file>\n"), stdout);
  fputs (_("  -o <file>                Place the output into <file>\n"), stdout);
  fputs (_("\
  fputs (_("\
  -x <language>            Specify the language of the following input files\n\
  -x <language>            Specify the language of the following input files\n\
                           Permissible languages include: c c++ assembler none\n\
                           Permissible languages include: c c++ assembler none\n\
                           'none' means revert to the default behavior of\n\
                           'none' means revert to the default behavior of\n\
                           guessing the language based on the file's extension\n\
                           guessing the language based on the file's extension\n\
"), stdout);
"), stdout);
 
 
  printf (_("\
  printf (_("\
\nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
\nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
 passed on to the various sub-processes invoked by %s.  In order to pass\n\
 passed on to the various sub-processes invoked by %s.  In order to pass\n\
 other options on to these processes the -W<letter> options must be used.\n\
 other options on to these processes the -W<letter> options must be used.\n\
"), programname);
"), programname);
 
 
  /* The rest of the options are displayed by invocations of the various
  /* The rest of the options are displayed by invocations of the various
     sub-processes.  */
     sub-processes.  */
}
}
 
 
static void
static void
add_preprocessor_option (const char *option, int len)
add_preprocessor_option (const char *option, int len)
{
{
  n_preprocessor_options++;
  n_preprocessor_options++;
 
 
  if (! preprocessor_options)
  if (! preprocessor_options)
    preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
    preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
  else
  else
    preprocessor_options = xrealloc (preprocessor_options,
    preprocessor_options = xrealloc (preprocessor_options,
                                     n_preprocessor_options * sizeof (char *));
                                     n_preprocessor_options * sizeof (char *));
 
 
  preprocessor_options [n_preprocessor_options - 1] =
  preprocessor_options [n_preprocessor_options - 1] =
    save_string (option, len);
    save_string (option, len);
}
}
 
 
static void
static void
add_assembler_option (const char *option, int len)
add_assembler_option (const char *option, int len)
{
{
  n_assembler_options++;
  n_assembler_options++;
 
 
  if (! assembler_options)
  if (! assembler_options)
    assembler_options = XNEWVEC (char *, n_assembler_options);
    assembler_options = XNEWVEC (char *, n_assembler_options);
  else
  else
    assembler_options = xrealloc (assembler_options,
    assembler_options = xrealloc (assembler_options,
                                  n_assembler_options * sizeof (char *));
                                  n_assembler_options * sizeof (char *));
 
 
  assembler_options [n_assembler_options - 1] = save_string (option, len);
  assembler_options [n_assembler_options - 1] = save_string (option, len);
}
}
 
 
static void
static void
add_linker_option (const char *option, int len)
add_linker_option (const char *option, int len)
{
{
  n_linker_options++;
  n_linker_options++;
 
 
  if (! linker_options)
  if (! linker_options)
    linker_options = XNEWVEC (char *, n_linker_options);
    linker_options = XNEWVEC (char *, n_linker_options);
  else
  else
    linker_options = xrealloc (linker_options,
    linker_options = xrealloc (linker_options,
                               n_linker_options * sizeof (char *));
                               n_linker_options * sizeof (char *));
 
 
  linker_options [n_linker_options - 1] = save_string (option, len);
  linker_options [n_linker_options - 1] = save_string (option, len);
}
}


/* Create the vector `switches' and its contents.
/* Create the vector `switches' and its contents.
   Store its length in `n_switches'.  */
   Store its length in `n_switches'.  */
 
 
static void
static void
process_command (int argc, const char **argv)
process_command (int argc, const char **argv)
{
{
  int i;
  int i;
  const char *temp;
  const char *temp;
  char *temp1;
  char *temp1;
  const char *spec_lang = 0;
  const char *spec_lang = 0;
  int last_language_n_infiles;
  int last_language_n_infiles;
  int lang_n_infiles = 0;
  int lang_n_infiles = 0;
#ifdef MODIFY_TARGET_NAME
#ifdef MODIFY_TARGET_NAME
  int is_modify_target_name;
  int is_modify_target_name;
  unsigned int j;
  unsigned int j;
#endif
#endif
 
 
  GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
  GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
 
 
  n_switches = 0;
  n_switches = 0;
  n_infiles = 0;
  n_infiles = 0;
  added_libraries = 0;
  added_libraries = 0;
 
 
  /* Figure compiler version from version string.  */
  /* Figure compiler version from version string.  */
 
 
  compiler_version = temp1 = xstrdup (version_string);
  compiler_version = temp1 = xstrdup (version_string);
 
 
  for (; *temp1; ++temp1)
  for (; *temp1; ++temp1)
    {
    {
      if (*temp1 == ' ')
      if (*temp1 == ' ')
        {
        {
          *temp1 = '\0';
          *temp1 = '\0';
          break;
          break;
        }
        }
    }
    }
 
 
  /* If there is a -V or -b option (or both), process it now, before
  /* If there is a -V or -b option (or both), process it now, before
     trying to interpret the rest of the command line.
     trying to interpret the rest of the command line.
     Use heuristic that all configuration names must have at least
     Use heuristic that all configuration names must have at least
     one dash '-'. This allows us to pass options starting with -b.  */
     one dash '-'. This allows us to pass options starting with -b.  */
  if (argc > 1 && argv[1][0] == '-'
  if (argc > 1 && argv[1][0] == '-'
      && (argv[1][1] == 'V' ||
      && (argv[1][1] == 'V' ||
         ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
         ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
    {
    {
      const char *new_version = DEFAULT_TARGET_VERSION;
      const char *new_version = DEFAULT_TARGET_VERSION;
      const char *new_machine = DEFAULT_TARGET_MACHINE;
      const char *new_machine = DEFAULT_TARGET_MACHINE;
      const char *progname = argv[0];
      const char *progname = argv[0];
      char **new_argv;
      char **new_argv;
      char *new_argv0;
      char *new_argv0;
      int baselen;
      int baselen;
 
 
      while (argc > 1 && argv[1][0] == '-'
      while (argc > 1 && argv[1][0] == '-'
             && (argv[1][1] == 'V' ||
             && (argv[1][1] == 'V' ||
                ((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
                ((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
        {
        {
          char opt = argv[1][1];
          char opt = argv[1][1];
          const char *arg;
          const char *arg;
          if (argv[1][2] != '\0')
          if (argv[1][2] != '\0')
            {
            {
              arg = argv[1] + 2;
              arg = argv[1] + 2;
              argc -= 1;
              argc -= 1;
              argv += 1;
              argv += 1;
            }
            }
          else if (argc > 2)
          else if (argc > 2)
            {
            {
              arg = argv[2];
              arg = argv[2];
              argc -= 2;
              argc -= 2;
              argv += 2;
              argv += 2;
            }
            }
          else
          else
            fatal ("'-%c' option must have argument", opt);
            fatal ("'-%c' option must have argument", opt);
          if (opt == 'V')
          if (opt == 'V')
            new_version = arg;
            new_version = arg;
          else
          else
            new_machine = arg;
            new_machine = arg;
        }
        }
 
 
      for (baselen = strlen (progname); baselen > 0; baselen--)
      for (baselen = strlen (progname); baselen > 0; baselen--)
        if (IS_DIR_SEPARATOR (progname[baselen-1]))
        if (IS_DIR_SEPARATOR (progname[baselen-1]))
          break;
          break;
      new_argv0 = xmemdup (progname, baselen,
      new_argv0 = xmemdup (progname, baselen,
                           baselen + concat_length (new_version, new_machine,
                           baselen + concat_length (new_version, new_machine,
                                                    "-gcc-", NULL) + 1);
                                                    "-gcc-", NULL) + 1);
      strcpy (new_argv0 + baselen, new_machine);
      strcpy (new_argv0 + baselen, new_machine);
      strcat (new_argv0, "-gcc-");
      strcat (new_argv0, "-gcc-");
      strcat (new_argv0, new_version);
      strcat (new_argv0, new_version);
 
 
      new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
      new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
                          (argc + 1) * sizeof (argv[0]));
                          (argc + 1) * sizeof (argv[0]));
      new_argv[0] = new_argv0;
      new_argv[0] = new_argv0;
 
 
      execvp (new_argv0, new_argv);
      execvp (new_argv0, new_argv);
      fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
      fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
    }
    }
 
 
  /* Set up the default search paths.  If there is no GCC_EXEC_PREFIX,
  /* Set up the default search paths.  If there is no GCC_EXEC_PREFIX,
     see if we can create it from the pathname specified in argv[0].  */
     see if we can create it from the pathname specified in argv[0].  */
 
 
  gcc_libexec_prefix = standard_libexec_prefix;
  gcc_libexec_prefix = standard_libexec_prefix;
#ifndef VMS
#ifndef VMS
  /* FIXME: make_relative_prefix doesn't yet work for VMS.  */
  /* FIXME: make_relative_prefix doesn't yet work for VMS.  */
  if (!gcc_exec_prefix)
  if (!gcc_exec_prefix)
    {
    {
      gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
      gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
                                              standard_exec_prefix);
                                              standard_exec_prefix);
      gcc_libexec_prefix = make_relative_prefix (argv[0],
      gcc_libexec_prefix = make_relative_prefix (argv[0],
                                                 standard_bindir_prefix,
                                                 standard_bindir_prefix,
                                                 standard_libexec_prefix);
                                                 standard_libexec_prefix);
      if (gcc_exec_prefix)
      if (gcc_exec_prefix)
        putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
        putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
    }
    }
  else
  else
    {
    {
      /* make_relative_prefix requires a program name, but
      /* make_relative_prefix requires a program name, but
         GCC_EXEC_PREFIX is typically a directory name with a trailing
         GCC_EXEC_PREFIX is typically a directory name with a trailing
         / (which is ignored by make_relative_prefix), so append a
         / (which is ignored by make_relative_prefix), so append a
         program name.  */
         program name.  */
      char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
      char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
      gcc_libexec_prefix = make_relative_prefix (tmp_prefix,
      gcc_libexec_prefix = make_relative_prefix (tmp_prefix,
                                                 standard_exec_prefix,
                                                 standard_exec_prefix,
                                                 standard_libexec_prefix);
                                                 standard_libexec_prefix);
      free (tmp_prefix);
      free (tmp_prefix);
    }
    }
#else
#else
#endif
#endif
 
 
  if (gcc_exec_prefix)
  if (gcc_exec_prefix)
    {
    {
      int len = strlen (gcc_exec_prefix);
      int len = strlen (gcc_exec_prefix);
 
 
      if (len > (int) sizeof ("/lib/gcc/") - 1
      if (len > (int) sizeof ("/lib/gcc/") - 1
          && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
          && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
        {
        {
          temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
          temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
          if (IS_DIR_SEPARATOR (*temp)
          if (IS_DIR_SEPARATOR (*temp)
              && strncmp (temp + 1, "lib", 3) == 0
              && strncmp (temp + 1, "lib", 3) == 0
              && IS_DIR_SEPARATOR (temp[4])
              && IS_DIR_SEPARATOR (temp[4])
              && strncmp (temp + 5, "gcc", 3) == 0)
              && strncmp (temp + 5, "gcc", 3) == 0)
            len -= sizeof ("/lib/gcc/") - 1;
            len -= sizeof ("/lib/gcc/") - 1;
        }
        }
 
 
      set_std_prefix (gcc_exec_prefix, len);
      set_std_prefix (gcc_exec_prefix, len);
      add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
      add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
                  PREFIX_PRIORITY_LAST, 0, 0);
                  PREFIX_PRIORITY_LAST, 0, 0);
      add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
      add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
                  PREFIX_PRIORITY_LAST, 0, 0);
                  PREFIX_PRIORITY_LAST, 0, 0);
    }
    }
 
 
  /* COMPILER_PATH and LIBRARY_PATH have values
  /* COMPILER_PATH and LIBRARY_PATH have values
     that are lists of directory names with colons.  */
     that are lists of directory names with colons.  */
 
 
  GET_ENVIRONMENT (temp, "COMPILER_PATH");
  GET_ENVIRONMENT (temp, "COMPILER_PATH");
  if (temp)
  if (temp)
    {
    {
      const char *startp, *endp;
      const char *startp, *endp;
      char *nstore = alloca (strlen (temp) + 3);
      char *nstore = alloca (strlen (temp) + 3);
 
 
      startp = endp = temp;
      startp = endp = temp;
      while (1)
      while (1)
        {
        {
          if (*endp == PATH_SEPARATOR || *endp == 0)
          if (*endp == PATH_SEPARATOR || *endp == 0)
            {
            {
              strncpy (nstore, startp, endp - startp);
              strncpy (nstore, startp, endp - startp);
              if (endp == startp)
              if (endp == startp)
                strcpy (nstore, concat (".", dir_separator_str, NULL));
                strcpy (nstore, concat (".", dir_separator_str, NULL));
              else if (!IS_DIR_SEPARATOR (endp[-1]))
              else if (!IS_DIR_SEPARATOR (endp[-1]))
                {
                {
                  nstore[endp - startp] = DIR_SEPARATOR;
                  nstore[endp - startp] = DIR_SEPARATOR;
                  nstore[endp - startp + 1] = 0;
                  nstore[endp - startp + 1] = 0;
                }
                }
              else
              else
                nstore[endp - startp] = 0;
                nstore[endp - startp] = 0;
              add_prefix (&exec_prefixes, nstore, 0,
              add_prefix (&exec_prefixes, nstore, 0,
                          PREFIX_PRIORITY_LAST, 0, 0);
                          PREFIX_PRIORITY_LAST, 0, 0);
              add_prefix (&include_prefixes, nstore, 0,
              add_prefix (&include_prefixes, nstore, 0,
                          PREFIX_PRIORITY_LAST, 0, 0);
                          PREFIX_PRIORITY_LAST, 0, 0);
              if (*endp == 0)
              if (*endp == 0)
                break;
                break;
              endp = startp = endp + 1;
              endp = startp = endp + 1;
            }
            }
          else
          else
            endp++;
            endp++;
        }
        }
    }
    }
 
 
  GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
  GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
  if (temp && *cross_compile == '0')
  if (temp && *cross_compile == '0')
    {
    {
      const char *startp, *endp;
      const char *startp, *endp;
      char *nstore = alloca (strlen (temp) + 3);
      char *nstore = alloca (strlen (temp) + 3);
 
 
      startp = endp = temp;
      startp = endp = temp;
      while (1)
      while (1)
        {
        {
          if (*endp == PATH_SEPARATOR || *endp == 0)
          if (*endp == PATH_SEPARATOR || *endp == 0)
            {
            {
              strncpy (nstore, startp, endp - startp);
              strncpy (nstore, startp, endp - startp);
              if (endp == startp)
              if (endp == startp)
                strcpy (nstore, concat (".", dir_separator_str, NULL));
                strcpy (nstore, concat (".", dir_separator_str, NULL));
              else if (!IS_DIR_SEPARATOR (endp[-1]))
              else if (!IS_DIR_SEPARATOR (endp[-1]))
                {
                {
                  nstore[endp - startp] = DIR_SEPARATOR;
                  nstore[endp - startp] = DIR_SEPARATOR;
                  nstore[endp - startp + 1] = 0;
                  nstore[endp - startp + 1] = 0;
                }
                }
              else
              else
                nstore[endp - startp] = 0;
                nstore[endp - startp] = 0;
              add_prefix (&startfile_prefixes, nstore, NULL,
              add_prefix (&startfile_prefixes, nstore, NULL,
                          PREFIX_PRIORITY_LAST, 0, 1);
                          PREFIX_PRIORITY_LAST, 0, 1);
              if (*endp == 0)
              if (*endp == 0)
                break;
                break;
              endp = startp = endp + 1;
              endp = startp = endp + 1;
            }
            }
          else
          else
            endp++;
            endp++;
        }
        }
    }
    }
 
 
  /* Use LPATH like LIBRARY_PATH (for the CMU build program).  */
  /* Use LPATH like LIBRARY_PATH (for the CMU build program).  */
  GET_ENVIRONMENT (temp, "LPATH");
  GET_ENVIRONMENT (temp, "LPATH");
  if (temp && *cross_compile == '0')
  if (temp && *cross_compile == '0')
    {
    {
      const char *startp, *endp;
      const char *startp, *endp;
      char *nstore = alloca (strlen (temp) + 3);
      char *nstore = alloca (strlen (temp) + 3);
 
 
      startp = endp = temp;
      startp = endp = temp;
      while (1)
      while (1)
        {
        {
          if (*endp == PATH_SEPARATOR || *endp == 0)
          if (*endp == PATH_SEPARATOR || *endp == 0)
            {
            {
              strncpy (nstore, startp, endp - startp);
              strncpy (nstore, startp, endp - startp);
              if (endp == startp)
              if (endp == startp)
                strcpy (nstore, concat (".", dir_separator_str, NULL));
                strcpy (nstore, concat (".", dir_separator_str, NULL));
              else if (!IS_DIR_SEPARATOR (endp[-1]))
              else if (!IS_DIR_SEPARATOR (endp[-1]))
                {
                {
                  nstore[endp - startp] = DIR_SEPARATOR;
                  nstore[endp - startp] = DIR_SEPARATOR;
                  nstore[endp - startp + 1] = 0;
                  nstore[endp - startp + 1] = 0;
                }
                }
              else
              else
                nstore[endp - startp] = 0;
                nstore[endp - startp] = 0;
              add_prefix (&startfile_prefixes, nstore, NULL,
              add_prefix (&startfile_prefixes, nstore, NULL,
                          PREFIX_PRIORITY_LAST, 0, 1);
                          PREFIX_PRIORITY_LAST, 0, 1);
              if (*endp == 0)
              if (*endp == 0)
                break;
                break;
              endp = startp = endp + 1;
              endp = startp = endp + 1;
            }
            }
          else
          else
            endp++;
            endp++;
        }
        }
    }
    }
 
 
  /* Convert new-style -- options to old-style.  */
  /* Convert new-style -- options to old-style.  */
  translate_options (&argc, (const char *const **) &argv);
  translate_options (&argc, (const char *const **) &argv);
 
 
  /* Do language-specific adjustment/addition of flags.  */
  /* Do language-specific adjustment/addition of flags.  */
  lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
  lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
 
 
  /* Scan argv twice.  Here, the first time, just count how many switches
  /* Scan argv twice.  Here, the first time, just count how many switches
     there will be in their vector, and how many input files in theirs.
     there will be in their vector, and how many input files in theirs.
     Here we also parse the switches that cc itself uses (e.g. -v).  */
     Here we also parse the switches that cc itself uses (e.g. -v).  */
 
 
  for (i = 1; i < argc; i++)
  for (i = 1; i < argc; i++)
    {
    {
      if (! strcmp (argv[i], "-dumpspecs"))
      if (! strcmp (argv[i], "-dumpspecs"))
        {
        {
          struct spec_list *sl;
          struct spec_list *sl;
          init_spec ();
          init_spec ();
          for (sl = specs; sl; sl = sl->next)
          for (sl = specs; sl; sl = sl->next)
            printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
            printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
          if (link_command_spec)
          if (link_command_spec)
            printf ("*link_command:\n%s\n\n", link_command_spec);
            printf ("*link_command:\n%s\n\n", link_command_spec);
          exit (0);
          exit (0);
        }
        }
      else if (! strcmp (argv[i], "-dumpversion"))
      else if (! strcmp (argv[i], "-dumpversion"))
        {
        {
          printf ("%s\n", spec_version);
          printf ("%s\n", spec_version);
          exit (0);
          exit (0);
        }
        }
      else if (! strcmp (argv[i], "-dumpmachine"))
      else if (! strcmp (argv[i], "-dumpmachine"))
        {
        {
          printf ("%s\n", spec_machine);
          printf ("%s\n", spec_machine);
          exit (0);
          exit (0);
        }
        }
      else if (strcmp (argv[i], "-fversion") == 0)
      else if (strcmp (argv[i], "-fversion") == 0)
        {
        {
          /* translate_options () has turned --version into -fversion.  */
          /* translate_options () has turned --version into -fversion.  */
          printf (_("%s (GCC) %s\n"), programname, version_string);
          printf (_("%s (GCC) %s\n"), programname, version_string);
          printf ("Copyright %s 2007 Free Software Foundation, Inc.\n",
          printf ("Copyright %s 2007 Free Software Foundation, Inc.\n",
                  _("(C)"));
                  _("(C)"));
          fputs (_("This is free software; see the source for copying conditions.  There is NO\n\
          fputs (_("This is free software; see the source for copying conditions.  There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
                 stdout);
                 stdout);
          exit (0);
          exit (0);
        }
        }
      else if (strcmp (argv[i], "-fhelp") == 0)
      else if (strcmp (argv[i], "-fhelp") == 0)
        {
        {
          /* translate_options () has turned --help into -fhelp.  */
          /* translate_options () has turned --help into -fhelp.  */
          print_help_list = 1;
          print_help_list = 1;
 
 
          /* We will be passing a dummy file on to the sub-processes.  */
          /* We will be passing a dummy file on to the sub-processes.  */
          n_infiles++;
          n_infiles++;
          n_switches++;
          n_switches++;
 
 
          /* CPP driver cannot obtain switch from cc1_options.  */
          /* CPP driver cannot obtain switch from cc1_options.  */
          if (is_cpp_driver)
          if (is_cpp_driver)
            add_preprocessor_option ("--help", 6);
            add_preprocessor_option ("--help", 6);
          add_assembler_option ("--help", 6);
          add_assembler_option ("--help", 6);
          add_linker_option ("--help", 6);
          add_linker_option ("--help", 6);
        }
        }
      else if (strcmp (argv[i], "-ftarget-help") == 0)
      else if (strcmp (argv[i], "-ftarget-help") == 0)
        {
        {
          /* translate_options() has turned --target-help into -ftarget-help.  */
          /* translate_options() has turned --target-help into -ftarget-help.  */
          target_help_flag = 1;
          target_help_flag = 1;
 
 
          /* We will be passing a dummy file on to the sub-processes.  */
          /* We will be passing a dummy file on to the sub-processes.  */
          n_infiles++;
          n_infiles++;
          n_switches++;
          n_switches++;
 
 
          /* CPP driver cannot obtain switch from cc1_options.  */
          /* CPP driver cannot obtain switch from cc1_options.  */
          if (is_cpp_driver)
          if (is_cpp_driver)
            add_preprocessor_option ("--target-help", 13);
            add_preprocessor_option ("--target-help", 13);
          add_assembler_option ("--target-help", 13);
          add_assembler_option ("--target-help", 13);
          add_linker_option ("--target-help", 13);
          add_linker_option ("--target-help", 13);
        }
        }
      else if (! strcmp (argv[i], "-pass-exit-codes"))
      else if (! strcmp (argv[i], "-pass-exit-codes"))
        {
        {
          pass_exit_codes = 1;
          pass_exit_codes = 1;
          n_switches++;
          n_switches++;
        }
        }
      else if (! strcmp (argv[i], "-print-search-dirs"))
      else if (! strcmp (argv[i], "-print-search-dirs"))
        print_search_dirs = 1;
        print_search_dirs = 1;
      else if (! strcmp (argv[i], "-print-libgcc-file-name"))
      else if (! strcmp (argv[i], "-print-libgcc-file-name"))
        print_file_name = "libgcc.a";
        print_file_name = "libgcc.a";
      else if (! strncmp (argv[i], "-print-file-name=", 17))
      else if (! strncmp (argv[i], "-print-file-name=", 17))
        print_file_name = argv[i] + 17;
        print_file_name = argv[i] + 17;
      else if (! strncmp (argv[i], "-print-prog-name=", 17))
      else if (! strncmp (argv[i], "-print-prog-name=", 17))
        print_prog_name = argv[i] + 17;
        print_prog_name = argv[i] + 17;
      else if (! strcmp (argv[i], "-print-multi-lib"))
      else if (! strcmp (argv[i], "-print-multi-lib"))
        print_multi_lib = 1;
        print_multi_lib = 1;
      else if (! strcmp (argv[i], "-print-multi-directory"))
      else if (! strcmp (argv[i], "-print-multi-directory"))
        print_multi_directory = 1;
        print_multi_directory = 1;
      else if (! strcmp (argv[i], "-print-multi-os-directory"))
      else if (! strcmp (argv[i], "-print-multi-os-directory"))
        print_multi_os_directory = 1;
        print_multi_os_directory = 1;
      else if (! strncmp (argv[i], "-Wa,", 4))
      else if (! strncmp (argv[i], "-Wa,", 4))
        {
        {
          int prev, j;
          int prev, j;
          /* Pass the rest of this option to the assembler.  */
          /* Pass the rest of this option to the assembler.  */
 
 
          /* Split the argument at commas.  */
          /* Split the argument at commas.  */
          prev = 4;
          prev = 4;
          for (j = 4; argv[i][j]; j++)
          for (j = 4; argv[i][j]; j++)
            if (argv[i][j] == ',')
            if (argv[i][j] == ',')
              {
              {
                add_assembler_option (argv[i] + prev, j - prev);
                add_assembler_option (argv[i] + prev, j - prev);
                prev = j + 1;
                prev = j + 1;
              }
              }
 
 
          /* Record the part after the last comma.  */
          /* Record the part after the last comma.  */
          add_assembler_option (argv[i] + prev, j - prev);
          add_assembler_option (argv[i] + prev, j - prev);
        }
        }
      else if (! strncmp (argv[i], "-Wp,", 4))
      else if (! strncmp (argv[i], "-Wp,", 4))
        {
        {
          int prev, j;
          int prev, j;
          /* Pass the rest of this option to the preprocessor.  */
          /* Pass the rest of this option to the preprocessor.  */
 
 
          /* Split the argument at commas.  */
          /* Split the argument at commas.  */
          prev = 4;
          prev = 4;
          for (j = 4; argv[i][j]; j++)
          for (j = 4; argv[i][j]; j++)
            if (argv[i][j] == ',')
            if (argv[i][j] == ',')
              {
              {
                add_preprocessor_option (argv[i] + prev, j - prev);
                add_preprocessor_option (argv[i] + prev, j - prev);
                prev = j + 1;
                prev = j + 1;
              }
              }
 
 
          /* Record the part after the last comma.  */
          /* Record the part after the last comma.  */
          add_preprocessor_option (argv[i] + prev, j - prev);
          add_preprocessor_option (argv[i] + prev, j - prev);
        }
        }
      else if (argv[i][0] == '+' && argv[i][1] == 'e')
      else if (argv[i][0] == '+' && argv[i][1] == 'e')
        /* The +e options to the C++ front-end.  */
        /* The +e options to the C++ front-end.  */
        n_switches++;
        n_switches++;
      else if (strncmp (argv[i], "-Wl,", 4) == 0)
      else if (strncmp (argv[i], "-Wl,", 4) == 0)
        {
        {
          int j;
          int j;
          /* Split the argument at commas.  */
          /* Split the argument at commas.  */
          for (j = 3; argv[i][j]; j++)
          for (j = 3; argv[i][j]; j++)
            n_infiles += (argv[i][j] == ',');
            n_infiles += (argv[i][j] == ',');
        }
        }
      else if (strcmp (argv[i], "-Xlinker") == 0)
      else if (strcmp (argv[i], "-Xlinker") == 0)
        {
        {
          if (i + 1 == argc)
          if (i + 1 == argc)
            fatal ("argument to '-Xlinker' is missing");
            fatal ("argument to '-Xlinker' is missing");
 
 
          n_infiles++;
          n_infiles++;
          i++;
          i++;
        }
        }
      else if (strcmp (argv[i], "-Xpreprocessor") == 0)
      else if (strcmp (argv[i], "-Xpreprocessor") == 0)
        {
        {
          if (i + 1 == argc)
          if (i + 1 == argc)
            fatal ("argument to '-Xpreprocessor' is missing");
            fatal ("argument to '-Xpreprocessor' is missing");
 
 
          add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
          add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
        }
        }
      else if (strcmp (argv[i], "-Xassembler") == 0)
      else if (strcmp (argv[i], "-Xassembler") == 0)
        {
        {
          if (i + 1 == argc)
          if (i + 1 == argc)
            fatal ("argument to '-Xassembler' is missing");
            fatal ("argument to '-Xassembler' is missing");
 
 
          add_assembler_option (argv[i+1], strlen (argv[i+1]));
          add_assembler_option (argv[i+1], strlen (argv[i+1]));
        }
        }
      else if (strcmp (argv[i], "-l") == 0)
      else if (strcmp (argv[i], "-l") == 0)
        {
        {
          if (i + 1 == argc)
          if (i + 1 == argc)
            fatal ("argument to '-l' is missing");
            fatal ("argument to '-l' is missing");
 
 
          n_infiles++;
          n_infiles++;
          i++;
          i++;
        }
        }
      else if (strncmp (argv[i], "-l", 2) == 0)
      else if (strncmp (argv[i], "-l", 2) == 0)
        n_infiles++;
        n_infiles++;
      else if (strcmp (argv[i], "-save-temps") == 0)
      else if (strcmp (argv[i], "-save-temps") == 0)
        {
        {
          save_temps_flag = 1;
          save_temps_flag = 1;
          n_switches++;
          n_switches++;
        }
        }
      else if (strcmp (argv[i], "-combine") == 0)
      else if (strcmp (argv[i], "-combine") == 0)
        {
        {
          combine_flag = 1;
          combine_flag = 1;
          n_switches++;
          n_switches++;
        }
        }
      else if (strcmp (argv[i], "-specs") == 0)
      else if (strcmp (argv[i], "-specs") == 0)
        {
        {
          struct user_specs *user = XNEW (struct user_specs);
          struct user_specs *user = XNEW (struct user_specs);
          if (++i >= argc)
          if (++i >= argc)
            fatal ("argument to '-specs' is missing");
            fatal ("argument to '-specs' is missing");
 
 
          user->next = (struct user_specs *) 0;
          user->next = (struct user_specs *) 0;
          user->filename = argv[i];
          user->filename = argv[i];
          if (user_specs_tail)
          if (user_specs_tail)
            user_specs_tail->next = user;
            user_specs_tail->next = user;
          else
          else
            user_specs_head = user;
            user_specs_head = user;
          user_specs_tail = user;
          user_specs_tail = user;
        }
        }
      else if (strncmp (argv[i], "-specs=", 7) == 0)
      else if (strncmp (argv[i], "-specs=", 7) == 0)
        {
        {
          struct user_specs *user = XNEW (struct user_specs);
          struct user_specs *user = XNEW (struct user_specs);
          if (strlen (argv[i]) == 7)
          if (strlen (argv[i]) == 7)
            fatal ("argument to '-specs=' is missing");
            fatal ("argument to '-specs=' is missing");
 
 
          user->next = (struct user_specs *) 0;
          user->next = (struct user_specs *) 0;
          user->filename = argv[i] + 7;
          user->filename = argv[i] + 7;
          if (user_specs_tail)
          if (user_specs_tail)
            user_specs_tail->next = user;
            user_specs_tail->next = user;
          else
          else
            user_specs_head = user;
            user_specs_head = user;
          user_specs_tail = user;
          user_specs_tail = user;
        }
        }
      else if (strcmp (argv[i], "-time") == 0)
      else if (strcmp (argv[i], "-time") == 0)
        report_times = 1;
        report_times = 1;
      else if (strcmp (argv[i], "-pipe") == 0)
      else if (strcmp (argv[i], "-pipe") == 0)
        {
        {
          /* -pipe has to go into the switches array as well as
          /* -pipe has to go into the switches array as well as
             setting a flag.  */
             setting a flag.  */
          use_pipes = 1;
          use_pipes = 1;
          n_switches++;
          n_switches++;
        }
        }
      else if (strcmp (argv[i], "-###") == 0)
      else if (strcmp (argv[i], "-###") == 0)
        {
        {
          /* This is similar to -v except that there is no execution
          /* This is similar to -v except that there is no execution
             of the commands and the echoed arguments are quoted.  It
             of the commands and the echoed arguments are quoted.  It
             is intended for use in shell scripts to capture the
             is intended for use in shell scripts to capture the
             driver-generated command line.  */
             driver-generated command line.  */
          verbose_only_flag++;
          verbose_only_flag++;
          verbose_flag++;
          verbose_flag++;
        }
        }
      else if (argv[i][0] == '-' && argv[i][1] != 0)
      else if (argv[i][0] == '-' && argv[i][1] != 0)
        {
        {
          const char *p = &argv[i][1];
          const char *p = &argv[i][1];
          int c = *p;
          int c = *p;
 
 
          switch (c)
          switch (c)
            {
            {
            case 'b':
            case 'b':
              if (NULL == strchr(argv[i] + 2, '-'))
              if (NULL == strchr(argv[i] + 2, '-'))
                goto normal_switch;
                goto normal_switch;
 
 
              /* Fall through.  */
              /* Fall through.  */
            case 'V':
            case 'V':
              fatal ("'-%c' must come at the start of the command line", c);
              fatal ("'-%c' must come at the start of the command line", c);
              break;
              break;
 
 
            case 'B':
            case 'B':
              {
              {
                const char *value;
                const char *value;
                int len;
                int len;
 
 
                if (p[1] == 0 && i + 1 == argc)
                if (p[1] == 0 && i + 1 == argc)
                  fatal ("argument to '-B' is missing");
                  fatal ("argument to '-B' is missing");
                if (p[1] == 0)
                if (p[1] == 0)
                  value = argv[++i];
                  value = argv[++i];
                else
                else
                  value = p + 1;
                  value = p + 1;
 
 
                len = strlen (value);
                len = strlen (value);
 
 
                /* Catch the case where the user has forgotten to append a
                /* Catch the case where the user has forgotten to append a
                   directory separator to the path.  Note, they may be using
                   directory separator to the path.  Note, they may be using
                   -B to add an executable name prefix, eg "i386-elf-", in
                   -B to add an executable name prefix, eg "i386-elf-", in
                   order to distinguish between multiple installations of
                   order to distinguish between multiple installations of
                   GCC in the same directory.  Hence we must check to see
                   GCC in the same directory.  Hence we must check to see
                   if appending a directory separator actually makes a
                   if appending a directory separator actually makes a
                   valid directory name.  */
                   valid directory name.  */
                if (! IS_DIR_SEPARATOR (value [len - 1])
                if (! IS_DIR_SEPARATOR (value [len - 1])
                    && is_directory (value, false))
                    && is_directory (value, false))
                  {
                  {
                    char *tmp = XNEWVEC (char, len + 2);
                    char *tmp = XNEWVEC (char, len + 2);
                    strcpy (tmp, value);
                    strcpy (tmp, value);
                    tmp[len] = DIR_SEPARATOR;
                    tmp[len] = DIR_SEPARATOR;
                    tmp[++ len] = 0;
                    tmp[++ len] = 0;
                    value = tmp;
                    value = tmp;
                  }
                  }
 
 
                /* As a kludge, if the arg is "[foo/]stageN/", just
                /* As a kludge, if the arg is "[foo/]stageN/", just
                   add "[foo/]include" to the include prefix.  */
                   add "[foo/]include" to the include prefix.  */
                if ((len == 7
                if ((len == 7
                     || (len > 7
                     || (len > 7
                         && (IS_DIR_SEPARATOR (value[len - 8]))))
                         && (IS_DIR_SEPARATOR (value[len - 8]))))
                    && strncmp (value + len - 7, "stage", 5) == 0
                    && strncmp (value + len - 7, "stage", 5) == 0
                    && ISDIGIT (value[len - 2])
                    && ISDIGIT (value[len - 2])
                    && (IS_DIR_SEPARATOR (value[len - 1])))
                    && (IS_DIR_SEPARATOR (value[len - 1])))
                  {
                  {
                    if (len == 7)
                    if (len == 7)
                      add_prefix (&include_prefixes, "./", NULL,
                      add_prefix (&include_prefixes, "./", NULL,
                                  PREFIX_PRIORITY_B_OPT, 0, 0);
                                  PREFIX_PRIORITY_B_OPT, 0, 0);
                    else
                    else
                      {
                      {
                        char *string = xmalloc (len - 6);
                        char *string = xmalloc (len - 6);
                        memcpy (string, value, len - 7);
                        memcpy (string, value, len - 7);
                        string[len - 7] = 0;
                        string[len - 7] = 0;
                        add_prefix (&include_prefixes, string, NULL,
                        add_prefix (&include_prefixes, string, NULL,
                                    PREFIX_PRIORITY_B_OPT, 0, 0);
                                    PREFIX_PRIORITY_B_OPT, 0, 0);
                      }
                      }
                  }
                  }
 
 
                add_prefix (&exec_prefixes, value, NULL,
                add_prefix (&exec_prefixes, value, NULL,
                            PREFIX_PRIORITY_B_OPT, 0, 0);
                            PREFIX_PRIORITY_B_OPT, 0, 0);
                add_prefix (&startfile_prefixes, value, NULL,
                add_prefix (&startfile_prefixes, value, NULL,
                            PREFIX_PRIORITY_B_OPT, 0, 0);
                            PREFIX_PRIORITY_B_OPT, 0, 0);
                add_prefix (&include_prefixes, value, NULL,
                add_prefix (&include_prefixes, value, NULL,
                            PREFIX_PRIORITY_B_OPT, 0, 0);
                            PREFIX_PRIORITY_B_OPT, 0, 0);
                n_switches++;
                n_switches++;
              }
              }
              break;
              break;
 
 
            case 'v':   /* Print our subcommands and print versions.  */
            case 'v':   /* Print our subcommands and print versions.  */
              n_switches++;
              n_switches++;
              /* If they do anything other than exactly `-v', don't set
              /* If they do anything other than exactly `-v', don't set
                 verbose_flag; rather, continue on to give the error.  */
                 verbose_flag; rather, continue on to give the error.  */
              if (p[1] != 0)
              if (p[1] != 0)
                break;
                break;
              verbose_flag++;
              verbose_flag++;
              break;
              break;
 
 
            case 'S':
            case 'S':
            case 'c':
            case 'c':
              if (p[1] == 0)
              if (p[1] == 0)
                {
                {
                  have_c = 1;
                  have_c = 1;
                  n_switches++;
                  n_switches++;
                  break;
                  break;
                }
                }
              goto normal_switch;
              goto normal_switch;
 
 
            case 'o':
            case 'o':
              have_o = 1;
              have_o = 1;
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
              if (! have_c)
              if (! have_c)
                {
                {
                  int skip;
                  int skip;
 
 
                  /* Forward scan, just in case -S or -c is specified
                  /* Forward scan, just in case -S or -c is specified
                     after -o.  */
                     after -o.  */
                  int j = i + 1;
                  int j = i + 1;
                  if (p[1] == 0)
                  if (p[1] == 0)
                    ++j;
                    ++j;
                  while (j < argc)
                  while (j < argc)
                    {
                    {
                      if (argv[j][0] == '-')
                      if (argv[j][0] == '-')
                        {
                        {
                          if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
                          if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
                              && argv[j][2] == 0)
                              && argv[j][2] == 0)
                            {
                            {
                              have_c = 1;
                              have_c = 1;
                              break;
                              break;
                            }
                            }
                          else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
                          else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
                            j += skip - (argv[j][2] != 0);
                            j += skip - (argv[j][2] != 0);
                          else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
                          else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
                            j += skip;
                            j += skip;
                        }
                        }
                      j++;
                      j++;
                    }
                    }
                }
                }
#endif
#endif
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
#if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
              if (p[1] == 0)
              if (p[1] == 0)
                argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
                argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
              else
              else
                argv[i] = convert_filename (argv[i], ! have_c, 0);
                argv[i] = convert_filename (argv[i], ! have_c, 0);
#endif
#endif
              goto normal_switch;
              goto normal_switch;
 
 
            default:
            default:
            normal_switch:
            normal_switch:
 
 
#ifdef MODIFY_TARGET_NAME
#ifdef MODIFY_TARGET_NAME
              is_modify_target_name = 0;
              is_modify_target_name = 0;
 
 
              for (j = 0; j < ARRAY_SIZE (modify_target); j++)
              for (j = 0; j < ARRAY_SIZE (modify_target); j++)
                if (! strcmp (argv[i], modify_target[j].sw))
                if (! strcmp (argv[i], modify_target[j].sw))
                  {
                  {
                    char *new_name = xmalloc (strlen (modify_target[j].str)
                    char *new_name = xmalloc (strlen (modify_target[j].str)
                                              + strlen (spec_machine));
                                              + strlen (spec_machine));
                    const char *p, *r;
                    const char *p, *r;
                    char *q;
                    char *q;
                    int made_addition = 0;
                    int made_addition = 0;
 
 
                    is_modify_target_name = 1;
                    is_modify_target_name = 1;
                    for (p = spec_machine, q = new_name; *p != 0; )
                    for (p = spec_machine, q = new_name; *p != 0; )
                      {
                      {
                        if (modify_target[j].add_del == DELETE
                        if (modify_target[j].add_del == DELETE
                            && (! strncmp (q, modify_target[j].str,
                            && (! strncmp (q, modify_target[j].str,
                                           strlen (modify_target[j].str))))
                                           strlen (modify_target[j].str))))
                          p += strlen (modify_target[j].str);
                          p += strlen (modify_target[j].str);
                        else if (modify_target[j].add_del == ADD
                        else if (modify_target[j].add_del == ADD
                                 && ! made_addition && *p == '-')
                                 && ! made_addition && *p == '-')
                          {
                          {
                            for (r = modify_target[j].str; *r != 0; )
                            for (r = modify_target[j].str; *r != 0; )
                              *q++ = *r++;
                              *q++ = *r++;
                            made_addition = 1;
                            made_addition = 1;
                          }
                          }
 
 
                        *q++ = *p++;
                        *q++ = *p++;
                      }
                      }
 
 
                    spec_machine = new_name;
                    spec_machine = new_name;
                  }
                  }
 
 
              if (is_modify_target_name)
              if (is_modify_target_name)
                break;
                break;
#endif
#endif
 
 
              n_switches++;
              n_switches++;
 
 
              if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
              if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
                i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
                i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
              else if (WORD_SWITCH_TAKES_ARG (p))
              else if (WORD_SWITCH_TAKES_ARG (p))
                i += WORD_SWITCH_TAKES_ARG (p);
                i += WORD_SWITCH_TAKES_ARG (p);
            }
            }
        }
        }
      else
      else
        {
        {
          n_infiles++;
          n_infiles++;
          lang_n_infiles++;
          lang_n_infiles++;
        }
        }
    }
    }
 
 
  if (save_temps_flag && use_pipes)
  if (save_temps_flag && use_pipes)
    {
    {
      /* -save-temps overrides -pipe, so that temp files are produced */
      /* -save-temps overrides -pipe, so that temp files are produced */
      if (save_temps_flag)
      if (save_temps_flag)
        error ("warning: -pipe ignored because -save-temps specified");
        error ("warning: -pipe ignored because -save-temps specified");
      use_pipes = 0;
      use_pipes = 0;
    }
    }
 
 
  /* Set up the search paths before we go looking for config files.  */
  /* Set up the search paths before we go looking for config files.  */
 
 
  /* These come before the md prefixes so that we will find gcc's subcommands
  /* These come before the md prefixes so that we will find gcc's subcommands
     (such as cpp) rather than those of the host system.  */
     (such as cpp) rather than those of the host system.  */
  /* Use 2 as fourth arg meaning try just the machine as a suffix,
  /* Use 2 as fourth arg meaning try just the machine as a suffix,
     as well as trying the machine and the version.  */
     as well as trying the machine and the version.  */
#ifndef OS2
#ifndef OS2
  add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
  add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
              PREFIX_PRIORITY_LAST, 1, 0);
              PREFIX_PRIORITY_LAST, 1, 0);
  add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
  add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
              PREFIX_PRIORITY_LAST, 2, 0);
              PREFIX_PRIORITY_LAST, 2, 0);
  add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
  add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
              PREFIX_PRIORITY_LAST, 2, 0);
              PREFIX_PRIORITY_LAST, 2, 0);
  add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
  add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
              PREFIX_PRIORITY_LAST, 2, 0);
              PREFIX_PRIORITY_LAST, 2, 0);
  add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
  add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
              PREFIX_PRIORITY_LAST, 2, 0);
              PREFIX_PRIORITY_LAST, 2, 0);
#endif
#endif
 
 
  add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
  add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
              PREFIX_PRIORITY_LAST, 1, 0);
              PREFIX_PRIORITY_LAST, 1, 0);
  add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
  add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
              PREFIX_PRIORITY_LAST, 1, 0);
              PREFIX_PRIORITY_LAST, 1, 0);
 
 
  tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
  tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
                           dir_separator_str, NULL);
                           dir_separator_str, NULL);
 
 
  /* If tooldir is relative, base it on exec_prefixes.  A relative
  /* If tooldir is relative, base it on exec_prefixes.  A relative
     tooldir lets us move the installed tree as a unit.
     tooldir lets us move the installed tree as a unit.
 
 
     If GCC_EXEC_PREFIX is defined, then we want to add two relative
     If GCC_EXEC_PREFIX is defined, then we want to add two relative
     directories, so that we can search both the user specified directory
     directories, so that we can search both the user specified directory
     and the standard place.  */
     and the standard place.  */
 
 
  if (!IS_ABSOLUTE_PATH (tooldir_prefix))
  if (!IS_ABSOLUTE_PATH (tooldir_prefix))
    {
    {
      if (gcc_exec_prefix)
      if (gcc_exec_prefix)
        {
        {
          char *gcc_exec_tooldir_prefix
          char *gcc_exec_tooldir_prefix
            = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
            = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
                      spec_version, dir_separator_str, tooldir_prefix, NULL);
                      spec_version, dir_separator_str, tooldir_prefix, NULL);
 
 
          add_prefix (&exec_prefixes,
          add_prefix (&exec_prefixes,
                      concat (gcc_exec_tooldir_prefix, "bin",
                      concat (gcc_exec_tooldir_prefix, "bin",
                              dir_separator_str, NULL),
                              dir_separator_str, NULL),
                      NULL, PREFIX_PRIORITY_LAST, 0, 0);
                      NULL, PREFIX_PRIORITY_LAST, 0, 0);
          add_prefix (&startfile_prefixes,
          add_prefix (&startfile_prefixes,
                      concat (gcc_exec_tooldir_prefix, "lib",
                      concat (gcc_exec_tooldir_prefix, "lib",
                              dir_separator_str, NULL),
                              dir_separator_str, NULL),
                      NULL, PREFIX_PRIORITY_LAST, 0, 1);
                      NULL, PREFIX_PRIORITY_LAST, 0, 1);
        }
        }
 
 
      tooldir_prefix = concat (standard_exec_prefix, spec_machine,
      tooldir_prefix = concat (standard_exec_prefix, spec_machine,
                               dir_separator_str, spec_version,
                               dir_separator_str, spec_version,
                               dir_separator_str, tooldir_prefix, NULL);
                               dir_separator_str, tooldir_prefix, NULL);
    }
    }
 
 
  add_prefix (&exec_prefixes,
  add_prefix (&exec_prefixes,
              concat (tooldir_prefix, "bin", dir_separator_str, NULL),
              concat (tooldir_prefix, "bin", dir_separator_str, NULL),
              "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
              "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
  add_prefix (&startfile_prefixes,
  add_prefix (&startfile_prefixes,
              concat (tooldir_prefix, "lib", dir_separator_str, NULL),
              concat (tooldir_prefix, "lib", dir_separator_str, NULL),
              "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
              "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
 
 
#if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
#if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
  /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
  /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
     then consider it to relocate with the rest of the GCC installation
     then consider it to relocate with the rest of the GCC installation
     if GCC_EXEC_PREFIX is set.
     if GCC_EXEC_PREFIX is set.
     ``make_relative_prefix'' is not compiled for VMS, so don't call it.  */
     ``make_relative_prefix'' is not compiled for VMS, so don't call it.  */
  if (target_system_root && gcc_exec_prefix)
  if (target_system_root && gcc_exec_prefix)
    {
    {
      char *tmp_prefix = make_relative_prefix (argv[0],
      char *tmp_prefix = make_relative_prefix (argv[0],
                                               standard_bindir_prefix,
                                               standard_bindir_prefix,
                                               target_system_root);
                                               target_system_root);
      if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
      if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
        {
        {
          target_system_root = tmp_prefix;
          target_system_root = tmp_prefix;
          target_system_root_changed = 1;
          target_system_root_changed = 1;
        }
        }
    }
    }
#endif
#endif
 
 
  /* More prefixes are enabled in main, after we read the specs file
  /* More prefixes are enabled in main, after we read the specs file
     and determine whether this is cross-compilation or not.  */
     and determine whether this is cross-compilation or not.  */
 
 
  /* Then create the space for the vectors and scan again.  */
  /* Then create the space for the vectors and scan again.  */
 
 
  switches = XNEWVEC (struct switchstr, n_switches + 1);
  switches = XNEWVEC (struct switchstr, n_switches + 1);
  infiles = XNEWVEC (struct infile, n_infiles + 1);
  infiles = XNEWVEC (struct infile, n_infiles + 1);
  n_switches = 0;
  n_switches = 0;
  n_infiles = 0;
  n_infiles = 0;
  last_language_n_infiles = -1;
  last_language_n_infiles = -1;
 
 
  /* This, time, copy the text of each switch and store a pointer
  /* This, time, copy the text of each switch and store a pointer
     to the copy in the vector of switches.
     to the copy in the vector of switches.
     Store all the infiles in their vector.  */
     Store all the infiles in their vector.  */
 
 
  for (i = 1; i < argc; i++)
  for (i = 1; i < argc; i++)
    {
    {
      /* Just skip the switches that were handled by the preceding loop.  */
      /* Just skip the switches that were handled by the preceding loop.  */
#ifdef MODIFY_TARGET_NAME
#ifdef MODIFY_TARGET_NAME
      is_modify_target_name = 0;
      is_modify_target_name = 0;
 
 
      for (j = 0; j < ARRAY_SIZE (modify_target); j++)
      for (j = 0; j < ARRAY_SIZE (modify_target); j++)
        if (! strcmp (argv[i], modify_target[j].sw))
        if (! strcmp (argv[i], modify_target[j].sw))
          is_modify_target_name = 1;
          is_modify_target_name = 1;
 
 
      if (is_modify_target_name)
      if (is_modify_target_name)
        ;
        ;
      else
      else
#endif
#endif
      if (! strncmp (argv[i], "-Wa,", 4))
      if (! strncmp (argv[i], "-Wa,", 4))
        ;
        ;
      else if (! strncmp (argv[i], "-Wp,", 4))
      else if (! strncmp (argv[i], "-Wp,", 4))
        ;
        ;
      else if (! strcmp (argv[i], "-pass-exit-codes"))
      else if (! strcmp (argv[i], "-pass-exit-codes"))
        ;
        ;
      else if (! strcmp (argv[i], "-print-search-dirs"))
      else if (! strcmp (argv[i], "-print-search-dirs"))
        ;
        ;
      else if (! strcmp (argv[i], "-print-libgcc-file-name"))
      else if (! strcmp (argv[i], "-print-libgcc-file-name"))
        ;
        ;
      else if (! strncmp (argv[i], "-print-file-name=", 17))
      else if (! strncmp (argv[i], "-print-file-name=", 17))
        ;
        ;
      else if (! strncmp (argv[i], "-print-prog-name=", 17))
      else if (! strncmp (argv[i], "-print-prog-name=", 17))
        ;
        ;
      else if (! strcmp (argv[i], "-print-multi-lib"))
      else if (! strcmp (argv[i], "-print-multi-lib"))
        ;
        ;
      else if (! strcmp (argv[i], "-print-multi-directory"))
      else if (! strcmp (argv[i], "-print-multi-directory"))
        ;
        ;
      else if (! strcmp (argv[i], "-print-multi-os-directory"))
      else if (! strcmp (argv[i], "-print-multi-os-directory"))
        ;
        ;
      else if (! strcmp (argv[i], "-ftarget-help"))
      else if (! strcmp (argv[i], "-ftarget-help"))
        ;
        ;
      else if (! strcmp (argv[i], "-fhelp"))
      else if (! strcmp (argv[i], "-fhelp"))
        ;
        ;
      else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
      else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
        {
        {
          target_system_root = argv[i] + strlen ("--sysroot=");
          target_system_root = argv[i] + strlen ("--sysroot=");
          target_system_root_changed = 1;
          target_system_root_changed = 1;
        }
        }
      else if (argv[i][0] == '+' && argv[i][1] == 'e')
      else if (argv[i][0] == '+' && argv[i][1] == 'e')
        {
        {
          /* Compensate for the +e options to the C++ front-end;
          /* Compensate for the +e options to the C++ front-end;
             they're there simply for cfront call-compatibility.  We do
             they're there simply for cfront call-compatibility.  We do
             some magic in default_compilers to pass them down properly.
             some magic in default_compilers to pass them down properly.
             Note we deliberately start at the `+' here, to avoid passing
             Note we deliberately start at the `+' here, to avoid passing
             -e0 or -e1 down into the linker.  */
             -e0 or -e1 down into the linker.  */
          switches[n_switches].part1 = &argv[i][0];
          switches[n_switches].part1 = &argv[i][0];
          switches[n_switches].args = 0;
          switches[n_switches].args = 0;
          switches[n_switches].live_cond = SWITCH_OK;
          switches[n_switches].live_cond = SWITCH_OK;
          switches[n_switches].validated = 0;
          switches[n_switches].validated = 0;
          n_switches++;
          n_switches++;
        }
        }
      else if (strncmp (argv[i], "-Wl,", 4) == 0)
      else if (strncmp (argv[i], "-Wl,", 4) == 0)
        {
        {
          int prev, j;
          int prev, j;
          /* Split the argument at commas.  */
          /* Split the argument at commas.  */
          prev = 4;
          prev = 4;
          for (j = 4; argv[i][j]; j++)
          for (j = 4; argv[i][j]; j++)
            if (argv[i][j] == ',')
            if (argv[i][j] == ',')
              {
              {
                infiles[n_infiles].language = "*";
                infiles[n_infiles].language = "*";
                infiles[n_infiles++].name
                infiles[n_infiles++].name
                  = save_string (argv[i] + prev, j - prev);
                  = save_string (argv[i] + prev, j - prev);
                prev = j + 1;
                prev = j + 1;
              }
              }
          /* Record the part after the last comma.  */
          /* Record the part after the last comma.  */
          infiles[n_infiles].language = "*";
          infiles[n_infiles].language = "*";
          infiles[n_infiles++].name = argv[i] + prev;
          infiles[n_infiles++].name = argv[i] + prev;
        }
        }
      else if (strcmp (argv[i], "-Xlinker") == 0)
      else if (strcmp (argv[i], "-Xlinker") == 0)
        {
        {
          infiles[n_infiles].language = "*";
          infiles[n_infiles].language = "*";
          infiles[n_infiles++].name = argv[++i];
          infiles[n_infiles++].name = argv[++i];
        }
        }
      /* Xassembler and Xpreprocessor were already handled in the first argv
      /* Xassembler and Xpreprocessor were already handled in the first argv
         scan, so all we need to do here is ignore them and their argument.  */
         scan, so all we need to do here is ignore them and their argument.  */
      else if (strcmp (argv[i], "-Xassembler") == 0)
      else if (strcmp (argv[i], "-Xassembler") == 0)
        i++;
        i++;
      else if (strcmp (argv[i], "-Xpreprocessor") == 0)
      else if (strcmp (argv[i], "-Xpreprocessor") == 0)
        i++;
        i++;
      else if (strcmp (argv[i], "-l") == 0)
      else if (strcmp (argv[i], "-l") == 0)
        { /* POSIX allows separation of -l and the lib arg;
        { /* POSIX allows separation of -l and the lib arg;
             canonicalize by concatenating -l with its arg */
             canonicalize by concatenating -l with its arg */
          infiles[n_infiles].language = "*";
          infiles[n_infiles].language = "*";
          infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
          infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
        }
        }
      else if (strncmp (argv[i], "-l", 2) == 0)
      else if (strncmp (argv[i], "-l", 2) == 0)
        {
        {
          infiles[n_infiles].language = "*";
          infiles[n_infiles].language = "*";
          infiles[n_infiles++].name = argv[i];
          infiles[n_infiles++].name = argv[i];
        }
        }
      else if (strcmp (argv[i], "-specs") == 0)
      else if (strcmp (argv[i], "-specs") == 0)
        i++;
        i++;
      else if (strncmp (argv[i], "-specs=", 7) == 0)
      else if (strncmp (argv[i], "-specs=", 7) == 0)
        ;
        ;
      else if (strcmp (argv[i], "-time") == 0)
      else if (strcmp (argv[i], "-time") == 0)
        ;
        ;
      else if (strcmp (argv[i], "-###") == 0)
      else if (strcmp (argv[i], "-###") == 0)
        ;
        ;
      else if (argv[i][0] == '-' && argv[i][1] != 0)
      else if (argv[i][0] == '-' && argv[i][1] != 0)
        {
        {
          const char *p = &argv[i][1];
          const char *p = &argv[i][1];
          int c = *p;
          int c = *p;
 
 
          if (c == 'x')
          if (c == 'x')
            {
            {
              if (p[1] == 0 && i + 1 == argc)
              if (p[1] == 0 && i + 1 == argc)
                fatal ("argument to '-x' is missing");
                fatal ("argument to '-x' is missing");
              if (p[1] == 0)
              if (p[1] == 0)
                spec_lang = argv[++i];
                spec_lang = argv[++i];
              else
              else
                spec_lang = p + 1;
                spec_lang = p + 1;
              if (! strcmp (spec_lang, "none"))
              if (! strcmp (spec_lang, "none"))
                /* Suppress the warning if -xnone comes after the last input
                /* Suppress the warning if -xnone comes after the last input
                   file, because alternate command interfaces like g++ might
                   file, because alternate command interfaces like g++ might
                   find it useful to place -xnone after each input file.  */
                   find it useful to place -xnone after each input file.  */
                spec_lang = 0;
                spec_lang = 0;
              else
              else
                last_language_n_infiles = n_infiles;
                last_language_n_infiles = n_infiles;
              continue;
              continue;
            }
            }
          switches[n_switches].part1 = p;
          switches[n_switches].part1 = p;
          /* Deal with option arguments in separate argv elements.  */
          /* Deal with option arguments in separate argv elements.  */
          if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
          if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
              || WORD_SWITCH_TAKES_ARG (p))
              || WORD_SWITCH_TAKES_ARG (p))
            {
            {
              int j = 0;
              int j = 0;
              int n_args = WORD_SWITCH_TAKES_ARG (p);
              int n_args = WORD_SWITCH_TAKES_ARG (p);
 
 
              if (n_args == 0)
              if (n_args == 0)
                {
                {
                  /* Count only the option arguments in separate argv elements.  */
                  /* Count only the option arguments in separate argv elements.  */
                  n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
                  n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
                }
                }
              if (i + n_args >= argc)
              if (i + n_args >= argc)
                fatal ("argument to '-%s' is missing", p);
                fatal ("argument to '-%s' is missing", p);
              switches[n_switches].args
              switches[n_switches].args
                = XNEWVEC (const char *, n_args + 1);
                = XNEWVEC (const char *, n_args + 1);
              while (j < n_args)
              while (j < n_args)
                switches[n_switches].args[j++] = argv[++i];
                switches[n_switches].args[j++] = argv[++i];
              /* Null-terminate the vector.  */
              /* Null-terminate the vector.  */
              switches[n_switches].args[j] = 0;
              switches[n_switches].args[j] = 0;
            }
            }
          else if (strchr (switches_need_spaces, c))
          else if (strchr (switches_need_spaces, c))
            {
            {
              /* On some systems, ld cannot handle some options without
              /* On some systems, ld cannot handle some options without
                 a space.  So split the option from its argument.  */
                 a space.  So split the option from its argument.  */
              char *part1 = XNEWVEC (char, 2);
              char *part1 = XNEWVEC (char, 2);
              part1[0] = c;
              part1[0] = c;
              part1[1] = '\0';
              part1[1] = '\0';
 
 
              switches[n_switches].part1 = part1;
              switches[n_switches].part1 = part1;
              switches[n_switches].args = XNEWVEC (const char *, 2);
              switches[n_switches].args = XNEWVEC (const char *, 2);
              switches[n_switches].args[0] = xstrdup (p+1);
              switches[n_switches].args[0] = xstrdup (p+1);
              switches[n_switches].args[1] = 0;
              switches[n_switches].args[1] = 0;
            }
            }
          else
          else
            switches[n_switches].args = 0;
            switches[n_switches].args = 0;
 
 
          switches[n_switches].live_cond = SWITCH_OK;
          switches[n_switches].live_cond = SWITCH_OK;
          switches[n_switches].validated = 0;
          switches[n_switches].validated = 0;
          switches[n_switches].ordering = 0;
          switches[n_switches].ordering = 0;
          /* These are always valid, since gcc.c itself understands them.  */
          /* These are always valid, since gcc.c itself understands them.  */
          if (!strcmp (p, "save-temps")
          if (!strcmp (p, "save-temps")
              || !strcmp (p, "static-libgcc")
              || !strcmp (p, "static-libgcc")
              || !strcmp (p, "shared-libgcc")
              || !strcmp (p, "shared-libgcc")
              || !strcmp (p, "pipe"))
              || !strcmp (p, "pipe"))
            switches[n_switches].validated = 1;
            switches[n_switches].validated = 1;
          else
          else
            {
            {
              char ch = switches[n_switches].part1[0];
              char ch = switches[n_switches].part1[0];
              if (ch == 'B')
              if (ch == 'B')
                switches[n_switches].validated = 1;
                switches[n_switches].validated = 1;
            }
            }
          n_switches++;
          n_switches++;
        }
        }
      else
      else
        {
        {
#ifdef HAVE_TARGET_OBJECT_SUFFIX
#ifdef HAVE_TARGET_OBJECT_SUFFIX
          argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
          argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
#endif
#endif
 
 
          if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
          if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
            {
            {
              perror_with_name (argv[i]);
              perror_with_name (argv[i]);
              error_count++;
              error_count++;
            }
            }
          else
          else
            {
            {
              infiles[n_infiles].language = spec_lang;
              infiles[n_infiles].language = spec_lang;
              infiles[n_infiles++].name = argv[i];
              infiles[n_infiles++].name = argv[i];
            }
            }
        }
        }
    }
    }
 
 
  if (n_infiles == last_language_n_infiles && spec_lang != 0)
  if (n_infiles == last_language_n_infiles && spec_lang != 0)
    error ("warning: '-x %s' after last input file has no effect", spec_lang);
    error ("warning: '-x %s' after last input file has no effect", spec_lang);
 
 
  /* Ensure we only invoke each subprocess once.  */
  /* Ensure we only invoke each subprocess once.  */
  if (target_help_flag || print_help_list)
  if (target_help_flag || print_help_list)
    {
    {
      n_infiles = 1;
      n_infiles = 1;
 
 
      /* Create a dummy input file, so that we can pass --target-help on to
      /* Create a dummy input file, so that we can pass --target-help on to
         the various sub-processes.  */
         the various sub-processes.  */
      infiles[0].language = "c";
      infiles[0].language = "c";
      infiles[0].name   = "help-dummy";
      infiles[0].name   = "help-dummy";
 
 
      if (target_help_flag)
      if (target_help_flag)
        {
        {
          switches[n_switches].part1     = "--target-help";
          switches[n_switches].part1     = "--target-help";
          switches[n_switches].args      = 0;
          switches[n_switches].args      = 0;
          switches[n_switches].live_cond = SWITCH_OK;
          switches[n_switches].live_cond = SWITCH_OK;
          switches[n_switches].validated = 0;
          switches[n_switches].validated = 0;
 
 
          n_switches++;
          n_switches++;
        }
        }
 
 
      if (print_help_list)
      if (print_help_list)
        {
        {
          switches[n_switches].part1     = "--help";
          switches[n_switches].part1     = "--help";
          switches[n_switches].args      = 0;
          switches[n_switches].args      = 0;
          switches[n_switches].live_cond = SWITCH_OK;
          switches[n_switches].live_cond = SWITCH_OK;
          switches[n_switches].validated = 0;
          switches[n_switches].validated = 0;
 
 
          n_switches++;
          n_switches++;
        }
        }
    }
    }
 
 
  switches[n_switches].part1 = 0;
  switches[n_switches].part1 = 0;
  infiles[n_infiles].name = 0;
  infiles[n_infiles].name = 0;
}
}
 
 
/* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
/* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
   and place that in the environment.  */
   and place that in the environment.  */
 
 
static void
static void
set_collect_gcc_options (void)
set_collect_gcc_options (void)
{
{
  int i;
  int i;
  int first_time;
  int first_time;
 
 
  /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
  /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
     the compiler.  */
     the compiler.  */
  obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
  obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
                sizeof ("COLLECT_GCC_OPTIONS=") - 1);
                sizeof ("COLLECT_GCC_OPTIONS=") - 1);
 
 
  first_time = TRUE;
  first_time = TRUE;
  for (i = 0; (int) i < n_switches; i++)
  for (i = 0; (int) i < n_switches; i++)
    {
    {
      const char *const *args;
      const char *const *args;
      const char *p, *q;
      const char *p, *q;
      if (!first_time)
      if (!first_time)
        obstack_grow (&collect_obstack, " ", 1);
        obstack_grow (&collect_obstack, " ", 1);
 
 
      first_time = FALSE;
      first_time = FALSE;
 
 
      /* Ignore elided switches.  */
      /* Ignore elided switches.  */
      if (switches[i].live_cond == SWITCH_IGNORE)
      if (switches[i].live_cond == SWITCH_IGNORE)
        continue;
        continue;
 
 
      obstack_grow (&collect_obstack, "'-", 2);
      obstack_grow (&collect_obstack, "'-", 2);
      q = switches[i].part1;
      q = switches[i].part1;
      while ((p = strchr (q, '\'')))
      while ((p = strchr (q, '\'')))
        {
        {
          obstack_grow (&collect_obstack, q, p - q);
          obstack_grow (&collect_obstack, q, p - q);
          obstack_grow (&collect_obstack, "'\\''", 4);
          obstack_grow (&collect_obstack, "'\\''", 4);
          q = ++p;
          q = ++p;
        }
        }
      obstack_grow (&collect_obstack, q, strlen (q));
      obstack_grow (&collect_obstack, q, strlen (q));
      obstack_grow (&collect_obstack, "'", 1);
      obstack_grow (&collect_obstack, "'", 1);
 
 
      for (args = switches[i].args; args && *args; args++)
      for (args = switches[i].args; args && *args; args++)
        {
        {
          obstack_grow (&collect_obstack, " '", 2);
          obstack_grow (&collect_obstack, " '", 2);
          q = *args;
          q = *args;
          while ((p = strchr (q, '\'')))
          while ((p = strchr (q, '\'')))
            {
            {
              obstack_grow (&collect_obstack, q, p - q);
              obstack_grow (&collect_obstack, q, p - q);
              obstack_grow (&collect_obstack, "'\\''", 4);
              obstack_grow (&collect_obstack, "'\\''", 4);
              q = ++p;
              q = ++p;
            }
            }
          obstack_grow (&collect_obstack, q, strlen (q));
          obstack_grow (&collect_obstack, q, strlen (q));
          obstack_grow (&collect_obstack, "'", 1);
          obstack_grow (&collect_obstack, "'", 1);
        }
        }
    }
    }
  obstack_grow (&collect_obstack, "\0", 1);
  obstack_grow (&collect_obstack, "\0", 1);
  putenv (XOBFINISH (&collect_obstack, char *));
  putenv (XOBFINISH (&collect_obstack, char *));
}
}


/* Process a spec string, accumulating and running commands.  */
/* Process a spec string, accumulating and running commands.  */
 
 
/* These variables describe the input file name.
/* These variables describe the input file name.
   input_file_number is the index on outfiles of this file,
   input_file_number is the index on outfiles of this file,
   so that the output file name can be stored for later use by %o.
   so that the output file name can be stored for later use by %o.
   input_basename is the start of the part of the input file
   input_basename is the start of the part of the input file
   sans all directory names, and basename_length is the number
   sans all directory names, and basename_length is the number
   of characters starting there excluding the suffix .c or whatever.  */
   of characters starting there excluding the suffix .c or whatever.  */
 
 
static const char *input_filename;
static const char *input_filename;
static int input_file_number;
static int input_file_number;
size_t input_filename_length;
size_t input_filename_length;
static int basename_length;
static int basename_length;
static int suffixed_basename_length;
static int suffixed_basename_length;
static const char *input_basename;
static const char *input_basename;
static const char *input_suffix;
static const char *input_suffix;
#ifndef HOST_LACKS_INODE_NUMBERS
#ifndef HOST_LACKS_INODE_NUMBERS
static struct stat input_stat;
static struct stat input_stat;
#endif
#endif
static int input_stat_set;
static int input_stat_set;
 
 
/* The compiler used to process the current input file.  */
/* The compiler used to process the current input file.  */
static struct compiler *input_file_compiler;
static struct compiler *input_file_compiler;
 
 
/* These are variables used within do_spec and do_spec_1.  */
/* These are variables used within do_spec and do_spec_1.  */
 
 
/* Nonzero if an arg has been started and not yet terminated
/* Nonzero if an arg has been started and not yet terminated
   (with space, tab or newline).  */
   (with space, tab or newline).  */
static int arg_going;
static int arg_going;
 
 
/* Nonzero means %d or %g has been seen; the next arg to be terminated
/* Nonzero means %d or %g has been seen; the next arg to be terminated
   is a temporary file name.  */
   is a temporary file name.  */
static int delete_this_arg;
static int delete_this_arg;
 
 
/* Nonzero means %w has been seen; the next arg to be terminated
/* Nonzero means %w has been seen; the next arg to be terminated
   is the output file name of this compilation.  */
   is the output file name of this compilation.  */
static int this_is_output_file;
static int this_is_output_file;
 
 
/* Nonzero means %s has been seen; the next arg to be terminated
/* Nonzero means %s has been seen; the next arg to be terminated
   is the name of a library file and we should try the standard
   is the name of a library file and we should try the standard
   search dirs for it.  */
   search dirs for it.  */
static int this_is_library_file;
static int this_is_library_file;
 
 
/* Nonzero means that the input of this command is coming from a pipe.  */
/* Nonzero means that the input of this command is coming from a pipe.  */
static int input_from_pipe;
static int input_from_pipe;
 
 
/* Nonnull means substitute this for any suffix when outputting a switches
/* Nonnull means substitute this for any suffix when outputting a switches
   arguments.  */
   arguments.  */
static const char *suffix_subst;
static const char *suffix_subst;
 
 
/* Process the spec SPEC and run the commands specified therein.
/* Process the spec SPEC and run the commands specified therein.
   Returns 0 if the spec is successfully processed; -1 if failed.  */
   Returns 0 if the spec is successfully processed; -1 if failed.  */
 
 
int
int
do_spec (const char *spec)
do_spec (const char *spec)
{
{
  int value;
  int value;
 
 
  value = do_spec_2 (spec);
  value = do_spec_2 (spec);
 
 
  /* Force out any unfinished command.
  /* Force out any unfinished command.
     If -pipe, this forces out the last command if it ended in `|'.  */
     If -pipe, this forces out the last command if it ended in `|'.  */
  if (value == 0)
  if (value == 0)
    {
    {
      if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
      if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
        argbuf_index--;
        argbuf_index--;
 
 
      set_collect_gcc_options ();
      set_collect_gcc_options ();
 
 
      if (argbuf_index > 0)
      if (argbuf_index > 0)
        value = execute ();
        value = execute ();
    }
    }
 
 
  return value;
  return value;
}
}
 
 
static int
static int
do_spec_2 (const char *spec)
do_spec_2 (const char *spec)
{
{
  const char *string;
  const char *string;
  int result;
  int result;
 
 
  clear_args ();
  clear_args ();
  arg_going = 0;
  arg_going = 0;
  delete_this_arg = 0;
  delete_this_arg = 0;
  this_is_output_file = 0;
  this_is_output_file = 0;
  this_is_library_file = 0;
  this_is_library_file = 0;
  input_from_pipe = 0;
  input_from_pipe = 0;
  suffix_subst = NULL;
  suffix_subst = NULL;
 
 
  result = do_spec_1 (spec, 0, NULL);
  result = do_spec_1 (spec, 0, NULL);
 
 
  /* End any pending argument.  */
  /* End any pending argument.  */
  if (arg_going)
  if (arg_going)
    {
    {
      obstack_1grow (&obstack, 0);
      obstack_1grow (&obstack, 0);
      string = XOBFINISH (&obstack, const char *);
      string = XOBFINISH (&obstack, const char *);
      if (this_is_library_file)
      if (this_is_library_file)
        string = find_file (string);
        string = find_file (string);
      store_arg (string, delete_this_arg, this_is_output_file);
      store_arg (string, delete_this_arg, this_is_output_file);
      if (this_is_output_file)
      if (this_is_output_file)
        outfiles[input_file_number] = string;
        outfiles[input_file_number] = string;
      arg_going = 0;
      arg_going = 0;
    }
    }
 
 
  return result;
  return result;
}
}
 
 
 
 
/* Process the given spec string and add any new options to the end
/* Process the given spec string and add any new options to the end
   of the switches/n_switches array.  */
   of the switches/n_switches array.  */
 
 
static void
static void
do_option_spec (const char *name, const char *spec)
do_option_spec (const char *name, const char *spec)
{
{
  unsigned int i, value_count, value_len;
  unsigned int i, value_count, value_len;
  const char *p, *q, *value;
  const char *p, *q, *value;
  char *tmp_spec, *tmp_spec_p;
  char *tmp_spec, *tmp_spec_p;
 
 
  if (configure_default_options[0].name == NULL)
  if (configure_default_options[0].name == NULL)
    return;
    return;
 
 
  for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
  for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
    if (strcmp (configure_default_options[i].name, name) == 0)
    if (strcmp (configure_default_options[i].name, name) == 0)
      break;
      break;
  if (i == ARRAY_SIZE (configure_default_options))
  if (i == ARRAY_SIZE (configure_default_options))
    return;
    return;
 
 
  value = configure_default_options[i].value;
  value = configure_default_options[i].value;
  value_len = strlen (value);
  value_len = strlen (value);
 
 
  /* Compute the size of the final spec.  */
  /* Compute the size of the final spec.  */
  value_count = 0;
  value_count = 0;
  p = spec;
  p = spec;
  while ((p = strstr (p, "%(VALUE)")) != NULL)
  while ((p = strstr (p, "%(VALUE)")) != NULL)
    {
    {
      p ++;
      p ++;
      value_count ++;
      value_count ++;
    }
    }
 
 
  /* Replace each %(VALUE) by the specified value.  */
  /* Replace each %(VALUE) by the specified value.  */
  tmp_spec = alloca (strlen (spec) + 1
  tmp_spec = alloca (strlen (spec) + 1
                     + value_count * (value_len - strlen ("%(VALUE)")));
                     + value_count * (value_len - strlen ("%(VALUE)")));
  tmp_spec_p = tmp_spec;
  tmp_spec_p = tmp_spec;
  q = spec;
  q = spec;
  while ((p = strstr (q, "%(VALUE)")) != NULL)
  while ((p = strstr (q, "%(VALUE)")) != NULL)
    {
    {
      memcpy (tmp_spec_p, q, p - q);
      memcpy (tmp_spec_p, q, p - q);
      tmp_spec_p = tmp_spec_p + (p - q);
      tmp_spec_p = tmp_spec_p + (p - q);
      memcpy (tmp_spec_p, value, value_len);
      memcpy (tmp_spec_p, value, value_len);
      tmp_spec_p += value_len;
      tmp_spec_p += value_len;
      q = p + strlen ("%(VALUE)");
      q = p + strlen ("%(VALUE)");
    }
    }
  strcpy (tmp_spec_p, q);
  strcpy (tmp_spec_p, q);
 
 
  do_self_spec (tmp_spec);
  do_self_spec (tmp_spec);
}
}
 
 
/* Process the given spec string and add any new options to the end
/* Process the given spec string and add any new options to the end
   of the switches/n_switches array.  */
   of the switches/n_switches array.  */
 
 
static void
static void
do_self_spec (const char *spec)
do_self_spec (const char *spec)
{
{
  do_spec_2 (spec);
  do_spec_2 (spec);
  do_spec_1 (" ", 0, NULL);
  do_spec_1 (" ", 0, NULL);
 
 
  if (argbuf_index > 0)
  if (argbuf_index > 0)
    {
    {
      int i, first;
      int i, first;
 
 
      first = n_switches;
      first = n_switches;
      n_switches += argbuf_index;
      n_switches += argbuf_index;
      switches = xrealloc (switches,
      switches = xrealloc (switches,
                           sizeof (struct switchstr) * (n_switches + 1));
                           sizeof (struct switchstr) * (n_switches + 1));
 
 
      switches[n_switches] = switches[first];
      switches[n_switches] = switches[first];
      for (i = 0; i < argbuf_index; i++)
      for (i = 0; i < argbuf_index; i++)
        {
        {
          struct switchstr *sw;
          struct switchstr *sw;
 
 
          /* Each switch should start with '-'.  */
          /* Each switch should start with '-'.  */
          if (argbuf[i][0] != '-')
          if (argbuf[i][0] != '-')
            fatal ("switch '%s' does not start with '-'", argbuf[i]);
            fatal ("switch '%s' does not start with '-'", argbuf[i]);
 
 
          sw = &switches[i + first];
          sw = &switches[i + first];
          sw->part1 = &argbuf[i][1];
          sw->part1 = &argbuf[i][1];
          sw->args = 0;
          sw->args = 0;
          sw->live_cond = SWITCH_OK;
          sw->live_cond = SWITCH_OK;
          sw->validated = 0;
          sw->validated = 0;
          sw->ordering = 0;
          sw->ordering = 0;
        }
        }
    }
    }
}
}
 
 
/* Callback for processing %D and %I specs.  */
/* Callback for processing %D and %I specs.  */
 
 
struct spec_path_info {
struct spec_path_info {
  const char *option;
  const char *option;
  const char *append;
  const char *append;
  size_t append_len;
  size_t append_len;
  bool omit_relative;
  bool omit_relative;
  bool separate_options;
  bool separate_options;
};
};
 
 
static void *
static void *
spec_path (char *path, void *data)
spec_path (char *path, void *data)
{
{
  struct spec_path_info *info = data;
  struct spec_path_info *info = data;
  size_t len = 0;
  size_t len = 0;
  char save = 0;
  char save = 0;
 
 
  if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
  if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
    return NULL;
    return NULL;
 
 
  if (info->append_len != 0)
  if (info->append_len != 0)
    {
    {
      len = strlen (path);
      len = strlen (path);
      memcpy (path + len, info->append, info->append_len + 1);
      memcpy (path + len, info->append, info->append_len + 1);
    }
    }
 
 
  if (!is_directory (path, true))
  if (!is_directory (path, true))
    return NULL;
    return NULL;
 
 
  do_spec_1 (info->option, 1, NULL);
  do_spec_1 (info->option, 1, NULL);
  if (info->separate_options)
  if (info->separate_options)
    do_spec_1 (" ", 0, NULL);
    do_spec_1 (" ", 0, NULL);
 
 
  if (info->append_len == 0)
  if (info->append_len == 0)
    {
    {
      len = strlen (path);
      len = strlen (path);
      save = path[len - 1];
      save = path[len - 1];
      if (IS_DIR_SEPARATOR (path[len - 1]))
      if (IS_DIR_SEPARATOR (path[len - 1]))
        path[len - 1] = '\0';
        path[len - 1] = '\0';
    }
    }
 
 
  do_spec_1 (path, 1, NULL);
  do_spec_1 (path, 1, NULL);
  do_spec_1 (" ", 0, NULL);
  do_spec_1 (" ", 0, NULL);
 
 
  /* Must not damage the original path.  */
  /* Must not damage the original path.  */
  if (info->append_len == 0)
  if (info->append_len == 0)
    path[len - 1] = save;
    path[len - 1] = save;
 
 
  return NULL;
  return NULL;
}
}
 
 
/* Process the sub-spec SPEC as a portion of a larger spec.
/* Process the sub-spec SPEC as a portion of a larger spec.
   This is like processing a whole spec except that we do
   This is like processing a whole spec except that we do
   not initialize at the beginning and we do not supply a
   not initialize at the beginning and we do not supply a
   newline by default at the end.
   newline by default at the end.
   INSWITCH nonzero means don't process %-sequences in SPEC;
   INSWITCH nonzero means don't process %-sequences in SPEC;
   in this case, % is treated as an ordinary character.
   in this case, % is treated as an ordinary character.
   This is used while substituting switches.
   This is used while substituting switches.
   INSWITCH nonzero also causes SPC not to terminate an argument.
   INSWITCH nonzero also causes SPC not to terminate an argument.
 
 
   Value is zero unless a line was finished
   Value is zero unless a line was finished
   and the command on that line reported an error.  */
   and the command on that line reported an error.  */
 
 
static int
static int
do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
{
{
  const char *p = spec;
  const char *p = spec;
  int c;
  int c;
  int i;
  int i;
  const char *string;
  const char *string;
  int value;
  int value;
 
 
  while ((c = *p++))
  while ((c = *p++))
    /* If substituting a switch, treat all chars like letters.
    /* If substituting a switch, treat all chars like letters.
       Otherwise, NL, SPC, TAB and % are special.  */
       Otherwise, NL, SPC, TAB and % are special.  */
    switch (inswitch ? 'a' : c)
    switch (inswitch ? 'a' : c)
      {
      {
      case '\n':
      case '\n':
        /* End of line: finish any pending argument,
        /* End of line: finish any pending argument,
           then run the pending command if one has been started.  */
           then run the pending command if one has been started.  */
        if (arg_going)
        if (arg_going)
          {
          {
            obstack_1grow (&obstack, 0);
            obstack_1grow (&obstack, 0);
            string = XOBFINISH (&obstack, const char *);
            string = XOBFINISH (&obstack, const char *);
            if (this_is_library_file)
            if (this_is_library_file)
              string = find_file (string);
              string = find_file (string);
            store_arg (string, delete_this_arg, this_is_output_file);
            store_arg (string, delete_this_arg, this_is_output_file);
            if (this_is_output_file)
            if (this_is_output_file)
              outfiles[input_file_number] = string;
              outfiles[input_file_number] = string;
          }
          }
        arg_going = 0;
        arg_going = 0;
 
 
        if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
        if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
          {
          {
            /* A `|' before the newline means use a pipe here,
            /* A `|' before the newline means use a pipe here,
               but only if -pipe was specified.
               but only if -pipe was specified.
               Otherwise, execute now and don't pass the `|' as an arg.  */
               Otherwise, execute now and don't pass the `|' as an arg.  */
            if (use_pipes)
            if (use_pipes)
              {
              {
                input_from_pipe = 1;
                input_from_pipe = 1;
                break;
                break;
              }
              }
            else
            else
              argbuf_index--;
              argbuf_index--;
          }
          }
 
 
        set_collect_gcc_options ();
        set_collect_gcc_options ();
 
 
        if (argbuf_index > 0)
        if (argbuf_index > 0)
          {
          {
            value = execute ();
            value = execute ();
            if (value)
            if (value)
              return value;
              return value;
          }
          }
        /* Reinitialize for a new command, and for a new argument.  */
        /* Reinitialize for a new command, and for a new argument.  */
        clear_args ();
        clear_args ();
        arg_going = 0;
        arg_going = 0;
        delete_this_arg = 0;
        delete_this_arg = 0;
        this_is_output_file = 0;
        this_is_output_file = 0;
        this_is_library_file = 0;
        this_is_library_file = 0;
        input_from_pipe = 0;
        input_from_pipe = 0;
        break;
        break;
 
 
      case '|':
      case '|':
        /* End any pending argument.  */
        /* End any pending argument.  */
        if (arg_going)
        if (arg_going)
          {
          {
            obstack_1grow (&obstack, 0);
            obstack_1grow (&obstack, 0);
            string = XOBFINISH (&obstack, const char *);
            string = XOBFINISH (&obstack, const char *);
            if (this_is_library_file)
            if (this_is_library_file)
              string = find_file (string);
              string = find_file (string);
            store_arg (string, delete_this_arg, this_is_output_file);
            store_arg (string, delete_this_arg, this_is_output_file);
            if (this_is_output_file)
            if (this_is_output_file)
              outfiles[input_file_number] = string;
              outfiles[input_file_number] = string;
          }
          }
 
 
        /* Use pipe */
        /* Use pipe */
        obstack_1grow (&obstack, c);
        obstack_1grow (&obstack, c);
        arg_going = 1;
        arg_going = 1;
        break;
        break;
 
 
      case '\t':
      case '\t':
      case ' ':
      case ' ':
        /* Space or tab ends an argument if one is pending.  */
        /* Space or tab ends an argument if one is pending.  */
        if (arg_going)
        if (arg_going)
          {
          {
            obstack_1grow (&obstack, 0);
            obstack_1grow (&obstack, 0);
            string = XOBFINISH (&obstack, const char *);
            string = XOBFINISH (&obstack, const char *);
            if (this_is_library_file)
            if (this_is_library_file)
              string = find_file (string);
              string = find_file (string);
            store_arg (string, delete_this_arg, this_is_output_file);
            store_arg (string, delete_this_arg, this_is_output_file);
            if (this_is_output_file)
            if (this_is_output_file)
              outfiles[input_file_number] = string;
              outfiles[input_file_number] = string;
          }
          }
        /* Reinitialize for a new argument.  */
        /* Reinitialize for a new argument.  */
        arg_going = 0;
        arg_going = 0;
        delete_this_arg = 0;
        delete_this_arg = 0;
        this_is_output_file = 0;
        this_is_output_file = 0;
        this_is_library_file = 0;
        this_is_library_file = 0;
        break;
        break;
 
 
      case '%':
      case '%':
        switch (c = *p++)
        switch (c = *p++)
          {
          {
          case 0:
          case 0:
            fatal ("spec '%s' invalid", spec);
            fatal ("spec '%s' invalid", spec);
 
 
          case 'b':
          case 'b':
            obstack_grow (&obstack, input_basename, basename_length);
            obstack_grow (&obstack, input_basename, basename_length);
            arg_going = 1;
            arg_going = 1;
            break;
            break;
 
 
          case 'B':
          case 'B':
            obstack_grow (&obstack, input_basename, suffixed_basename_length);
            obstack_grow (&obstack, input_basename, suffixed_basename_length);
            arg_going = 1;
            arg_going = 1;
            break;
            break;
 
 
          case 'd':
          case 'd':
            delete_this_arg = 2;
            delete_this_arg = 2;
            break;
            break;
 
 
          /* Dump out the directories specified with LIBRARY_PATH,
          /* Dump out the directories specified with LIBRARY_PATH,
             followed by the absolute directories
             followed by the absolute directories
             that we search for startfiles.  */
             that we search for startfiles.  */
          case 'D':
          case 'D':
            {
            {
              struct spec_path_info info;
              struct spec_path_info info;
 
 
              info.option = "-L";
              info.option = "-L";
              info.append_len = 0;
              info.append_len = 0;
#ifdef RELATIVE_PREFIX_NOT_LINKDIR
#ifdef RELATIVE_PREFIX_NOT_LINKDIR
              /* Used on systems which record the specified -L dirs
              /* Used on systems which record the specified -L dirs
                 and use them to search for dynamic linking.
                 and use them to search for dynamic linking.
                 Relative directories always come from -B,
                 Relative directories always come from -B,
                 and it is better not to use them for searching
                 and it is better not to use them for searching
                 at run time.  In particular, stage1 loses.  */
                 at run time.  In particular, stage1 loses.  */
              info.omit_relative = true;
              info.omit_relative = true;
#else
#else
              info.omit_relative = false;
              info.omit_relative = false;
#endif
#endif
              info.separate_options = false;
              info.separate_options = false;
 
 
              for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
              for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
            }
            }
            break;
            break;
 
 
          case 'e':
          case 'e':
            /* %efoo means report an error with `foo' as error message
            /* %efoo means report an error with `foo' as error message
               and don't execute any more commands for this file.  */
               and don't execute any more commands for this file.  */
            {
            {
              const char *q = p;
              const char *q = p;
              char *buf;
              char *buf;
              while (*p != 0 && *p != '\n')
              while (*p != 0 && *p != '\n')
                p++;
                p++;
              buf = alloca (p - q + 1);
              buf = alloca (p - q + 1);
              strncpy (buf, q, p - q);
              strncpy (buf, q, p - q);
              buf[p - q] = 0;
              buf[p - q] = 0;
              error ("%s", buf);
              error ("%s", buf);
              return -1;
              return -1;
            }
            }
            break;
            break;
          case 'n':
          case 'n':
            /* %nfoo means report a notice with `foo' on stderr.  */
            /* %nfoo means report a notice with `foo' on stderr.  */
            {
            {
              const char *q = p;
              const char *q = p;
              char *buf;
              char *buf;
              while (*p != 0 && *p != '\n')
              while (*p != 0 && *p != '\n')
                p++;
                p++;
              buf = alloca (p - q + 1);
              buf = alloca (p - q + 1);
              strncpy (buf, q, p - q);
              strncpy (buf, q, p - q);
              buf[p - q] = 0;
              buf[p - q] = 0;
              notice ("%s\n", buf);
              notice ("%s\n", buf);
              if (*p)
              if (*p)
                p++;
                p++;
            }
            }
            break;
            break;
 
 
          case 'j':
          case 'j':
            {
            {
              struct stat st;
              struct stat st;
 
 
              /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
              /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
                 defined, and it is not a directory, and it is
                 defined, and it is not a directory, and it is
                 writable, use it.  Otherwise, treat this like any
                 writable, use it.  Otherwise, treat this like any
                 other temporary file.  */
                 other temporary file.  */
 
 
              if ((!save_temps_flag)
              if ((!save_temps_flag)
                  && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
                  && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
                  && (access (HOST_BIT_BUCKET, W_OK) == 0))
                  && (access (HOST_BIT_BUCKET, W_OK) == 0))
                {
                {
                  obstack_grow (&obstack, HOST_BIT_BUCKET,
                  obstack_grow (&obstack, HOST_BIT_BUCKET,
                                strlen (HOST_BIT_BUCKET));
                                strlen (HOST_BIT_BUCKET));
                  delete_this_arg = 0;
                  delete_this_arg = 0;
                  arg_going = 1;
                  arg_going = 1;
                  break;
                  break;
                }
                }
            }
            }
            goto create_temp_file;
            goto create_temp_file;
          case '|':
          case '|':
            if (use_pipes)
            if (use_pipes)
              {
              {
                obstack_1grow (&obstack, '-');
                obstack_1grow (&obstack, '-');
                delete_this_arg = 0;
                delete_this_arg = 0;
                arg_going = 1;
                arg_going = 1;
 
 
                /* consume suffix */
                /* consume suffix */
                while (*p == '.' || ISALNUM ((unsigned char) *p))
                while (*p == '.' || ISALNUM ((unsigned char) *p))
                  p++;
                  p++;
                if (p[0] == '%' && p[1] == 'O')
                if (p[0] == '%' && p[1] == 'O')
                  p += 2;
                  p += 2;
 
 
                break;
                break;
              }
              }
            goto create_temp_file;
            goto create_temp_file;
          case 'm':
          case 'm':
            if (use_pipes)
            if (use_pipes)
              {
              {
                /* consume suffix */
                /* consume suffix */
                while (*p == '.' || ISALNUM ((unsigned char) *p))
                while (*p == '.' || ISALNUM ((unsigned char) *p))
                  p++;
                  p++;
                if (p[0] == '%' && p[1] == 'O')
                if (p[0] == '%' && p[1] == 'O')
                  p += 2;
                  p += 2;
 
 
                break;
                break;
              }
              }
            goto create_temp_file;
            goto create_temp_file;
          case 'g':
          case 'g':
          case 'u':
          case 'u':
          case 'U':
          case 'U':
          create_temp_file:
          create_temp_file:
              {
              {
                struct temp_name *t;
                struct temp_name *t;
                int suffix_length;
                int suffix_length;
                const char *suffix = p;
                const char *suffix = p;
                char *saved_suffix = NULL;
                char *saved_suffix = NULL;
 
 
                while (*p == '.' || ISALNUM ((unsigned char) *p))
                while (*p == '.' || ISALNUM ((unsigned char) *p))
                  p++;
                  p++;
                suffix_length = p - suffix;
                suffix_length = p - suffix;
                if (p[0] == '%' && p[1] == 'O')
                if (p[0] == '%' && p[1] == 'O')
                  {
                  {
                    p += 2;
                    p += 2;
                    /* We don't support extra suffix characters after %O.  */
                    /* We don't support extra suffix characters after %O.  */
                    if (*p == '.' || ISALNUM ((unsigned char) *p))
                    if (*p == '.' || ISALNUM ((unsigned char) *p))
                      fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
                      fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
                    if (suffix_length == 0)
                    if (suffix_length == 0)
                      suffix = TARGET_OBJECT_SUFFIX;
                      suffix = TARGET_OBJECT_SUFFIX;
                    else
                    else
                      {
                      {
                        saved_suffix
                        saved_suffix
                          = XNEWVEC (char, suffix_length
                          = XNEWVEC (char, suffix_length
                                     + strlen (TARGET_OBJECT_SUFFIX));
                                     + strlen (TARGET_OBJECT_SUFFIX));
                        strncpy (saved_suffix, suffix, suffix_length);
                        strncpy (saved_suffix, suffix, suffix_length);
                        strcpy (saved_suffix + suffix_length,
                        strcpy (saved_suffix + suffix_length,
                                TARGET_OBJECT_SUFFIX);
                                TARGET_OBJECT_SUFFIX);
                      }
                      }
                    suffix_length += strlen (TARGET_OBJECT_SUFFIX);
                    suffix_length += strlen (TARGET_OBJECT_SUFFIX);
                  }
                  }
 
 
                /* If the input_filename has the same suffix specified
                /* If the input_filename has the same suffix specified
                   for the %g, %u, or %U, and -save-temps is specified,
                   for the %g, %u, or %U, and -save-temps is specified,
                   we could end up using that file as an intermediate
                   we could end up using that file as an intermediate
                   thus clobbering the user's source file (.e.g.,
                   thus clobbering the user's source file (.e.g.,
                   gcc -save-temps foo.s would clobber foo.s with the
                   gcc -save-temps foo.s would clobber foo.s with the
                   output of cpp0).  So check for this condition and
                   output of cpp0).  So check for this condition and
                   generate a temp file as the intermediate.  */
                   generate a temp file as the intermediate.  */
 
 
                if (save_temps_flag)
                if (save_temps_flag)
                  {
                  {
                    temp_filename_length = basename_length + suffix_length;
                    temp_filename_length = basename_length + suffix_length;
                    temp_filename = alloca (temp_filename_length + 1);
                    temp_filename = alloca (temp_filename_length + 1);
                    strncpy ((char *) temp_filename, input_basename, basename_length);
                    strncpy ((char *) temp_filename, input_basename, basename_length);
                    strncpy ((char *) temp_filename + basename_length, suffix,
                    strncpy ((char *) temp_filename + basename_length, suffix,
                             suffix_length);
                             suffix_length);
                    *((char *) temp_filename + temp_filename_length) = '\0';
                    *((char *) temp_filename + temp_filename_length) = '\0';
                    if (strcmp (temp_filename, input_filename) != 0)
                    if (strcmp (temp_filename, input_filename) != 0)
                      {
                      {
#ifndef HOST_LACKS_INODE_NUMBERS
#ifndef HOST_LACKS_INODE_NUMBERS
                        struct stat st_temp;
                        struct stat st_temp;
 
 
                        /* Note, set_input() resets input_stat_set to 0.  */
                        /* Note, set_input() resets input_stat_set to 0.  */
                        if (input_stat_set == 0)
                        if (input_stat_set == 0)
                          {
                          {
                            input_stat_set = stat (input_filename, &input_stat);
                            input_stat_set = stat (input_filename, &input_stat);
                            if (input_stat_set >= 0)
                            if (input_stat_set >= 0)
                              input_stat_set = 1;
                              input_stat_set = 1;
                          }
                          }
 
 
                        /* If we have the stat for the input_filename
                        /* If we have the stat for the input_filename
                           and we can do the stat for the temp_filename
                           and we can do the stat for the temp_filename
                           then the they could still refer to the same
                           then the they could still refer to the same
                           file if st_dev/st_ino's are the same.  */
                           file if st_dev/st_ino's are the same.  */
                        if (input_stat_set != 1
                        if (input_stat_set != 1
                            || stat (temp_filename, &st_temp) < 0
                            || stat (temp_filename, &st_temp) < 0
                            || input_stat.st_dev != st_temp.st_dev
                            || input_stat.st_dev != st_temp.st_dev
                            || input_stat.st_ino != st_temp.st_ino)
                            || input_stat.st_ino != st_temp.st_ino)
#else
#else
                        /* Just compare canonical pathnames.  */
                        /* Just compare canonical pathnames.  */
                        char* input_realname = lrealpath (input_filename);
                        char* input_realname = lrealpath (input_filename);
                        char* temp_realname = lrealpath (temp_filename);
                        char* temp_realname = lrealpath (temp_filename);
                        bool files_differ = strcmp (input_realname, temp_realname);
                        bool files_differ = strcmp (input_realname, temp_realname);
                        free (input_realname);
                        free (input_realname);
                        free (temp_realname);
                        free (temp_realname);
                        if (files_differ)
                        if (files_differ)
#endif
#endif
                          {
                          {
                            temp_filename = save_string (temp_filename,
                            temp_filename = save_string (temp_filename,
                                                         temp_filename_length + 1);
                                                         temp_filename_length + 1);
                            obstack_grow (&obstack, temp_filename,
                            obstack_grow (&obstack, temp_filename,
                                                    temp_filename_length);
                                                    temp_filename_length);
                            arg_going = 1;
                            arg_going = 1;
                            delete_this_arg = 0;
                            delete_this_arg = 0;
                            break;
                            break;
                          }
                          }
                      }
                      }
                  }
                  }
 
 
                /* See if we already have an association of %g/%u/%U and
                /* See if we already have an association of %g/%u/%U and
                   suffix.  */
                   suffix.  */
                for (t = temp_names; t; t = t->next)
                for (t = temp_names; t; t = t->next)
                  if (t->length == suffix_length
                  if (t->length == suffix_length
                      && strncmp (t->suffix, suffix, suffix_length) == 0
                      && strncmp (t->suffix, suffix, suffix_length) == 0
                      && t->unique == (c == 'u' || c == 'U' || c == 'j'))
                      && t->unique == (c == 'u' || c == 'U' || c == 'j'))
                    break;
                    break;
 
 
                /* Make a new association if needed.  %u and %j
                /* Make a new association if needed.  %u and %j
                   require one.  */
                   require one.  */
                if (t == 0 || c == 'u' || c == 'j')
                if (t == 0 || c == 'u' || c == 'j')
                  {
                  {
                    if (t == 0)
                    if (t == 0)
                      {
                      {
                        t = xmalloc (sizeof (struct temp_name));
                        t = xmalloc (sizeof (struct temp_name));
                        t->next = temp_names;
                        t->next = temp_names;
                        temp_names = t;
                        temp_names = t;
                      }
                      }
                    t->length = suffix_length;
                    t->length = suffix_length;
                    if (saved_suffix)
                    if (saved_suffix)
                      {
                      {
                        t->suffix = saved_suffix;
                        t->suffix = saved_suffix;
                        saved_suffix = NULL;
                        saved_suffix = NULL;
                      }
                      }
                    else
                    else
                      t->suffix = save_string (suffix, suffix_length);
                      t->suffix = save_string (suffix, suffix_length);
                    t->unique = (c == 'u' || c == 'U' || c == 'j');
                    t->unique = (c == 'u' || c == 'U' || c == 'j');
                    temp_filename = make_temp_file (t->suffix);
                    temp_filename = make_temp_file (t->suffix);
                    temp_filename_length = strlen (temp_filename);
                    temp_filename_length = strlen (temp_filename);
                    t->filename = temp_filename;
                    t->filename = temp_filename;
                    t->filename_length = temp_filename_length;
                    t->filename_length = temp_filename_length;
                  }
                  }
 
 
                if (saved_suffix)
                if (saved_suffix)
                  free (saved_suffix);
                  free (saved_suffix);
 
 
                obstack_grow (&obstack, t->filename, t->filename_length);
                obstack_grow (&obstack, t->filename, t->filename_length);
                delete_this_arg = 1;
                delete_this_arg = 1;
              }
              }
            arg_going = 1;
            arg_going = 1;
            break;
            break;
 
 
          case 'i':
          case 'i':
            if (combine_inputs)
            if (combine_inputs)
              {
              {
                for (i = 0; (int) i < n_infiles; i++)
                for (i = 0; (int) i < n_infiles; i++)
                  if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
                  if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
                    if (infiles[i].incompiler == input_file_compiler)
                    if (infiles[i].incompiler == input_file_compiler)
                      {
                      {
                        store_arg (infiles[i].name, 0, 0);
                        store_arg (infiles[i].name, 0, 0);
                        infiles[i].compiled = true;
                        infiles[i].compiled = true;
                      }
                      }
              }
              }
            else
            else
              {
              {
                obstack_grow (&obstack, input_filename, input_filename_length);
                obstack_grow (&obstack, input_filename, input_filename_length);
                arg_going = 1;
                arg_going = 1;
              }
              }
            break;
            break;
 
 
          case 'I':
          case 'I':
            {
            {
              struct spec_path_info info;
              struct spec_path_info info;
 
 
              if (multilib_dir)
              if (multilib_dir)
                {
                {
                  do_spec_1 ("-imultilib", 1, NULL);
                  do_spec_1 ("-imultilib", 1, NULL);
                  /* Make this a separate argument.  */
                  /* Make this a separate argument.  */
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (multilib_dir, 1, NULL);
                  do_spec_1 (multilib_dir, 1, NULL);
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (" ", 0, NULL);
                }
                }
 
 
              if (gcc_exec_prefix)
              if (gcc_exec_prefix)
                {
                {
                  do_spec_1 ("-iprefix", 1, NULL);
                  do_spec_1 ("-iprefix", 1, NULL);
                  /* Make this a separate argument.  */
                  /* Make this a separate argument.  */
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (gcc_exec_prefix, 1, NULL);
                  do_spec_1 (gcc_exec_prefix, 1, NULL);
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (" ", 0, NULL);
                }
                }
 
 
              if (target_system_root_changed ||
              if (target_system_root_changed ||
                  (target_system_root && target_sysroot_hdrs_suffix))
                  (target_system_root && target_sysroot_hdrs_suffix))
                {
                {
                  do_spec_1 ("-isysroot", 1, NULL);
                  do_spec_1 ("-isysroot", 1, NULL);
                  /* Make this a separate argument.  */
                  /* Make this a separate argument.  */
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (target_system_root, 1, NULL);
                  do_spec_1 (target_system_root, 1, NULL);
                  if (target_sysroot_hdrs_suffix)
                  if (target_sysroot_hdrs_suffix)
                    do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
                    do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
                  do_spec_1 (" ", 0, NULL);
                  do_spec_1 (" ", 0, NULL);
                }
                }
 
 
              info.option = "-isystem";
              info.option = "-isystem";
              info.append = "include";
              info.append = "include";
              info.append_len = strlen (info.append);
              info.append_len = strlen (info.append);
              info.omit_relative = false;
              info.omit_relative = false;
              info.separate_options = true;
              info.separate_options = true;
 
 
              for_each_path (&include_prefixes, false, info.append_len,
              for_each_path (&include_prefixes, false, info.append_len,
                             spec_path, &info);
                             spec_path, &info);
            }
            }
            break;
            break;
 
 
          case 'o':
          case 'o':
            {
            {
              int max = n_infiles;
              int max = n_infiles;
              max += lang_specific_extra_outfiles;
              max += lang_specific_extra_outfiles;
 
 
              for (i = 0; i < max; i++)
              for (i = 0; i < max; i++)
                if (outfiles[i])
                if (outfiles[i])
                  store_arg (outfiles[i], 0, 0);
                  store_arg (outfiles[i], 0, 0);
              break;
              break;
            }
            }
 
 
          case 'O':
          case 'O':
            obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
            obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
            arg_going = 1;
            arg_going = 1;
            break;
            break;
 
 
          case 's':
          case 's':
            this_is_library_file = 1;
            this_is_library_file = 1;
            break;
            break;
 
 
          case 'V':
          case 'V':
            outfiles[input_file_number] = NULL;
            outfiles[input_file_number] = NULL;
            break;
            break;
 
 
          case 'w':
          case 'w':
            this_is_output_file = 1;
            this_is_output_file = 1;
            break;
            break;
 
 
          case 'W':
          case 'W':
            {
            {
              int cur_index = argbuf_index;
              int cur_index = argbuf_index;
              /* Handle the {...} following the %W.  */
              /* Handle the {...} following the %W.  */
              if (*p != '{')
              if (*p != '{')
                fatal ("spec '%s' has invalid '%%W%c", spec, *p);
                fatal ("spec '%s' has invalid '%%W%c", spec, *p);
              p = handle_braces (p + 1);
              p = handle_braces (p + 1);
              if (p == 0)
              if (p == 0)
                return -1;
                return -1;
              /* End any pending argument.  */
              /* End any pending argument.  */
              if (arg_going)
              if (arg_going)
                {
                {
                  obstack_1grow (&obstack, 0);
                  obstack_1grow (&obstack, 0);
                  string = XOBFINISH (&obstack, const char *);
                  string = XOBFINISH (&obstack, const char *);
                  if (this_is_library_file)
                  if (this_is_library_file)
                    string = find_file (string);
                    string = find_file (string);
                  store_arg (string, delete_this_arg, this_is_output_file);
                  store_arg (string, delete_this_arg, this_is_output_file);
                  if (this_is_output_file)
                  if (this_is_output_file)
                    outfiles[input_file_number] = string;
                    outfiles[input_file_number] = string;
                  arg_going = 0;
                  arg_going = 0;
                }
                }
              /* If any args were output, mark the last one for deletion
              /* If any args were output, mark the last one for deletion
                 on failure.  */
                 on failure.  */
              if (argbuf_index != cur_index)
              if (argbuf_index != cur_index)
                record_temp_file (argbuf[argbuf_index - 1], 0, 1);
                record_temp_file (argbuf[argbuf_index - 1], 0, 1);
              break;
              break;
            }
            }
 
 
          /* %x{OPTION} records OPTION for %X to output.  */
          /* %x{OPTION} records OPTION for %X to output.  */
          case 'x':
          case 'x':
            {
            {
              const char *p1 = p;
              const char *p1 = p;
              char *string;
              char *string;
 
 
              /* Skip past the option value and make a copy.  */
              /* Skip past the option value and make a copy.  */
              if (*p != '{')
              if (*p != '{')
                fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
                fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
              while (*p++ != '}')
              while (*p++ != '}')
                ;
                ;
              string = save_string (p1 + 1, p - p1 - 2);
              string = save_string (p1 + 1, p - p1 - 2);
 
 
              /* See if we already recorded this option.  */
              /* See if we already recorded this option.  */
              for (i = 0; i < n_linker_options; i++)
              for (i = 0; i < n_linker_options; i++)
                if (! strcmp (string, linker_options[i]))
                if (! strcmp (string, linker_options[i]))
                  {
                  {
                    free (string);
                    free (string);
                    return 0;
                    return 0;
                  }
                  }
 
 
              /* This option is new; add it.  */
              /* This option is new; add it.  */
              add_linker_option (string, strlen (string));
              add_linker_option (string, strlen (string));
            }
            }
            break;
            break;
 
 
          /* Dump out the options accumulated previously using %x.  */
          /* Dump out the options accumulated previously using %x.  */
          case 'X':
          case 'X':
            for (i = 0; i < n_linker_options; i++)
            for (i = 0; i < n_linker_options; i++)
              {
              {
                do_spec_1 (linker_options[i], 1, NULL);
                do_spec_1 (linker_options[i], 1, NULL);
                /* Make each accumulated option a separate argument.  */
                /* Make each accumulated option a separate argument.  */
                do_spec_1 (" ", 0, NULL);
                do_spec_1 (" ", 0, NULL);
              }
              }
            break;
            break;
 
 
          /* Dump out the options accumulated previously using -Wa,.  */
          /* Dump out the options accumulated previously using -Wa,.  */
          case 'Y':
          case 'Y':
            for (i = 0; i < n_assembler_options; i++)
            for (i = 0; i < n_assembler_options; i++)
              {
              {
                do_spec_1 (assembler_options[i], 1, NULL);
                do_spec_1 (assembler_options[i], 1, NULL);
                /* Make each accumulated option a separate argument.  */
                /* Make each accumulated option a separate argument.  */
                do_spec_1 (" ", 0, NULL);
                do_spec_1 (" ", 0, NULL);
              }
              }
            break;
            break;
 
 
          /* Dump out the options accumulated previously using -Wp,.  */
          /* Dump out the options accumulated previously using -Wp,.  */
          case 'Z':
          case 'Z':
            for (i = 0; i < n_preprocessor_options; i++)
            for (i = 0; i < n_preprocessor_options; i++)
              {
              {
                do_spec_1 (preprocessor_options[i], 1, NULL);
                do_spec_1 (preprocessor_options[i], 1, NULL);
                /* Make each accumulated option a separate argument.  */
                /* Make each accumulated option a separate argument.  */
                do_spec_1 (" ", 0, NULL);
                do_spec_1 (" ", 0, NULL);
              }
              }
            break;
            break;
 
 
            /* Here are digits and numbers that just process
            /* Here are digits and numbers that just process
               a certain constant string as a spec.  */
               a certain constant string as a spec.  */
 
 
          case '1':
          case '1':
            value = do_spec_1 (cc1_spec, 0, NULL);
            value = do_spec_1 (cc1_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
          case '2':
          case '2':
            value = do_spec_1 (cc1plus_spec, 0, NULL);
            value = do_spec_1 (cc1plus_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
          case 'a':
          case 'a':
            value = do_spec_1 (asm_spec, 0, NULL);
            value = do_spec_1 (asm_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
          case 'A':
          case 'A':
            value = do_spec_1 (asm_final_spec, 0, NULL);
            value = do_spec_1 (asm_final_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
          case 'C':
          case 'C':
            {
            {
              const char *const spec
              const char *const spec
                = (input_file_compiler->cpp_spec
                = (input_file_compiler->cpp_spec
                   ? input_file_compiler->cpp_spec
                   ? input_file_compiler->cpp_spec
                   : cpp_spec);
                   : cpp_spec);
              value = do_spec_1 (spec, 0, NULL);
              value = do_spec_1 (spec, 0, NULL);
              if (value != 0)
              if (value != 0)
                return value;
                return value;
            }
            }
            break;
            break;
 
 
          case 'E':
          case 'E':
            value = do_spec_1 (endfile_spec, 0, NULL);
            value = do_spec_1 (endfile_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
          case 'l':
          case 'l':
            value = do_spec_1 (link_spec, 0, NULL);
            value = do_spec_1 (link_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
          case 'L':
          case 'L':
            value = do_spec_1 (lib_spec, 0, NULL);
            value = do_spec_1 (lib_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
          case 'G':
          case 'G':
            value = do_spec_1 (libgcc_spec, 0, NULL);
            value = do_spec_1 (libgcc_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
          case 'R':
          case 'R':
            /* We assume there is a directory
            /* We assume there is a directory
               separator at the end of this string.  */
               separator at the end of this string.  */
            if (target_system_root)
            if (target_system_root)
              {
              {
                obstack_grow (&obstack, target_system_root,
                obstack_grow (&obstack, target_system_root,
                              strlen (target_system_root));
                              strlen (target_system_root));
                if (target_sysroot_suffix)
                if (target_sysroot_suffix)
                  obstack_grow (&obstack, target_sysroot_suffix,
                  obstack_grow (&obstack, target_sysroot_suffix,
                                strlen (target_sysroot_suffix));
                                strlen (target_sysroot_suffix));
              }
              }
            break;
            break;
 
 
          case 'S':
          case 'S':
            value = do_spec_1 (startfile_spec, 0, NULL);
            value = do_spec_1 (startfile_spec, 0, NULL);
            if (value != 0)
            if (value != 0)
              return value;
              return value;
            break;
            break;
 
 
            /* Here we define characters other than letters and digits.  */
            /* Here we define characters other than letters and digits.  */
 
 
          case '{':
          case '{':
            p = handle_braces (p);
            p = handle_braces (p);
            if (p == 0)
            if (p == 0)
              return -1;
              return -1;
            break;
            break;
 
 
          case ':':
          case ':':
            p = handle_spec_function (p);
            p = handle_spec_function (p);
            if (p == 0)
            if (p == 0)
              return -1;
              return -1;
            break;
            break;
 
 
          case '%':
          case '%':
            obstack_1grow (&obstack, '%');
            obstack_1grow (&obstack, '%');
            break;
            break;
 
 
          case '.':
          case '.':
            {
            {
              unsigned len = 0;
              unsigned len = 0;
 
 
              while (p[len] && p[len] != ' ' && p[len] != '%')
              while (p[len] && p[len] != ' ' && p[len] != '%')
                len++;
                len++;
              suffix_subst = save_string (p - 1, len + 1);
              suffix_subst = save_string (p - 1, len + 1);
              p += len;
              p += len;
            }
            }
           break;
           break;
 
 
           /* Henceforth ignore the option(s) matching the pattern
           /* Henceforth ignore the option(s) matching the pattern
              after the %<.  */
              after the %<.  */
          case '<':
          case '<':
            {
            {
              unsigned len = 0;
              unsigned len = 0;
              int have_wildcard = 0;
              int have_wildcard = 0;
              int i;
              int i;
 
 
              while (p[len] && p[len] != ' ' && p[len] != '\t')
              while (p[len] && p[len] != ' ' && p[len] != '\t')
                len++;
                len++;
 
 
              if (p[len-1] == '*')
              if (p[len-1] == '*')
                have_wildcard = 1;
                have_wildcard = 1;
 
 
              for (i = 0; i < n_switches; i++)
              for (i = 0; i < n_switches; i++)
                if (!strncmp (switches[i].part1, p, len - have_wildcard)
                if (!strncmp (switches[i].part1, p, len - have_wildcard)
                    && (have_wildcard || switches[i].part1[len] == '\0'))
                    && (have_wildcard || switches[i].part1[len] == '\0'))
                  {
                  {
                    switches[i].live_cond = SWITCH_IGNORE;
                    switches[i].live_cond = SWITCH_IGNORE;
                    switches[i].validated = 1;
                    switches[i].validated = 1;
                  }
                  }
 
 
              p += len;
              p += len;
            }
            }
            break;
            break;
 
 
          case '*':
          case '*':
            if (soft_matched_part)
            if (soft_matched_part)
              {
              {
                do_spec_1 (soft_matched_part, 1, NULL);
                do_spec_1 (soft_matched_part, 1, NULL);
                do_spec_1 (" ", 0, NULL);
                do_spec_1 (" ", 0, NULL);
              }
              }
            else
            else
              /* Catch the case where a spec string contains something like
              /* Catch the case where a spec string contains something like
                 '%{foo:%*}'.  i.e. there is no * in the pattern on the left
                 '%{foo:%*}'.  i.e. there is no * in the pattern on the left
                 hand side of the :.  */
                 hand side of the :.  */
              error ("spec failure: '%%*' has not been initialized by pattern match");
              error ("spec failure: '%%*' has not been initialized by pattern match");
            break;
            break;
 
 
            /* Process a string found as the value of a spec given by name.
            /* Process a string found as the value of a spec given by name.
               This feature allows individual machine descriptions
               This feature allows individual machine descriptions
               to add and use their own specs.
               to add and use their own specs.
               %[...] modifies -D options the way %P does;
               %[...] modifies -D options the way %P does;
               %(...) uses the spec unmodified.  */
               %(...) uses the spec unmodified.  */
          case '[':
          case '[':
            error ("warning: use of obsolete %%[ operator in specs");
            error ("warning: use of obsolete %%[ operator in specs");
          case '(':
          case '(':
            {
            {
              const char *name = p;
              const char *name = p;
              struct spec_list *sl;
              struct spec_list *sl;
              int len;
              int len;
 
 
              /* The string after the S/P is the name of a spec that is to be
              /* The string after the S/P is the name of a spec that is to be
                 processed.  */
                 processed.  */
              while (*p && *p != ')' && *p != ']')
              while (*p && *p != ')' && *p != ']')
                p++;
                p++;
 
 
              /* See if it's in the list.  */
              /* See if it's in the list.  */
              for (len = p - name, sl = specs; sl; sl = sl->next)
              for (len = p - name, sl = specs; sl; sl = sl->next)
                if (sl->name_len == len && !strncmp (sl->name, name, len))
                if (sl->name_len == len && !strncmp (sl->name, name, len))
                  {
                  {
                    name = *(sl->ptr_spec);
                    name = *(sl->ptr_spec);
#ifdef DEBUG_SPECS
#ifdef DEBUG_SPECS
                    notice ("Processing spec %c%s%c, which is '%s'\n",
                    notice ("Processing spec %c%s%c, which is '%s'\n",
                            c, sl->name, (c == '(') ? ')' : ']', name);
                            c, sl->name, (c == '(') ? ')' : ']', name);
#endif
#endif
                    break;
                    break;
                  }
                  }
 
 
              if (sl)
              if (sl)
                {
                {
                  if (c == '(')
                  if (c == '(')
                    {
                    {
                      value = do_spec_1 (name, 0, NULL);
                      value = do_spec_1 (name, 0, NULL);
                      if (value != 0)
                      if (value != 0)
                        return value;
                        return value;
                    }
                    }
                  else
                  else
                    {
                    {
                      char *x = alloca (strlen (name) * 2 + 1);
                      char *x = alloca (strlen (name) * 2 + 1);
                      char *buf = x;
                      char *buf = x;
                      const char *y = name;
                      const char *y = name;
                      int flag = 0;
                      int flag = 0;
 
 
                      /* Copy all of NAME into BUF, but put __ after
                      /* Copy all of NAME into BUF, but put __ after
                         every -D and at the end of each arg.  */
                         every -D and at the end of each arg.  */
                      while (1)
                      while (1)
                        {
                        {
                          if (! strncmp (y, "-D", 2))
                          if (! strncmp (y, "-D", 2))
                            {
                            {
                              *x++ = '-';
                              *x++ = '-';
                              *x++ = 'D';
                              *x++ = 'D';
                              *x++ = '_';
                              *x++ = '_';
                              *x++ = '_';
                              *x++ = '_';
                              y += 2;
                              y += 2;
                              flag = 1;
                              flag = 1;
                              continue;
                              continue;
                            }
                            }
                          else if (flag
                          else if (flag
                                   && (*y == ' ' || *y == '\t' || *y == '='
                                   && (*y == ' ' || *y == '\t' || *y == '='
                                       || *y == '}' || *y == 0))
                                       || *y == '}' || *y == 0))
                            {
                            {
                              *x++ = '_';
                              *x++ = '_';
                              *x++ = '_';
                              *x++ = '_';
                              flag = 0;
                              flag = 0;
                            }
                            }
                          if (*y == 0)
                          if (*y == 0)
                            break;
                            break;
                          else
                          else
                            *x++ = *y++;
                            *x++ = *y++;
                        }
                        }
                      *x = 0;
                      *x = 0;
 
 
                      value = do_spec_1 (buf, 0, NULL);
                      value = do_spec_1 (buf, 0, NULL);
                      if (value != 0)
                      if (value != 0)
                        return value;
                        return value;
                    }
                    }
                }
                }
 
 
              /* Discard the closing paren or bracket.  */
              /* Discard the closing paren or bracket.  */
              if (*p)
              if (*p)
                p++;
                p++;
            }
            }
            break;
            break;
 
 
          default:
          default:
            error ("spec failure: unrecognized spec option '%c'", c);
            error ("spec failure: unrecognized spec option '%c'", c);
            break;
            break;
          }
          }
        break;
        break;
 
 
      case '\\':
      case '\\':
        /* Backslash: treat next character as ordinary.  */
        /* Backslash: treat next character as ordinary.  */
        c = *p++;
        c = *p++;
 
 
        /* Fall through.  */
        /* Fall through.  */
      default:
      default:
        /* Ordinary character: put it into the current argument.  */
        /* Ordinary character: put it into the current argument.  */
        obstack_1grow (&obstack, c);
        obstack_1grow (&obstack, c);
        arg_going = 1;
        arg_going = 1;
      }
      }
 
 
  /* End of string.  If we are processing a spec function, we need to
  /* End of string.  If we are processing a spec function, we need to
     end any pending argument.  */
     end any pending argument.  */
  if (processing_spec_function && arg_going)
  if (processing_spec_function && arg_going)
    {
    {
      obstack_1grow (&obstack, 0);
      obstack_1grow (&obstack, 0);
      string = XOBFINISH (&obstack, const char *);
      string = XOBFINISH (&obstack, const char *);
      if (this_is_library_file)
      if (this_is_library_file)
        string = find_file (string);
        string = find_file (string);
      store_arg (string, delete_this_arg, this_is_output_file);
      store_arg (string, delete_this_arg, this_is_output_file);
      if (this_is_output_file)
      if (this_is_output_file)
        outfiles[input_file_number] = string;
        outfiles[input_file_number] = string;
      arg_going = 0;
      arg_going = 0;
    }
    }
 
 
  return 0;
  return 0;
}
}
 
 
/* Look up a spec function.  */
/* Look up a spec function.  */
 
 
static const struct spec_function *
static const struct spec_function *
lookup_spec_function (const char *name)
lookup_spec_function (const char *name)
{
{
  const struct spec_function *sf;
  const struct spec_function *sf;
 
 
  for (sf = static_spec_functions; sf->name != NULL; sf++)
  for (sf = static_spec_functions; sf->name != NULL; sf++)
    if (strcmp (sf->name, name) == 0)
    if (strcmp (sf->name, name) == 0)
      return sf;
      return sf;
 
 
  return NULL;
  return NULL;
}
}
 
 
/* Evaluate a spec function.  */
/* Evaluate a spec function.  */
 
 
static const char *
static const char *
eval_spec_function (const char *func, const char *args)
eval_spec_function (const char *func, const char *args)
{
{
  const struct spec_function *sf;
  const struct spec_function *sf;
  const char *funcval;
  const char *funcval;
 
 
  /* Saved spec processing context.  */
  /* Saved spec processing context.  */
  int save_argbuf_index;
  int save_argbuf_index;
  int save_argbuf_length;
  int save_argbuf_length;
  const char **save_argbuf;
  const char **save_argbuf;
 
 
  int save_arg_going;
  int save_arg_going;
  int save_delete_this_arg;
  int save_delete_this_arg;
  int save_this_is_output_file;
  int save_this_is_output_file;
  int save_this_is_library_file;
  int save_this_is_library_file;
  int save_input_from_pipe;
  int save_input_from_pipe;
  const char *save_suffix_subst;
  const char *save_suffix_subst;
 
 
 
 
  sf = lookup_spec_function (func);
  sf = lookup_spec_function (func);
  if (sf == NULL)
  if (sf == NULL)
    fatal ("unknown spec function '%s'", func);
    fatal ("unknown spec function '%s'", func);
 
 
  /* Push the spec processing context.  */
  /* Push the spec processing context.  */
  save_argbuf_index = argbuf_index;
  save_argbuf_index = argbuf_index;
  save_argbuf_length = argbuf_length;
  save_argbuf_length = argbuf_length;
  save_argbuf = argbuf;
  save_argbuf = argbuf;
 
 
  save_arg_going = arg_going;
  save_arg_going = arg_going;
  save_delete_this_arg = delete_this_arg;
  save_delete_this_arg = delete_this_arg;
  save_this_is_output_file = this_is_output_file;
  save_this_is_output_file = this_is_output_file;
  save_this_is_library_file = this_is_library_file;
  save_this_is_library_file = this_is_library_file;
  save_input_from_pipe = input_from_pipe;
  save_input_from_pipe = input_from_pipe;
  save_suffix_subst = suffix_subst;
  save_suffix_subst = suffix_subst;
 
 
  /* Create a new spec processing context, and build the function
  /* Create a new spec processing context, and build the function
     arguments.  */
     arguments.  */
 
 
  alloc_args ();
  alloc_args ();
  if (do_spec_2 (args) < 0)
  if (do_spec_2 (args) < 0)
    fatal ("error in args to spec function '%s'", func);
    fatal ("error in args to spec function '%s'", func);
 
 
  /* argbuf_index is an index for the next argument to be inserted, and
  /* argbuf_index is an index for the next argument to be inserted, and
     so contains the count of the args already inserted.  */
     so contains the count of the args already inserted.  */
 
 
  funcval = (*sf->func) (argbuf_index, argbuf);
  funcval = (*sf->func) (argbuf_index, argbuf);
 
 
  /* Pop the spec processing context.  */
  /* Pop the spec processing context.  */
  argbuf_index = save_argbuf_index;
  argbuf_index = save_argbuf_index;
  argbuf_length = save_argbuf_length;
  argbuf_length = save_argbuf_length;
  free (argbuf);
  free (argbuf);
  argbuf = save_argbuf;
  argbuf = save_argbuf;
 
 
  arg_going = save_arg_going;
  arg_going = save_arg_going;
  delete_this_arg = save_delete_this_arg;
  delete_this_arg = save_delete_this_arg;
  this_is_output_file = save_this_is_output_file;
  this_is_output_file = save_this_is_output_file;
  this_is_library_file = save_this_is_library_file;
  this_is_library_file = save_this_is_library_file;
  input_from_pipe = save_input_from_pipe;
  input_from_pipe = save_input_from_pipe;
  suffix_subst = save_suffix_subst;
  suffix_subst = save_suffix_subst;
 
 
  return funcval;
  return funcval;
}
}
 
 
/* Handle a spec function call of the form:
/* Handle a spec function call of the form:
 
 
   %:function(args)
   %:function(args)
 
 
   ARGS is processed as a spec in a separate context and split into an
   ARGS is processed as a spec in a separate context and split into an
   argument vector in the normal fashion.  The function returns a string
   argument vector in the normal fashion.  The function returns a string
   containing a spec which we then process in the caller's context, or
   containing a spec which we then process in the caller's context, or
   NULL if no processing is required.  */
   NULL if no processing is required.  */
 
 
static const char *
static const char *
handle_spec_function (const char *p)
handle_spec_function (const char *p)
{
{
  char *func, *args;
  char *func, *args;
  const char *endp, *funcval;
  const char *endp, *funcval;
  int count;
  int count;
 
 
  processing_spec_function++;
  processing_spec_function++;
 
 
  /* Get the function name.  */
  /* Get the function name.  */
  for (endp = p; *endp != '\0'; endp++)
  for (endp = p; *endp != '\0'; endp++)
    {
    {
      if (*endp == '(')         /* ) */
      if (*endp == '(')         /* ) */
        break;
        break;
      /* Only allow [A-Za-z0-9], -, and _ in function names.  */
      /* Only allow [A-Za-z0-9], -, and _ in function names.  */
      if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
      if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
        fatal ("malformed spec function name");
        fatal ("malformed spec function name");
    }
    }
  if (*endp != '(')             /* ) */
  if (*endp != '(')             /* ) */
    fatal ("no arguments for spec function");
    fatal ("no arguments for spec function");
  func = save_string (p, endp - p);
  func = save_string (p, endp - p);
  p = ++endp;
  p = ++endp;
 
 
  /* Get the arguments.  */
  /* Get the arguments.  */
  for (count = 0; *endp != '\0'; endp++)
  for (count = 0; *endp != '\0'; endp++)
    {
    {
      /* ( */
      /* ( */
      if (*endp == ')')
      if (*endp == ')')
        {
        {
          if (count == 0)
          if (count == 0)
            break;
            break;
          count--;
          count--;
        }
        }
      else if (*endp == '(')    /* ) */
      else if (*endp == '(')    /* ) */
        count++;
        count++;
    }
    }
  /* ( */
  /* ( */
  if (*endp != ')')
  if (*endp != ')')
    fatal ("malformed spec function arguments");
    fatal ("malformed spec function arguments");
  args = save_string (p, endp - p);
  args = save_string (p, endp - p);
  p = ++endp;
  p = ++endp;
 
 
  /* p now points to just past the end of the spec function expression.  */
  /* p now points to just past the end of the spec function expression.  */
 
 
  funcval = eval_spec_function (func, args);
  funcval = eval_spec_function (func, args);
  if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
  if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
    p = NULL;
    p = NULL;
 
 
  free (func);
  free (func);
  free (args);
  free (args);
 
 
  processing_spec_function--;
  processing_spec_function--;
 
 
  return p;
  return p;
}
}
 
 
/* Inline subroutine of handle_braces.  Returns true if the current
/* Inline subroutine of handle_braces.  Returns true if the current
   input suffix matches the atom bracketed by ATOM and END_ATOM.  */
   input suffix matches the atom bracketed by ATOM and END_ATOM.  */
static inline bool
static inline bool
input_suffix_matches (const char *atom, const char *end_atom)
input_suffix_matches (const char *atom, const char *end_atom)
{
{
  /* We special case the semantics of {.s:...} and {.S:...} and their
  /* We special case the semantics of {.s:...} and {.S:...} and their
     negative variants.  Instead of testing the input filename suffix,
     negative variants.  Instead of testing the input filename suffix,
     we test whether the input source file is an assembler file or an
     we test whether the input source file is an assembler file or an
     assembler-with-cpp file respectively.  This allows us to correctly
     assembler-with-cpp file respectively.  This allows us to correctly
     handle the -x command line option.  */
     handle the -x command line option.  */
 
 
  if (atom + 1 == end_atom
  if (atom + 1 == end_atom
      && input_file_compiler
      && input_file_compiler
      && input_file_compiler->suffix)
      && input_file_compiler->suffix)
    {
    {
      if (*atom == 's')
      if (*atom == 's')
        return !strcmp (input_file_compiler->suffix, "@assembler");
        return !strcmp (input_file_compiler->suffix, "@assembler");
      if (*atom == 'S')
      if (*atom == 'S')
        return !strcmp (input_file_compiler->suffix, "@assembler-with-cpp");
        return !strcmp (input_file_compiler->suffix, "@assembler-with-cpp");
    }
    }
 
 
  return (input_suffix
  return (input_suffix
          && !strncmp (input_suffix, atom, end_atom - atom)
          && !strncmp (input_suffix, atom, end_atom - atom)
          && input_suffix[end_atom - atom] == '\0');
          && input_suffix[end_atom - atom] == '\0');
}
}
 
 
/* Subroutine of handle_braces.  Returns true if a switch
/* Subroutine of handle_braces.  Returns true if a switch
   matching the atom bracketed by ATOM and END_ATOM appeared on the
   matching the atom bracketed by ATOM and END_ATOM appeared on the
   command line.  */
   command line.  */
static bool
static bool
switch_matches (const char *atom, const char *end_atom, int starred)
switch_matches (const char *atom, const char *end_atom, int starred)
{
{
  int i;
  int i;
  int len = end_atom - atom;
  int len = end_atom - atom;
  int plen = starred ? len : -1;
  int plen = starred ? len : -1;
 
 
  for (i = 0; i < n_switches; i++)
  for (i = 0; i < n_switches; i++)
    if (!strncmp (switches[i].part1, atom, len)
    if (!strncmp (switches[i].part1, atom, len)
        && (starred || switches[i].part1[len] == '\0')
        && (starred || switches[i].part1[len] == '\0')
        && check_live_switch (i, plen))
        && check_live_switch (i, plen))
      return true;
      return true;
 
 
  return false;
  return false;
}
}
 
 
/* Inline subroutine of handle_braces.  Mark all of the switches which
/* Inline subroutine of handle_braces.  Mark all of the switches which
   match ATOM (extends to END_ATOM; STARRED indicates whether there
   match ATOM (extends to END_ATOM; STARRED indicates whether there
   was a star after the atom) for later processing.  */
   was a star after the atom) for later processing.  */
static inline void
static inline void
mark_matching_switches (const char *atom, const char *end_atom, int starred)
mark_matching_switches (const char *atom, const char *end_atom, int starred)
{
{
  int i;
  int i;
  int len = end_atom - atom;
  int len = end_atom - atom;
  int plen = starred ? len : -1;
  int plen = starred ? len : -1;
 
 
  for (i = 0; i < n_switches; i++)
  for (i = 0; i < n_switches; i++)
    if (!strncmp (switches[i].part1, atom, len)
    if (!strncmp (switches[i].part1, atom, len)
        && (starred || switches[i].part1[len] == '\0')
        && (starred || switches[i].part1[len] == '\0')
        && check_live_switch (i, plen))
        && check_live_switch (i, plen))
      switches[i].ordering = 1;
      switches[i].ordering = 1;
}
}
 
 
/* Inline subroutine of handle_braces.  Process all the currently
/* Inline subroutine of handle_braces.  Process all the currently
   marked switches through give_switch, and clear the marks.  */
   marked switches through give_switch, and clear the marks.  */
static inline void
static inline void
process_marked_switches (void)
process_marked_switches (void)
{
{
  int i;
  int i;
 
 
  for (i = 0; i < n_switches; i++)
  for (i = 0; i < n_switches; i++)
    if (switches[i].ordering == 1)
    if (switches[i].ordering == 1)
      {
      {
        switches[i].ordering = 0;
        switches[i].ordering = 0;
        give_switch (i, 0);
        give_switch (i, 0);
      }
      }
}
}
 
 
/* Handle a %{ ... } construct.  P points just inside the leading {.
/* Handle a %{ ... } construct.  P points just inside the leading {.
   Returns a pointer one past the end of the brace block, or 0
   Returns a pointer one past the end of the brace block, or 0
   if we call do_spec_1 and that returns -1.  */
   if we call do_spec_1 and that returns -1.  */
 
 
static const char *
static const char *
handle_braces (const char *p)
handle_braces (const char *p)
{
{
  const char *atom, *end_atom;
  const char *atom, *end_atom;
  const char *d_atom = NULL, *d_end_atom = NULL;
  const char *d_atom = NULL, *d_end_atom = NULL;
  const char *orig = p;
  const char *orig = p;
 
 
  bool a_is_suffix;
  bool a_is_suffix;
  bool a_is_starred;
  bool a_is_starred;
  bool a_is_negated;
  bool a_is_negated;
  bool a_matched;
  bool a_matched;
 
 
  bool a_must_be_last = false;
  bool a_must_be_last = false;
  bool ordered_set    = false;
  bool ordered_set    = false;
  bool disjunct_set   = false;
  bool disjunct_set   = false;
  bool disj_matched   = false;
  bool disj_matched   = false;
  bool disj_starred   = true;
  bool disj_starred   = true;
  bool n_way_choice   = false;
  bool n_way_choice   = false;
  bool n_way_matched  = false;
  bool n_way_matched  = false;
 
 
#define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
#define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
 
 
  do
  do
    {
    {
      if (a_must_be_last)
      if (a_must_be_last)
        goto invalid;
        goto invalid;
 
 
      /* Scan one "atom" (S in the description above of %{}, possibly
      /* Scan one "atom" (S in the description above of %{}, possibly
         with !, ., or * modifiers).  */
         with !, ., or * modifiers).  */
      a_matched = a_is_suffix = a_is_starred = a_is_negated = false;
      a_matched = a_is_suffix = a_is_starred = a_is_negated = false;
 
 
      SKIP_WHITE();
      SKIP_WHITE();
      if (*p == '!')
      if (*p == '!')
        p++, a_is_negated = true;
        p++, a_is_negated = true;
 
 
      SKIP_WHITE();
      SKIP_WHITE();
      if (*p == '.')
      if (*p == '.')
        p++, a_is_suffix = true;
        p++, a_is_suffix = true;
 
 
      atom = p;
      atom = p;
      while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
      while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
             || *p == ',' || *p == '.' || *p == '@')
             || *p == ',' || *p == '.' || *p == '@')
        p++;
        p++;
      end_atom = p;
      end_atom = p;
 
 
      if (*p == '*')
      if (*p == '*')
        p++, a_is_starred = 1;
        p++, a_is_starred = 1;
 
 
      SKIP_WHITE();
      SKIP_WHITE();
      switch (*p)
      switch (*p)
        {
        {
        case '&': case '}':
        case '&': case '}':
          /* Substitute the switch(es) indicated by the current atom.  */
          /* Substitute the switch(es) indicated by the current atom.  */
          ordered_set = true;
          ordered_set = true;
          if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
          if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
              || atom == end_atom)
              || atom == end_atom)
            goto invalid;
            goto invalid;
 
 
          mark_matching_switches (atom, end_atom, a_is_starred);
          mark_matching_switches (atom, end_atom, a_is_starred);
 
 
          if (*p == '}')
          if (*p == '}')
            process_marked_switches ();
            process_marked_switches ();
          break;
          break;
 
 
        case '|': case ':':
        case '|': case ':':
          /* Substitute some text if the current atom appears as a switch
          /* Substitute some text if the current atom appears as a switch
             or suffix.  */
             or suffix.  */
          disjunct_set = true;
          disjunct_set = true;
          if (ordered_set)
          if (ordered_set)
            goto invalid;
            goto invalid;
 
 
          if (atom == end_atom)
          if (atom == end_atom)
            {
            {
              if (!n_way_choice || disj_matched || *p == '|'
              if (!n_way_choice || disj_matched || *p == '|'
                  || a_is_negated || a_is_suffix || a_is_starred)
                  || a_is_negated || a_is_suffix || a_is_starred)
                goto invalid;
                goto invalid;
 
 
              /* An empty term may appear as the last choice of an
              /* An empty term may appear as the last choice of an
                 N-way choice set; it means "otherwise".  */
                 N-way choice set; it means "otherwise".  */
              a_must_be_last = true;
              a_must_be_last = true;
              disj_matched = !n_way_matched;
              disj_matched = !n_way_matched;
              disj_starred = false;
              disj_starred = false;
            }
            }
          else
          else
            {
            {
               if (a_is_suffix && a_is_starred)
               if (a_is_suffix && a_is_starred)
                 goto invalid;
                 goto invalid;
 
 
               if (!a_is_starred)
               if (!a_is_starred)
                 disj_starred = false;
                 disj_starred = false;
 
 
               /* Don't bother testing this atom if we already have a
               /* Don't bother testing this atom if we already have a
                  match.  */
                  match.  */
               if (!disj_matched && !n_way_matched)
               if (!disj_matched && !n_way_matched)
                 {
                 {
                   if (a_is_suffix)
                   if (a_is_suffix)
                     a_matched = input_suffix_matches (atom, end_atom);
                     a_matched = input_suffix_matches (atom, end_atom);
                   else
                   else
                     a_matched = switch_matches (atom, end_atom, a_is_starred);
                     a_matched = switch_matches (atom, end_atom, a_is_starred);
 
 
                   if (a_matched != a_is_negated)
                   if (a_matched != a_is_negated)
                     {
                     {
                       disj_matched = true;
                       disj_matched = true;
                       d_atom = atom;
                       d_atom = atom;
                       d_end_atom = end_atom;
                       d_end_atom = end_atom;
                     }
                     }
                 }
                 }
            }
            }
 
 
          if (*p == ':')
          if (*p == ':')
            {
            {
              /* Found the body, that is, the text to substitute if the
              /* Found the body, that is, the text to substitute if the
                 current disjunction matches.  */
                 current disjunction matches.  */
              p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
              p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
                                      disj_matched && !n_way_matched);
                                      disj_matched && !n_way_matched);
              if (p == 0)
              if (p == 0)
                return 0;
                return 0;
 
 
              /* If we have an N-way choice, reset state for the next
              /* If we have an N-way choice, reset state for the next
                 disjunction.  */
                 disjunction.  */
              if (*p == ';')
              if (*p == ';')
                {
                {
                  n_way_choice = true;
                  n_way_choice = true;
                  n_way_matched |= disj_matched;
                  n_way_matched |= disj_matched;
                  disj_matched = false;
                  disj_matched = false;
                  disj_starred = true;
                  disj_starred = true;
                  d_atom = d_end_atom = NULL;
                  d_atom = d_end_atom = NULL;
                }
                }
            }
            }
          break;
          break;
 
 
        default:
        default:
          goto invalid;
          goto invalid;
        }
        }
    }
    }
  while (*p++ != '}');
  while (*p++ != '}');
 
 
  return p;
  return p;
 
 
 invalid:
 invalid:
  fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
  fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
 
 
#undef SKIP_WHITE
#undef SKIP_WHITE
}
}
 
 
/* Subroutine of handle_braces.  Scan and process a brace substitution body
/* Subroutine of handle_braces.  Scan and process a brace substitution body
   (X in the description of %{} syntax).  P points one past the colon;
   (X in the description of %{} syntax).  P points one past the colon;
   ATOM and END_ATOM bracket the first atom which was found to be true
   ATOM and END_ATOM bracket the first atom which was found to be true
   (present) in the current disjunction; STARRED indicates whether all
   (present) in the current disjunction; STARRED indicates whether all
   the atoms in the current disjunction were starred (for syntax validation);
   the atoms in the current disjunction were starred (for syntax validation);
   MATCHED indicates whether the disjunction matched or not, and therefore
   MATCHED indicates whether the disjunction matched or not, and therefore
   whether or not the body is to be processed through do_spec_1 or just
   whether or not the body is to be processed through do_spec_1 or just
   skipped.  Returns a pointer to the closing } or ;, or 0 if do_spec_1
   skipped.  Returns a pointer to the closing } or ;, or 0 if do_spec_1
   returns -1.  */
   returns -1.  */
 
 
static const char *
static const char *
process_brace_body (const char *p, const char *atom, const char *end_atom,
process_brace_body (const char *p, const char *atom, const char *end_atom,
                    int starred, int matched)
                    int starred, int matched)
{
{
  const char *body, *end_body;
  const char *body, *end_body;
  unsigned int nesting_level;
  unsigned int nesting_level;
  bool have_subst     = false;
  bool have_subst     = false;
 
 
  /* Locate the closing } or ;, honoring nested braces.
  /* Locate the closing } or ;, honoring nested braces.
     Trim trailing whitespace.  */
     Trim trailing whitespace.  */
  body = p;
  body = p;
  nesting_level = 1;
  nesting_level = 1;
  for (;;)
  for (;;)
    {
    {
      if (*p == '{')
      if (*p == '{')
        nesting_level++;
        nesting_level++;
      else if (*p == '}')
      else if (*p == '}')
        {
        {
          if (!--nesting_level)
          if (!--nesting_level)
            break;
            break;
        }
        }
      else if (*p == ';' && nesting_level == 1)
      else if (*p == ';' && nesting_level == 1)
        break;
        break;
      else if (*p == '%' && p[1] == '*' && nesting_level == 1)
      else if (*p == '%' && p[1] == '*' && nesting_level == 1)
        have_subst = true;
        have_subst = true;
      else if (*p == '\0')
      else if (*p == '\0')
        goto invalid;
        goto invalid;
      p++;
      p++;
    }
    }
 
 
  end_body = p;
  end_body = p;
  while (end_body[-1] == ' ' || end_body[-1] == '\t')
  while (end_body[-1] == ' ' || end_body[-1] == '\t')
    end_body--;
    end_body--;
 
 
  if (have_subst && !starred)
  if (have_subst && !starred)
    goto invalid;
    goto invalid;
 
 
  if (matched)
  if (matched)
    {
    {
      /* Copy the substitution body to permanent storage and execute it.
      /* Copy the substitution body to permanent storage and execute it.
         If have_subst is false, this is a simple matter of running the
         If have_subst is false, this is a simple matter of running the
         body through do_spec_1...  */
         body through do_spec_1...  */
      char *string = save_string (body, end_body - body);
      char *string = save_string (body, end_body - body);
      if (!have_subst)
      if (!have_subst)
        {
        {
          if (do_spec_1 (string, 0, NULL) < 0)
          if (do_spec_1 (string, 0, NULL) < 0)
            return 0;
            return 0;
        }
        }
      else
      else
        {
        {
          /* ... but if have_subst is true, we have to process the
          /* ... but if have_subst is true, we have to process the
             body once for each matching switch, with %* set to the
             body once for each matching switch, with %* set to the
             variant part of the switch.  */
             variant part of the switch.  */
          unsigned int hard_match_len = end_atom - atom;
          unsigned int hard_match_len = end_atom - atom;
          int i;
          int i;
 
 
          for (i = 0; i < n_switches; i++)
          for (i = 0; i < n_switches; i++)
            if (!strncmp (switches[i].part1, atom, hard_match_len)
            if (!strncmp (switches[i].part1, atom, hard_match_len)
                && check_live_switch (i, hard_match_len))
                && check_live_switch (i, hard_match_len))
              {
              {
                if (do_spec_1 (string, 0,
                if (do_spec_1 (string, 0,
                               &switches[i].part1[hard_match_len]) < 0)
                               &switches[i].part1[hard_match_len]) < 0)
                  return 0;
                  return 0;
                /* Pass any arguments this switch has.  */
                /* Pass any arguments this switch has.  */
                give_switch (i, 1);
                give_switch (i, 1);
                suffix_subst = NULL;
                suffix_subst = NULL;
              }
              }
        }
        }
    }
    }
 
 
  return p;
  return p;
 
 
 invalid:
 invalid:
  fatal ("braced spec body '%s' is invalid", body);
  fatal ("braced spec body '%s' is invalid", body);
}
}


/* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
/* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
   on the command line.  PREFIX_LENGTH is the length of XXX in an {XXX*}
   on the command line.  PREFIX_LENGTH is the length of XXX in an {XXX*}
   spec, or -1 if either exact match or %* is used.
   spec, or -1 if either exact match or %* is used.
 
 
   A -O switch is obsoleted by a later -O switch.  A -f, -m, or -W switch
   A -O switch is obsoleted by a later -O switch.  A -f, -m, or -W switch
   whose value does not begin with "no-" is obsoleted by the same value
   whose value does not begin with "no-" is obsoleted by the same value
   with the "no-", similarly for a switch with the "no-" prefix.  */
   with the "no-", similarly for a switch with the "no-" prefix.  */
 
 
static int
static int
check_live_switch (int switchnum, int prefix_length)
check_live_switch (int switchnum, int prefix_length)
{
{
  const char *name = switches[switchnum].part1;
  const char *name = switches[switchnum].part1;
  int i;
  int i;
 
 
  /* In the common case of {<at-most-one-letter>*}, a negating
  /* In the common case of {<at-most-one-letter>*}, a negating
     switch would always match, so ignore that case.  We will just
     switch would always match, so ignore that case.  We will just
     send the conflicting switches to the compiler phase.  */
     send the conflicting switches to the compiler phase.  */
  if (prefix_length >= 0 && prefix_length <= 1)
  if (prefix_length >= 0 && prefix_length <= 1)
    return 1;
    return 1;
 
 
  /* If we already processed this switch and determined if it was
  /* If we already processed this switch and determined if it was
     live or not, return our past determination.  */
     live or not, return our past determination.  */
  if (switches[switchnum].live_cond != 0)
  if (switches[switchnum].live_cond != 0)
    return switches[switchnum].live_cond > 0;
    return switches[switchnum].live_cond > 0;
 
 
  /* Now search for duplicate in a manner that depends on the name.  */
  /* Now search for duplicate in a manner that depends on the name.  */
  switch (*name)
  switch (*name)
    {
    {
    case 'O':
    case 'O':
      for (i = switchnum + 1; i < n_switches; i++)
      for (i = switchnum + 1; i < n_switches; i++)
        if (switches[i].part1[0] == 'O')
        if (switches[i].part1[0] == 'O')
          {
          {
            switches[switchnum].validated = 1;
            switches[switchnum].validated = 1;
            switches[switchnum].live_cond = SWITCH_FALSE;
            switches[switchnum].live_cond = SWITCH_FALSE;
            return 0;
            return 0;
          }
          }
      break;
      break;
 
 
    case 'W':  case 'f':  case 'm':
    case 'W':  case 'f':  case 'm':
      if (! strncmp (name + 1, "no-", 3))
      if (! strncmp (name + 1, "no-", 3))
        {
        {
          /* We have Xno-YYY, search for XYYY.  */
          /* We have Xno-YYY, search for XYYY.  */
          for (i = switchnum + 1; i < n_switches; i++)
          for (i = switchnum + 1; i < n_switches; i++)
            if (switches[i].part1[0] == name[0]
            if (switches[i].part1[0] == name[0]
                && ! strcmp (&switches[i].part1[1], &name[4]))
                && ! strcmp (&switches[i].part1[1], &name[4]))
              {
              {
                switches[switchnum].validated = 1;
                switches[switchnum].validated = 1;
                switches[switchnum].live_cond = SWITCH_FALSE;
                switches[switchnum].live_cond = SWITCH_FALSE;
                return 0;
                return 0;
              }
              }
        }
        }
      else
      else
        {
        {
          /* We have XYYY, search for Xno-YYY.  */
          /* We have XYYY, search for Xno-YYY.  */
          for (i = switchnum + 1; i < n_switches; i++)
          for (i = switchnum + 1; i < n_switches; i++)
            if (switches[i].part1[0] == name[0]
            if (switches[i].part1[0] == name[0]
                && switches[i].part1[1] == 'n'
                && switches[i].part1[1] == 'n'
                && switches[i].part1[2] == 'o'
                && switches[i].part1[2] == 'o'
                && switches[i].part1[3] == '-'
                && switches[i].part1[3] == '-'
                && !strcmp (&switches[i].part1[4], &name[1]))
                && !strcmp (&switches[i].part1[4], &name[1]))
              {
              {
                switches[switchnum].validated = 1;
                switches[switchnum].validated = 1;
                switches[switchnum].live_cond = SWITCH_FALSE;
                switches[switchnum].live_cond = SWITCH_FALSE;
                return 0;
                return 0;
              }
              }
        }
        }
      break;
      break;
    }
    }
 
 
  /* Otherwise the switch is live.  */
  /* Otherwise the switch is live.  */
  switches[switchnum].live_cond = SWITCH_LIVE;
  switches[switchnum].live_cond = SWITCH_LIVE;
  return 1;
  return 1;
}
}


/* Pass a switch to the current accumulating command
/* Pass a switch to the current accumulating command
   in the same form that we received it.
   in the same form that we received it.
   SWITCHNUM identifies the switch; it is an index into
   SWITCHNUM identifies the switch; it is an index into
   the vector of switches gcc received, which is `switches'.
   the vector of switches gcc received, which is `switches'.
   This cannot fail since it never finishes a command line.
   This cannot fail since it never finishes a command line.
 
 
   If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.  */
   If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.  */
 
 
static void
static void
give_switch (int switchnum, int omit_first_word)
give_switch (int switchnum, int omit_first_word)
{
{
  if (switches[switchnum].live_cond == SWITCH_IGNORE)
  if (switches[switchnum].live_cond == SWITCH_IGNORE)
    return;
    return;
 
 
  if (!omit_first_word)
  if (!omit_first_word)
    {
    {
      do_spec_1 ("-", 0, NULL);
      do_spec_1 ("-", 0, NULL);
      do_spec_1 (switches[switchnum].part1, 1, NULL);
      do_spec_1 (switches[switchnum].part1, 1, NULL);
    }
    }
 
 
  if (switches[switchnum].args != 0)
  if (switches[switchnum].args != 0)
    {
    {
      const char **p;
      const char **p;
      for (p = switches[switchnum].args; *p; p++)
      for (p = switches[switchnum].args; *p; p++)
        {
        {
          const char *arg = *p;
          const char *arg = *p;
 
 
          do_spec_1 (" ", 0, NULL);
          do_spec_1 (" ", 0, NULL);
          if (suffix_subst)
          if (suffix_subst)
            {
            {
              unsigned length = strlen (arg);
              unsigned length = strlen (arg);
              int dot = 0;
              int dot = 0;
 
 
              while (length-- && !IS_DIR_SEPARATOR (arg[length]))
              while (length-- && !IS_DIR_SEPARATOR (arg[length]))
                if (arg[length] == '.')
                if (arg[length] == '.')
                  {
                  {
                    ((char *)arg)[length] = 0;
                    ((char *)arg)[length] = 0;
                    dot = 1;
                    dot = 1;
                    break;
                    break;
                  }
                  }
              do_spec_1 (arg, 1, NULL);
              do_spec_1 (arg, 1, NULL);
              if (dot)
              if (dot)
                ((char *)arg)[length] = '.';
                ((char *)arg)[length] = '.';
              do_spec_1 (suffix_subst, 1, NULL);
              do_spec_1 (suffix_subst, 1, NULL);
            }
            }
          else
          else
            do_spec_1 (arg, 1, NULL);
            do_spec_1 (arg, 1, NULL);
        }
        }
    }
    }
 
 
  do_spec_1 (" ", 0, NULL);
  do_spec_1 (" ", 0, NULL);
  switches[switchnum].validated = 1;
  switches[switchnum].validated = 1;
}
}


/* Search for a file named NAME trying various prefixes including the
/* Search for a file named NAME trying various prefixes including the
   user's -B prefix and some standard ones.
   user's -B prefix and some standard ones.
   Return the absolute file name found.  If nothing is found, return NAME.  */
   Return the absolute file name found.  If nothing is found, return NAME.  */
 
 
static const char *
static const char *
find_file (const char *name)
find_file (const char *name)
{
{
  char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
  char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
  return newname ? newname : name;
  return newname ? newname : name;
}
}
 
 
/* Determine whether a directory exists.  If LINKER, return 0 for
/* Determine whether a directory exists.  If LINKER, return 0 for
   certain fixed names not needed by the linker.  */
   certain fixed names not needed by the linker.  */
 
 
static int
static int
is_directory (const char *path1, bool linker)
is_directory (const char *path1, bool linker)
{
{
  int len1;
  int len1;
  char *path;
  char *path;
  char *cp;
  char *cp;
  struct stat st;
  struct stat st;
 
 
  /* Ensure the string ends with "/.".  The resulting path will be a
  /* Ensure the string ends with "/.".  The resulting path will be a
     directory even if the given path is a symbolic link.  */
     directory even if the given path is a symbolic link.  */
  len1 = strlen (path1);
  len1 = strlen (path1);
  path = alloca (3 + len1);
  path = alloca (3 + len1);
  memcpy (path, path1, len1);
  memcpy (path, path1, len1);
  cp = path + len1;
  cp = path + len1;
  if (!IS_DIR_SEPARATOR (cp[-1]))
  if (!IS_DIR_SEPARATOR (cp[-1]))
    *cp++ = DIR_SEPARATOR;
    *cp++ = DIR_SEPARATOR;
  *cp++ = '.';
  *cp++ = '.';
  *cp = '\0';
  *cp = '\0';
 
 
  /* Exclude directories that the linker is known to search.  */
  /* Exclude directories that the linker is known to search.  */
  if (linker
  if (linker
      && IS_DIR_SEPARATOR (path[0])
      && IS_DIR_SEPARATOR (path[0])
      && ((cp - path == 6
      && ((cp - path == 6
           && strncmp (path + 1, "lib", 3) == 0)
           && strncmp (path + 1, "lib", 3) == 0)
          || (cp - path == 10
          || (cp - path == 10
              && strncmp (path + 1, "usr", 3) == 0
              && strncmp (path + 1, "usr", 3) == 0
              && IS_DIR_SEPARATOR (path[4])
              && IS_DIR_SEPARATOR (path[4])
              && strncmp (path + 5, "lib", 3) == 0)))
              && strncmp (path + 5, "lib", 3) == 0)))
    return 0;
    return 0;
 
 
  return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
  return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
}
}
 
 
/* Set up the various global variables to indicate that we're processing
/* Set up the various global variables to indicate that we're processing
   the input file named FILENAME.  */
   the input file named FILENAME.  */
 
 
void
void
set_input (const char *filename)
set_input (const char *filename)
{
{
  const char *p;
  const char *p;
 
 
  input_filename = filename;
  input_filename = filename;
  input_filename_length = strlen (input_filename);
  input_filename_length = strlen (input_filename);
 
 
  input_basename = input_filename;
  input_basename = input_filename;
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
  /* Skip drive name so 'x:foo' is handled properly.  */
  /* Skip drive name so 'x:foo' is handled properly.  */
  if (input_basename[1] == ':')
  if (input_basename[1] == ':')
    input_basename += 2;
    input_basename += 2;
#endif
#endif
  for (p = input_basename; *p; p++)
  for (p = input_basename; *p; p++)
    if (IS_DIR_SEPARATOR (*p))
    if (IS_DIR_SEPARATOR (*p))
      input_basename = p + 1;
      input_basename = p + 1;
 
 
  /* Find a suffix starting with the last period,
  /* Find a suffix starting with the last period,
     and set basename_length to exclude that suffix.  */
     and set basename_length to exclude that suffix.  */
  basename_length = strlen (input_basename);
  basename_length = strlen (input_basename);
  suffixed_basename_length = basename_length;
  suffixed_basename_length = basename_length;
  p = input_basename + basename_length;
  p = input_basename + basename_length;
  while (p != input_basename && *p != '.')
  while (p != input_basename && *p != '.')
    --p;
    --p;
  if (*p == '.' && p != input_basename)
  if (*p == '.' && p != input_basename)
    {
    {
      basename_length = p - input_basename;
      basename_length = p - input_basename;
      input_suffix = p + 1;
      input_suffix = p + 1;
    }
    }
  else
  else
    input_suffix = "";
    input_suffix = "";
 
 
  /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
  /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
     we will need to do a stat on the input_filename.  The
     we will need to do a stat on the input_filename.  The
     INPUT_STAT_SET signals that the stat is needed.  */
     INPUT_STAT_SET signals that the stat is needed.  */
  input_stat_set = 0;
  input_stat_set = 0;
}
}


/* On fatal signals, delete all the temporary files.  */
/* On fatal signals, delete all the temporary files.  */
 
 
static void
static void
fatal_error (int signum)
fatal_error (int signum)
{
{
  signal (signum, SIG_DFL);
  signal (signum, SIG_DFL);
  delete_failure_queue ();
  delete_failure_queue ();
  delete_temp_files ();
  delete_temp_files ();
  /* Get the same signal again, this time not handled,
  /* Get the same signal again, this time not handled,
     so its normal effect occurs.  */
     so its normal effect occurs.  */
  kill (getpid (), signum);
  kill (getpid (), signum);
}
}
 
 
extern int main (int, char **);
extern int main (int, char **);
 
 
int
int
main (int argc, char **argv)
main (int argc, char **argv)
{
{
  size_t i;
  size_t i;
  int value;
  int value;
  int linker_was_run = 0;
  int linker_was_run = 0;
  int lang_n_infiles = 0;
  int lang_n_infiles = 0;
  int num_linker_inputs = 0;
  int num_linker_inputs = 0;
  char *explicit_link_files;
  char *explicit_link_files;
  char *specs_file;
  char *specs_file;
  const char *p;
  const char *p;
  struct user_specs *uptr;
  struct user_specs *uptr;
 
 
  p = argv[0] + strlen (argv[0]);
  p = argv[0] + strlen (argv[0]);
  while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
  while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
    --p;
    --p;
  programname = p;
  programname = p;
 
 
  xmalloc_set_program_name (programname);
  xmalloc_set_program_name (programname);
 
 
  expandargv (&argc, &argv);
  expandargv (&argc, &argv);
 
 
  prune_options (&argc, &argv);
  prune_options (&argc, &argv);
 
 
#ifdef GCC_DRIVER_HOST_INITIALIZATION
#ifdef GCC_DRIVER_HOST_INITIALIZATION
  /* Perform host dependent initialization when needed.  */
  /* Perform host dependent initialization when needed.  */
  GCC_DRIVER_HOST_INITIALIZATION;
  GCC_DRIVER_HOST_INITIALIZATION;
#endif
#endif
 
 
  /* Unlock the stdio streams.  */
  /* Unlock the stdio streams.  */
  unlock_std_streams ();
  unlock_std_streams ();
 
 
  gcc_init_libintl ();
  gcc_init_libintl ();
 
 
  if (signal (SIGINT, SIG_IGN) != SIG_IGN)
  if (signal (SIGINT, SIG_IGN) != SIG_IGN)
    signal (SIGINT, fatal_error);
    signal (SIGINT, fatal_error);
#ifdef SIGHUP
#ifdef SIGHUP
  if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
  if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
    signal (SIGHUP, fatal_error);
    signal (SIGHUP, fatal_error);
#endif
#endif
  if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
  if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
    signal (SIGTERM, fatal_error);
    signal (SIGTERM, fatal_error);
#ifdef SIGPIPE
#ifdef SIGPIPE
  if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
  if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
    signal (SIGPIPE, fatal_error);
    signal (SIGPIPE, fatal_error);
#endif
#endif
#ifdef SIGCHLD
#ifdef SIGCHLD
  /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
  /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
     receive the signal.  A different setting is inheritable */
     receive the signal.  A different setting is inheritable */
  signal (SIGCHLD, SIG_DFL);
  signal (SIGCHLD, SIG_DFL);
#endif
#endif
 
 
  /* Allocate the argument vector.  */
  /* Allocate the argument vector.  */
  alloc_args ();
  alloc_args ();
 
 
  obstack_init (&obstack);
  obstack_init (&obstack);
 
 
  /* Build multilib_select, et. al from the separate lines that make up each
  /* Build multilib_select, et. al from the separate lines that make up each
     multilib selection.  */
     multilib selection.  */
  {
  {
    const char *const *q = multilib_raw;
    const char *const *q = multilib_raw;
    int need_space;
    int need_space;
 
 
    obstack_init (&multilib_obstack);
    obstack_init (&multilib_obstack);
    while ((p = *q++) != (char *) 0)
    while ((p = *q++) != (char *) 0)
      obstack_grow (&multilib_obstack, p, strlen (p));
      obstack_grow (&multilib_obstack, p, strlen (p));
 
 
    obstack_1grow (&multilib_obstack, 0);
    obstack_1grow (&multilib_obstack, 0);
    multilib_select = XOBFINISH (&multilib_obstack, const char *);
    multilib_select = XOBFINISH (&multilib_obstack, const char *);
 
 
    q = multilib_matches_raw;
    q = multilib_matches_raw;
    while ((p = *q++) != (char *) 0)
    while ((p = *q++) != (char *) 0)
      obstack_grow (&multilib_obstack, p, strlen (p));
      obstack_grow (&multilib_obstack, p, strlen (p));
 
 
    obstack_1grow (&multilib_obstack, 0);
    obstack_1grow (&multilib_obstack, 0);
    multilib_matches = XOBFINISH (&multilib_obstack, const char *);
    multilib_matches = XOBFINISH (&multilib_obstack, const char *);
 
 
    q = multilib_exclusions_raw;
    q = multilib_exclusions_raw;
    while ((p = *q++) != (char *) 0)
    while ((p = *q++) != (char *) 0)
      obstack_grow (&multilib_obstack, p, strlen (p));
      obstack_grow (&multilib_obstack, p, strlen (p));
 
 
    obstack_1grow (&multilib_obstack, 0);
    obstack_1grow (&multilib_obstack, 0);
    multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
    multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
 
 
    need_space = FALSE;
    need_space = FALSE;
    for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
    for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
      {
      {
        if (need_space)
        if (need_space)
          obstack_1grow (&multilib_obstack, ' ');
          obstack_1grow (&multilib_obstack, ' ');
        obstack_grow (&multilib_obstack,
        obstack_grow (&multilib_obstack,
                      multilib_defaults_raw[i],
                      multilib_defaults_raw[i],
                      strlen (multilib_defaults_raw[i]));
                      strlen (multilib_defaults_raw[i]));
        need_space = TRUE;
        need_space = TRUE;
      }
      }
 
 
    obstack_1grow (&multilib_obstack, 0);
    obstack_1grow (&multilib_obstack, 0);
    multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
    multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
  }
  }
 
 
  /* Set up to remember the pathname of gcc and any options
  /* Set up to remember the pathname of gcc and any options
     needed for collect.  We use argv[0] instead of programname because
     needed for collect.  We use argv[0] instead of programname because
     we need the complete pathname.  */
     we need the complete pathname.  */
  obstack_init (&collect_obstack);
  obstack_init (&collect_obstack);
  obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
  obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
  obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
  obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
  putenv (XOBFINISH (&collect_obstack, char *));
  putenv (XOBFINISH (&collect_obstack, char *));
 
 
#ifdef INIT_ENVIRONMENT
#ifdef INIT_ENVIRONMENT
  /* Set up any other necessary machine specific environment variables.  */
  /* Set up any other necessary machine specific environment variables.  */
  putenv (INIT_ENVIRONMENT);
  putenv (INIT_ENVIRONMENT);
#endif
#endif
 
 
  /* Make a table of what switches there are (switches, n_switches).
  /* Make a table of what switches there are (switches, n_switches).
     Make a table of specified input files (infiles, n_infiles).
     Make a table of specified input files (infiles, n_infiles).
     Decode switches that are handled locally.  */
     Decode switches that are handled locally.  */
 
 
  process_command (argc, (const char **) argv);
  process_command (argc, (const char **) argv);
 
 
  /* Initialize the vector of specs to just the default.
  /* Initialize the vector of specs to just the default.
     This means one element containing 0s, as a terminator.  */
     This means one element containing 0s, as a terminator.  */
 
 
  compilers = xmalloc (sizeof default_compilers);
  compilers = xmalloc (sizeof default_compilers);
  memcpy (compilers, default_compilers, sizeof default_compilers);
  memcpy (compilers, default_compilers, sizeof default_compilers);
  n_compilers = n_default_compilers;
  n_compilers = n_default_compilers;
 
 
  /* Read specs from a file if there is one.  */
  /* Read specs from a file if there is one.  */
 
 
  machine_suffix = concat (spec_machine, dir_separator_str,
  machine_suffix = concat (spec_machine, dir_separator_str,
                           spec_version, dir_separator_str, NULL);
                           spec_version, dir_separator_str, NULL);
  just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
  just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
 
 
  specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
  specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
  /* Read the specs file unless it is a default one.  */
  /* Read the specs file unless it is a default one.  */
  if (specs_file != 0 && strcmp (specs_file, "specs"))
  if (specs_file != 0 && strcmp (specs_file, "specs"))
    read_specs (specs_file, TRUE);
    read_specs (specs_file, TRUE);
  else
  else
    init_spec ();
    init_spec ();
 
 
  /* We need to check standard_exec_prefix/just_machine_suffix/specs
  /* We need to check standard_exec_prefix/just_machine_suffix/specs
     for any override of as, ld and libraries.  */
     for any override of as, ld and libraries.  */
  specs_file = alloca (strlen (standard_exec_prefix)
  specs_file = alloca (strlen (standard_exec_prefix)
                       + strlen (just_machine_suffix) + sizeof ("specs"));
                       + strlen (just_machine_suffix) + sizeof ("specs"));
 
 
  strcpy (specs_file, standard_exec_prefix);
  strcpy (specs_file, standard_exec_prefix);
  strcat (specs_file, just_machine_suffix);
  strcat (specs_file, just_machine_suffix);
  strcat (specs_file, "specs");
  strcat (specs_file, "specs");
  if (access (specs_file, R_OK) == 0)
  if (access (specs_file, R_OK) == 0)
    read_specs (specs_file, TRUE);
    read_specs (specs_file, TRUE);
 
 
  /* Process any configure-time defaults specified for the command line
  /* Process any configure-time defaults specified for the command line
     options, via OPTION_DEFAULT_SPECS.  */
     options, via OPTION_DEFAULT_SPECS.  */
  for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
  for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
    do_option_spec (option_default_specs[i].name,
    do_option_spec (option_default_specs[i].name,
                    option_default_specs[i].spec);
                    option_default_specs[i].spec);
 
 
  /* Process DRIVER_SELF_SPECS, adding any new options to the end
  /* Process DRIVER_SELF_SPECS, adding any new options to the end
     of the command line.  */
     of the command line.  */
 
 
  for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
  for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
    do_self_spec (driver_self_specs[i]);
    do_self_spec (driver_self_specs[i]);
 
 
  /* If not cross-compiling, look for executables in the standard
  /* If not cross-compiling, look for executables in the standard
     places.  */
     places.  */
  if (*cross_compile == '0')
  if (*cross_compile == '0')
    {
    {
      if (*md_exec_prefix)
      if (*md_exec_prefix)
        {
        {
          add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
          add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
                      PREFIX_PRIORITY_LAST, 0, 0);
                      PREFIX_PRIORITY_LAST, 0, 0);
        }
        }
    }
    }
 
 
  /* Process sysroot_suffix_spec.  */
  /* Process sysroot_suffix_spec.  */
  if (*sysroot_suffix_spec != 0
  if (*sysroot_suffix_spec != 0
      && do_spec_2 (sysroot_suffix_spec) == 0)
      && do_spec_2 (sysroot_suffix_spec) == 0)
    {
    {
      if (argbuf_index > 1)
      if (argbuf_index > 1)
        error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
        error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
      else if (argbuf_index == 1)
      else if (argbuf_index == 1)
        target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
        target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
    }
    }
 
 
#ifdef HAVE_LD_SYSROOT
#ifdef HAVE_LD_SYSROOT
  /* Pass the --sysroot option to the linker, if it supports that.  If
  /* Pass the --sysroot option to the linker, if it supports that.  If
     there is a sysroot_suffix_spec, it has already been processed by
     there is a sysroot_suffix_spec, it has already been processed by
     this point, so target_system_root really is the system root we
     this point, so target_system_root really is the system root we
     should be using.  */
     should be using.  */
  if (target_system_root)
  if (target_system_root)
    {
    {
      obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
      obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
      obstack_grow0 (&obstack, link_spec, strlen (link_spec));
      obstack_grow0 (&obstack, link_spec, strlen (link_spec));
      set_spec ("link", XOBFINISH (&obstack, const char *));
      set_spec ("link", XOBFINISH (&obstack, const char *));
    }
    }
#endif
#endif
 
 
  /* Process sysroot_hdrs_suffix_spec.  */
  /* Process sysroot_hdrs_suffix_spec.  */
  if (*sysroot_hdrs_suffix_spec != 0
  if (*sysroot_hdrs_suffix_spec != 0
      && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
      && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
    {
    {
      if (argbuf_index > 1)
      if (argbuf_index > 1)
        error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
        error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
      else if (argbuf_index == 1)
      else if (argbuf_index == 1)
        target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
        target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
    }
    }
 
 
  /* Look for startfiles in the standard places.  */
  /* Look for startfiles in the standard places.  */
  if (*startfile_prefix_spec != 0
  if (*startfile_prefix_spec != 0
      && do_spec_2 (startfile_prefix_spec) == 0
      && do_spec_2 (startfile_prefix_spec) == 0
      && do_spec_1 (" ", 0, NULL) == 0)
      && do_spec_1 (" ", 0, NULL) == 0)
    {
    {
      int ndx;
      int ndx;
      for (ndx = 0; ndx < argbuf_index; ndx++)
      for (ndx = 0; ndx < argbuf_index; ndx++)
        add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
        add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
                              PREFIX_PRIORITY_LAST, 0, 1);
                              PREFIX_PRIORITY_LAST, 0, 1);
    }
    }
  /* We should eventually get rid of all these and stick to
  /* We should eventually get rid of all these and stick to
     startfile_prefix_spec exclusively.  */
     startfile_prefix_spec exclusively.  */
  else if (*cross_compile == '0' || target_system_root)
  else if (*cross_compile == '0' || target_system_root)
    {
    {
      if (*md_startfile_prefix)
      if (*md_startfile_prefix)
        add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
        add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
                              "GCC", PREFIX_PRIORITY_LAST, 0, 1);
                              "GCC", PREFIX_PRIORITY_LAST, 0, 1);
 
 
      if (*md_startfile_prefix_1)
      if (*md_startfile_prefix_1)
        add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
        add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
                              "GCC", PREFIX_PRIORITY_LAST, 0, 1);
                              "GCC", PREFIX_PRIORITY_LAST, 0, 1);
 
 
      /* If standard_startfile_prefix is relative, base it on
      /* If standard_startfile_prefix is relative, base it on
         standard_exec_prefix.  This lets us move the installed tree
         standard_exec_prefix.  This lets us move the installed tree
         as a unit.  If GCC_EXEC_PREFIX is defined, base
         as a unit.  If GCC_EXEC_PREFIX is defined, base
         standard_startfile_prefix on that as well.
         standard_startfile_prefix on that as well.
 
 
         If the prefix is relative, only search it for native compilers;
         If the prefix is relative, only search it for native compilers;
         otherwise we will search a directory containing host libraries.  */
         otherwise we will search a directory containing host libraries.  */
      if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
      if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
        add_sysrooted_prefix (&startfile_prefixes,
        add_sysrooted_prefix (&startfile_prefixes,
                              standard_startfile_prefix, "BINUTILS",
                              standard_startfile_prefix, "BINUTILS",
                              PREFIX_PRIORITY_LAST, 0, 1);
                              PREFIX_PRIORITY_LAST, 0, 1);
      else if (*cross_compile == '0')
      else if (*cross_compile == '0')
        {
        {
          if (gcc_exec_prefix)
          if (gcc_exec_prefix)
            add_prefix (&startfile_prefixes,
            add_prefix (&startfile_prefixes,
                        concat (gcc_exec_prefix, machine_suffix,
                        concat (gcc_exec_prefix, machine_suffix,
                                standard_startfile_prefix, NULL),
                                standard_startfile_prefix, NULL),
                        NULL, PREFIX_PRIORITY_LAST, 0, 1);
                        NULL, PREFIX_PRIORITY_LAST, 0, 1);
          add_prefix (&startfile_prefixes,
          add_prefix (&startfile_prefixes,
                      concat (standard_exec_prefix,
                      concat (standard_exec_prefix,
                              machine_suffix,
                              machine_suffix,
                              standard_startfile_prefix, NULL),
                              standard_startfile_prefix, NULL),
                      NULL, PREFIX_PRIORITY_LAST, 0, 1);
                      NULL, PREFIX_PRIORITY_LAST, 0, 1);
        }
        }
 
 
      if (*standard_startfile_prefix_1)
      if (*standard_startfile_prefix_1)
        add_sysrooted_prefix (&startfile_prefixes,
        add_sysrooted_prefix (&startfile_prefixes,
                              standard_startfile_prefix_1, "BINUTILS",
                              standard_startfile_prefix_1, "BINUTILS",
                              PREFIX_PRIORITY_LAST, 0, 1);
                              PREFIX_PRIORITY_LAST, 0, 1);
      if (*standard_startfile_prefix_2)
      if (*standard_startfile_prefix_2)
        add_sysrooted_prefix (&startfile_prefixes,
        add_sysrooted_prefix (&startfile_prefixes,
                              standard_startfile_prefix_2, "BINUTILS",
                              standard_startfile_prefix_2, "BINUTILS",
                              PREFIX_PRIORITY_LAST, 0, 1);
                              PREFIX_PRIORITY_LAST, 0, 1);
    }
    }
 
 
  /* Process any user specified specs in the order given on the command
  /* Process any user specified specs in the order given on the command
     line.  */
     line.  */
  for (uptr = user_specs_head; uptr; uptr = uptr->next)
  for (uptr = user_specs_head; uptr; uptr = uptr->next)
    {
    {
      char *filename = find_a_file (&startfile_prefixes, uptr->filename,
      char *filename = find_a_file (&startfile_prefixes, uptr->filename,
                                    R_OK, true);
                                    R_OK, true);
      read_specs (filename ? filename : uptr->filename, FALSE);
      read_specs (filename ? filename : uptr->filename, FALSE);
    }
    }
 
 
  /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake.  */
  /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake.  */
  if (gcc_exec_prefix)
  if (gcc_exec_prefix)
    gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
    gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
                              spec_version, dir_separator_str, NULL);
                              spec_version, dir_separator_str, NULL);
 
 
  /* Now we have the specs.
  /* Now we have the specs.
     Set the `valid' bits for switches that match anything in any spec.  */
     Set the `valid' bits for switches that match anything in any spec.  */
 
 
  validate_all_switches ();
  validate_all_switches ();
 
 
  /* Now that we have the switches and the specs, set
  /* Now that we have the switches and the specs, set
     the subdirectory based on the options.  */
     the subdirectory based on the options.  */
  set_multilib_dir ();
  set_multilib_dir ();
 
 
  /* Warn about any switches that no pass was interested in.  */
  /* Warn about any switches that no pass was interested in.  */
 
 
  for (i = 0; (int) i < n_switches; i++)
  for (i = 0; (int) i < n_switches; i++)
    if (! switches[i].validated)
    if (! switches[i].validated)
      error ("unrecognized option '-%s'", switches[i].part1);
      error ("unrecognized option '-%s'", switches[i].part1);
 
 
  /* Obey some of the options.  */
  /* Obey some of the options.  */
 
 
  if (print_search_dirs)
  if (print_search_dirs)
    {
    {
      printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
      printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
      printf (_("programs: %s\n"),
      printf (_("programs: %s\n"),
              build_search_list (&exec_prefixes, "", false, false));
              build_search_list (&exec_prefixes, "", false, false));
      printf (_("libraries: %s\n"),
      printf (_("libraries: %s\n"),
              build_search_list (&startfile_prefixes, "", false, true));
              build_search_list (&startfile_prefixes, "", false, true));
      return (0);
      return (0);
    }
    }
 
 
  if (print_file_name)
  if (print_file_name)
    {
    {
      printf ("%s\n", find_file (print_file_name));
      printf ("%s\n", find_file (print_file_name));
      return (0);
      return (0);
    }
    }
 
 
  if (print_prog_name)
  if (print_prog_name)
    {
    {
      char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
      char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
      printf ("%s\n", (newname ? newname : print_prog_name));
      printf ("%s\n", (newname ? newname : print_prog_name));
      return (0);
      return (0);
    }
    }
 
 
  if (print_multi_lib)
  if (print_multi_lib)
    {
    {
      print_multilib_info ();
      print_multilib_info ();
      return (0);
      return (0);
    }
    }
 
 
  if (print_multi_directory)
  if (print_multi_directory)
    {
    {
      if (multilib_dir == NULL)
      if (multilib_dir == NULL)
        printf (".\n");
        printf (".\n");
      else
      else
        printf ("%s\n", multilib_dir);
        printf ("%s\n", multilib_dir);
      return (0);
      return (0);
    }
    }
 
 
  if (print_multi_os_directory)
  if (print_multi_os_directory)
    {
    {
      if (multilib_os_dir == NULL)
      if (multilib_os_dir == NULL)
        printf (".\n");
        printf (".\n");
      else
      else
        printf ("%s\n", multilib_os_dir);
        printf ("%s\n", multilib_os_dir);
      return (0);
      return (0);
    }
    }
 
 
  if (target_help_flag)
  if (target_help_flag)
   {
   {
      /* Print if any target specific options.  */
      /* Print if any target specific options.  */
 
 
      /* We do not exit here. Instead we have created a fake input file
      /* We do not exit here. Instead we have created a fake input file
         called 'target-dummy' which needs to be compiled, and we pass this
         called 'target-dummy' which needs to be compiled, and we pass this
         on to the various sub-processes, along with the --target-help
         on to the various sub-processes, along with the --target-help
         switch.  */
         switch.  */
    }
    }
 
 
  if (print_help_list)
  if (print_help_list)
    {
    {
      display_help ();
      display_help ();
 
 
      if (! verbose_flag)
      if (! verbose_flag)
        {
        {
          printf (_("\nFor bug reporting instructions, please see:\n"));
          printf (_("\nFor bug reporting instructions, please see:\n"));
          printf ("%s.\n", bug_report_url);
          printf ("%s.\n", bug_report_url);
 
 
          return (0);
          return (0);
        }
        }
 
 
      /* We do not exit here.  Instead we have created a fake input file
      /* We do not exit here.  Instead we have created a fake input file
         called 'help-dummy' which needs to be compiled, and we pass this
         called 'help-dummy' which needs to be compiled, and we pass this
         on the various sub-processes, along with the --help switch.  */
         on the various sub-processes, along with the --help switch.  */
    }
    }
 
 
  if (verbose_flag)
  if (verbose_flag)
    {
    {
      int n;
      int n;
      const char *thrmod;
      const char *thrmod;
 
 
      notice ("Target: %s\n", spec_machine);
      notice ("Target: %s\n", spec_machine);
      notice ("Configured with: %s\n", configuration_arguments);
      notice ("Configured with: %s\n", configuration_arguments);
 
 
#ifdef THREAD_MODEL_SPEC
#ifdef THREAD_MODEL_SPEC
      /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
      /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
         but there's no point in doing all this processing just to get
         but there's no point in doing all this processing just to get
         thread_model back.  */
         thread_model back.  */
      obstack_init (&obstack);
      obstack_init (&obstack);
      do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
      do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
      obstack_1grow (&obstack, '\0');
      obstack_1grow (&obstack, '\0');
      thrmod = XOBFINISH (&obstack, const char *);
      thrmod = XOBFINISH (&obstack, const char *);
#else
#else
      thrmod = thread_model;
      thrmod = thread_model;
#endif
#endif
 
 
      notice ("Thread model: %s\n", thrmod);
      notice ("Thread model: %s\n", thrmod);
 
 
      /* compiler_version is truncated at the first space when initialized
      /* compiler_version is truncated at the first space when initialized
         from version string, so truncate version_string at the first space
         from version string, so truncate version_string at the first space
         before comparing.  */
         before comparing.  */
      for (n = 0; version_string[n]; n++)
      for (n = 0; version_string[n]; n++)
        if (version_string[n] == ' ')
        if (version_string[n] == ' ')
          break;
          break;
 
 
      if (! strncmp (version_string, compiler_version, n)
      if (! strncmp (version_string, compiler_version, n)
          && compiler_version[n] == 0)
          && compiler_version[n] == 0)
        notice ("gcc version %s\n", version_string);
        notice ("gcc version %s\n", version_string);
      else
      else
        notice ("gcc driver version %s executing gcc version %s\n",
        notice ("gcc driver version %s executing gcc version %s\n",
                version_string, compiler_version);
                version_string, compiler_version);
 
 
      if (n_infiles == 0)
      if (n_infiles == 0)
        return (0);
        return (0);
    }
    }
 
 
  if (n_infiles == added_libraries)
  if (n_infiles == added_libraries)
    fatal ("no input files");
    fatal ("no input files");
 
 
  /* Make a place to record the compiler output file names
  /* Make a place to record the compiler output file names
     that correspond to the input files.  */
     that correspond to the input files.  */
 
 
  i = n_infiles;
  i = n_infiles;
  i += lang_specific_extra_outfiles;
  i += lang_specific_extra_outfiles;
  outfiles = XCNEWVEC (const char *, i);
  outfiles = XCNEWVEC (const char *, i);
 
 
  /* Record which files were specified explicitly as link input.  */
  /* Record which files were specified explicitly as link input.  */
 
 
  explicit_link_files = XCNEWVEC (char, n_infiles);
  explicit_link_files = XCNEWVEC (char, n_infiles);
 
 
  if (combine_flag)
  if (combine_flag)
    combine_inputs = true;
    combine_inputs = true;
  else
  else
    combine_inputs = false;
    combine_inputs = false;
 
 
  for (i = 0; (int) i < n_infiles; i++)
  for (i = 0; (int) i < n_infiles; i++)
    {
    {
      const char *name = infiles[i].name;
      const char *name = infiles[i].name;
      struct compiler *compiler = lookup_compiler (name,
      struct compiler *compiler = lookup_compiler (name,
                                                   strlen (name),
                                                   strlen (name),
                                                   infiles[i].language);
                                                   infiles[i].language);
 
 
      if (compiler && !(compiler->combinable))
      if (compiler && !(compiler->combinable))
        combine_inputs = false;
        combine_inputs = false;
 
 
      if (lang_n_infiles > 0 && compiler != input_file_compiler
      if (lang_n_infiles > 0 && compiler != input_file_compiler
          && infiles[i].language && infiles[i].language[0] != '*')
          && infiles[i].language && infiles[i].language[0] != '*')
        infiles[i].incompiler = compiler;
        infiles[i].incompiler = compiler;
      else if (compiler)
      else if (compiler)
        {
        {
          lang_n_infiles++;
          lang_n_infiles++;
          input_file_compiler = compiler;
          input_file_compiler = compiler;
          infiles[i].incompiler = compiler;
          infiles[i].incompiler = compiler;
        }
        }
      else
      else
        {
        {
          /* Since there is no compiler for this input file, assume it is a
          /* Since there is no compiler for this input file, assume it is a
             linker file.  */
             linker file.  */
          explicit_link_files[i] = 1;
          explicit_link_files[i] = 1;
          infiles[i].incompiler = NULL;
          infiles[i].incompiler = NULL;
        }
        }
      infiles[i].compiled = false;
      infiles[i].compiled = false;
      infiles[i].preprocessed = false;
      infiles[i].preprocessed = false;
    }
    }
 
 
  if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
  if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
   fatal ("cannot specify -o with -c or -S with multiple files");
   fatal ("cannot specify -o with -c or -S with multiple files");
 
 
  if (combine_flag && save_temps_flag)
  if (combine_flag && save_temps_flag)
    {
    {
      bool save_combine_inputs = combine_inputs;
      bool save_combine_inputs = combine_inputs;
      /* Must do a separate pre-processing pass for C & Objective-C files, to
      /* Must do a separate pre-processing pass for C & Objective-C files, to
         obtain individual .i files.  */
         obtain individual .i files.  */
 
 
      combine_inputs = false;
      combine_inputs = false;
      for (i = 0; (int) i < n_infiles; i++)
      for (i = 0; (int) i < n_infiles; i++)
        {
        {
          int this_file_error = 0;
          int this_file_error = 0;
 
 
          input_file_number = i;
          input_file_number = i;
          set_input (infiles[i].name);
          set_input (infiles[i].name);
          if (infiles[i].incompiler
          if (infiles[i].incompiler
              && (infiles[i].incompiler)->needs_preprocessing)
              && (infiles[i].incompiler)->needs_preprocessing)
            input_file_compiler = infiles[i].incompiler;
            input_file_compiler = infiles[i].incompiler;
          else
          else
            continue;
            continue;
 
 
          if (input_file_compiler)
          if (input_file_compiler)
            {
            {
              if (input_file_compiler->spec[0] == '#')
              if (input_file_compiler->spec[0] == '#')
                {
                {
                  error ("%s: %s compiler not installed on this system",
                  error ("%s: %s compiler not installed on this system",
                         input_filename, &input_file_compiler->spec[1]);
                         input_filename, &input_file_compiler->spec[1]);
                  this_file_error = 1;
                  this_file_error = 1;
                }
                }
              else
              else
                {
                {
                  value = do_spec (input_file_compiler->spec);
                  value = do_spec (input_file_compiler->spec);
                  infiles[i].preprocessed = true;
                  infiles[i].preprocessed = true;
                  if (!have_o_argbuf_index)
                  if (!have_o_argbuf_index)
                    fatal ("spec '%s' is invalid", input_file_compiler->spec);
                    fatal ("spec '%s' is invalid", input_file_compiler->spec);
                  infiles[i].name = argbuf[have_o_argbuf_index];
                  infiles[i].name = argbuf[have_o_argbuf_index];
                  infiles[i].incompiler
                  infiles[i].incompiler
                    = lookup_compiler (infiles[i].name,
                    = lookup_compiler (infiles[i].name,
                                       strlen (infiles[i].name),
                                       strlen (infiles[i].name),
                                       infiles[i].language);
                                       infiles[i].language);
 
 
                  if (value < 0)
                  if (value < 0)
                    this_file_error = 1;
                    this_file_error = 1;
                }
                }
            }
            }
 
 
          if (this_file_error)
          if (this_file_error)
            {
            {
              delete_failure_queue ();
              delete_failure_queue ();
              error_count++;
              error_count++;
              break;
              break;
            }
            }
          clear_failure_queue ();
          clear_failure_queue ();
        }
        }
      combine_inputs = save_combine_inputs;
      combine_inputs = save_combine_inputs;
    }
    }
 
 
  for (i = 0; (int) i < n_infiles; i++)
  for (i = 0; (int) i < n_infiles; i++)
    {
    {
      int this_file_error = 0;
      int this_file_error = 0;
 
 
      /* Tell do_spec what to substitute for %i.  */
      /* Tell do_spec what to substitute for %i.  */
 
 
      input_file_number = i;
      input_file_number = i;
      set_input (infiles[i].name);
      set_input (infiles[i].name);
 
 
      if (infiles[i].compiled)
      if (infiles[i].compiled)
        continue;
        continue;
 
 
      /* Use the same thing in %o, unless cp->spec says otherwise.  */
      /* Use the same thing in %o, unless cp->spec says otherwise.  */
 
 
      outfiles[i] = input_filename;
      outfiles[i] = input_filename;
 
 
      /* Figure out which compiler from the file's suffix.  */
      /* Figure out which compiler from the file's suffix.  */
 
 
      if (! combine_inputs)
      if (! combine_inputs)
        input_file_compiler
        input_file_compiler
          = lookup_compiler (infiles[i].name, input_filename_length,
          = lookup_compiler (infiles[i].name, input_filename_length,
                             infiles[i].language);
                             infiles[i].language);
      else
      else
        input_file_compiler = infiles[i].incompiler;
        input_file_compiler = infiles[i].incompiler;
 
 
      if (input_file_compiler)
      if (input_file_compiler)
        {
        {
          /* Ok, we found an applicable compiler.  Run its spec.  */
          /* Ok, we found an applicable compiler.  Run its spec.  */
 
 
          if (input_file_compiler->spec[0] == '#')
          if (input_file_compiler->spec[0] == '#')
            {
            {
              error ("%s: %s compiler not installed on this system",
              error ("%s: %s compiler not installed on this system",
                     input_filename, &input_file_compiler->spec[1]);
                     input_filename, &input_file_compiler->spec[1]);
              this_file_error = 1;
              this_file_error = 1;
            }
            }
          else
          else
            {
            {
              value = do_spec (input_file_compiler->spec);
              value = do_spec (input_file_compiler->spec);
              infiles[i].compiled = true;
              infiles[i].compiled = true;
              if (value < 0)
              if (value < 0)
                this_file_error = 1;
                this_file_error = 1;
            }
            }
        }
        }
 
 
      /* If this file's name does not contain a recognized suffix,
      /* If this file's name does not contain a recognized suffix,
         record it as explicit linker input.  */
         record it as explicit linker input.  */
 
 
      else
      else
        explicit_link_files[i] = 1;
        explicit_link_files[i] = 1;
 
 
      /* Clear the delete-on-failure queue, deleting the files in it
      /* Clear the delete-on-failure queue, deleting the files in it
         if this compilation failed.  */
         if this compilation failed.  */
 
 
      if (this_file_error)
      if (this_file_error)
        {
        {
          delete_failure_queue ();
          delete_failure_queue ();
          error_count++;
          error_count++;
        }
        }
      /* If this compilation succeeded, don't delete those files later.  */
      /* If this compilation succeeded, don't delete those files later.  */
      clear_failure_queue ();
      clear_failure_queue ();
    }
    }
 
 
  /* Reset the input file name to the first compile/object file name, for use
  /* Reset the input file name to the first compile/object file name, for use
     with %b in LINK_SPEC. We use the first input file that we can find
     with %b in LINK_SPEC. We use the first input file that we can find
     a compiler to compile it instead of using infiles.language since for
     a compiler to compile it instead of using infiles.language since for
     languages other than C we use aliases that we then lookup later.  */
     languages other than C we use aliases that we then lookup later.  */
  if (n_infiles > 0)
  if (n_infiles > 0)
    {
    {
      int i;
      int i;
 
 
      for (i = 0; i < n_infiles ; i++)
      for (i = 0; i < n_infiles ; i++)
        if (infiles[i].language && infiles[i].language[0] != '*')
        if (infiles[i].language && infiles[i].language[0] != '*')
          {
          {
            set_input (infiles[i].name);
            set_input (infiles[i].name);
            break;
            break;
          }
          }
    }
    }
 
 
  if (error_count == 0)
  if (error_count == 0)
    {
    {
      /* Make sure INPUT_FILE_NUMBER points to first available open
      /* Make sure INPUT_FILE_NUMBER points to first available open
         slot.  */
         slot.  */
      input_file_number = n_infiles;
      input_file_number = n_infiles;
      if (lang_specific_pre_link ())
      if (lang_specific_pre_link ())
        error_count++;
        error_count++;
    }
    }
 
 
  /* Determine if there are any linker input files.  */
  /* Determine if there are any linker input files.  */
  num_linker_inputs = 0;
  num_linker_inputs = 0;
  for (i = 0; (int) i < n_infiles; i++)
  for (i = 0; (int) i < n_infiles; i++)
    if (explicit_link_files[i] || outfiles[i] != NULL)
    if (explicit_link_files[i] || outfiles[i] != NULL)
      num_linker_inputs++;
      num_linker_inputs++;
 
 
  /* Run ld to link all the compiler output files.  */
  /* Run ld to link all the compiler output files.  */
 
 
  if (num_linker_inputs > 0 && error_count == 0)
  if (num_linker_inputs > 0 && error_count == 0)
    {
    {
      int tmp = execution_count;
      int tmp = execution_count;
 
 
      /* We'll use ld if we can't find collect2.  */
      /* We'll use ld if we can't find collect2.  */
      if (! strcmp (linker_name_spec, "collect2"))
      if (! strcmp (linker_name_spec, "collect2"))
        {
        {
          char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
          char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
          if (s == NULL)
          if (s == NULL)
            linker_name_spec = "ld";
            linker_name_spec = "ld";
        }
        }
      /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
      /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
         for collect.  */
         for collect.  */
      putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
      putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
      putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
      putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
 
 
      value = do_spec (link_command_spec);
      value = do_spec (link_command_spec);
      if (value < 0)
      if (value < 0)
        error_count = 1;
        error_count = 1;
      linker_was_run = (tmp != execution_count);
      linker_was_run = (tmp != execution_count);
    }
    }
 
 
  /* If options said don't run linker,
  /* If options said don't run linker,
     complain about input files to be given to the linker.  */
     complain about input files to be given to the linker.  */
 
 
  if (! linker_was_run && error_count == 0)
  if (! linker_was_run && error_count == 0)
    for (i = 0; (int) i < n_infiles; i++)
    for (i = 0; (int) i < n_infiles; i++)
      if (explicit_link_files[i])
      if (explicit_link_files[i])
        error ("%s: linker input file unused because linking not done",
        error ("%s: linker input file unused because linking not done",
               outfiles[i]);
               outfiles[i]);
 
 
  /* Delete some or all of the temporary files we made.  */
  /* Delete some or all of the temporary files we made.  */
 
 
  if (error_count)
  if (error_count)
    delete_failure_queue ();
    delete_failure_queue ();
  delete_temp_files ();
  delete_temp_files ();
 
 
  if (print_help_list)
  if (print_help_list)
    {
    {
      printf (("\nFor bug reporting instructions, please see:\n"));
      printf (("\nFor bug reporting instructions, please see:\n"));
      printf ("%s\n", bug_report_url);
      printf ("%s\n", bug_report_url);
    }
    }
 
 
  return (signal_count != 0 ? 2
  return (signal_count != 0 ? 2
          : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
          : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
          : 0);
          : 0);
}
}
 
 
/* Find the proper compilation spec for the file name NAME,
/* Find the proper compilation spec for the file name NAME,
   whose length is LENGTH.  LANGUAGE is the specified language,
   whose length is LENGTH.  LANGUAGE is the specified language,
   or 0 if this file is to be passed to the linker.  */
   or 0 if this file is to be passed to the linker.  */
 
 
static struct compiler *
static struct compiler *
lookup_compiler (const char *name, size_t length, const char *language)
lookup_compiler (const char *name, size_t length, const char *language)
{
{
  struct compiler *cp;
  struct compiler *cp;
 
 
  /* If this was specified by the user to be a linker input, indicate that.  */
  /* If this was specified by the user to be a linker input, indicate that.  */
  if (language != 0 && language[0] == '*')
  if (language != 0 && language[0] == '*')
    return 0;
    return 0;
 
 
  /* Otherwise, look for the language, if one is spec'd.  */
  /* Otherwise, look for the language, if one is spec'd.  */
  if (language != 0)
  if (language != 0)
    {
    {
      for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
      for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
        if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
        if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
          return cp;
          return cp;
 
 
      error ("language %s not recognized", language);
      error ("language %s not recognized", language);
      return 0;
      return 0;
    }
    }
 
 
  /* Look for a suffix.  */
  /* Look for a suffix.  */
  for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
  for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
    {
    {
      if (/* The suffix `-' matches only the file name `-'.  */
      if (/* The suffix `-' matches only the file name `-'.  */
          (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
          (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
          || (strlen (cp->suffix) < length
          || (strlen (cp->suffix) < length
              /* See if the suffix matches the end of NAME.  */
              /* See if the suffix matches the end of NAME.  */
              && !strcmp (cp->suffix,
              && !strcmp (cp->suffix,
                          name + length - strlen (cp->suffix))
                          name + length - strlen (cp->suffix))
         ))
         ))
        break;
        break;
    }
    }
 
 
#if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
#if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
  /* Look again, but case-insensitively this time.  */
  /* Look again, but case-insensitively this time.  */
  if (cp < compilers)
  if (cp < compilers)
    for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
    for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
      {
      {
        if (/* The suffix `-' matches only the file name `-'.  */
        if (/* The suffix `-' matches only the file name `-'.  */
            (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
            (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
            || (strlen (cp->suffix) < length
            || (strlen (cp->suffix) < length
                /* See if the suffix matches the end of NAME.  */
                /* See if the suffix matches the end of NAME.  */
                && ((!strcmp (cp->suffix,
                && ((!strcmp (cp->suffix,
                             name + length - strlen (cp->suffix))
                             name + length - strlen (cp->suffix))
                     || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
                     || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
                    && !strcasecmp (cp->suffix,
                    && !strcasecmp (cp->suffix,
                                    name + length - strlen (cp->suffix)))
                                    name + length - strlen (cp->suffix)))
           ))
           ))
          break;
          break;
      }
      }
#endif
#endif
 
 
  if (cp >= compilers)
  if (cp >= compilers)
    {
    {
      if (cp->spec[0] != '@')
      if (cp->spec[0] != '@')
        /* A non-alias entry: return it.  */
        /* A non-alias entry: return it.  */
        return cp;
        return cp;
 
 
      /* An alias entry maps a suffix to a language.
      /* An alias entry maps a suffix to a language.
         Search for the language; pass 0 for NAME and LENGTH
         Search for the language; pass 0 for NAME and LENGTH
         to avoid infinite recursion if language not found.  */
         to avoid infinite recursion if language not found.  */
      return lookup_compiler (NULL, 0, cp->spec + 1);
      return lookup_compiler (NULL, 0, cp->spec + 1);
    }
    }
  return 0;
  return 0;
}
}


static char *
static char *
save_string (const char *s, int len)
save_string (const char *s, int len)
{
{
  char *result = XNEWVEC (char, len + 1);
  char *result = XNEWVEC (char, len + 1);
 
 
  memcpy (result, s, len);
  memcpy (result, s, len);
  result[len] = 0;
  result[len] = 0;
  return result;
  return result;
}
}
 
 
void
void
pfatal_with_name (const char *name)
pfatal_with_name (const char *name)
{
{
  perror_with_name (name);
  perror_with_name (name);
  delete_temp_files ();
  delete_temp_files ();
  exit (1);
  exit (1);
}
}
 
 
static void
static void
perror_with_name (const char *name)
perror_with_name (const char *name)
{
{
  error ("%s: %s", name, xstrerror (errno));
  error ("%s: %s", name, xstrerror (errno));
}
}
 
 
/* Output an error message and exit.  */
/* Output an error message and exit.  */
 
 
void
void
fancy_abort (const char *file, int line, const char *func)
fancy_abort (const char *file, int line, const char *func)
{
{
  fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
  fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
}
}


/* Output an error message and exit.  */
/* Output an error message and exit.  */
 
 
void
void
fatal_ice (const char *cmsgid, ...)
fatal_ice (const char *cmsgid, ...)
{
{
  va_list ap;
  va_list ap;
 
 
  va_start (ap, cmsgid);
  va_start (ap, cmsgid);
 
 
  fprintf (stderr, "%s: ", programname);
  fprintf (stderr, "%s: ", programname);
  vfprintf (stderr, _(cmsgid), ap);
  vfprintf (stderr, _(cmsgid), ap);
  va_end (ap);
  va_end (ap);
  fprintf (stderr, "\n");
  fprintf (stderr, "\n");
  delete_temp_files ();
  delete_temp_files ();
  exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
  exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
}
}
 
 
void
void
fatal (const char *cmsgid, ...)
fatal (const char *cmsgid, ...)
{
{
  va_list ap;
  va_list ap;
 
 
  va_start (ap, cmsgid);
  va_start (ap, cmsgid);
 
 
  fprintf (stderr, "%s: ", programname);
  fprintf (stderr, "%s: ", programname);
  vfprintf (stderr, _(cmsgid), ap);
  vfprintf (stderr, _(cmsgid), ap);
  va_end (ap);
  va_end (ap);
  fprintf (stderr, "\n");
  fprintf (stderr, "\n");
  delete_temp_files ();
  delete_temp_files ();
  exit (1);
  exit (1);
}
}
 
 
/* The argument is actually c-format, not gcc-internal-format,
/* The argument is actually c-format, not gcc-internal-format,
   but because functions with identical names are used through
   but because functions with identical names are used through
   the rest of the compiler with gcc-internal-format, we just
   the rest of the compiler with gcc-internal-format, we just
   need to hope all users of these functions use the common
   need to hope all users of these functions use the common
   subset between c-format and gcc-internal-format.  */
   subset between c-format and gcc-internal-format.  */
 
 
void
void
error (const char *gmsgid, ...)
error (const char *gmsgid, ...)
{
{
  va_list ap;
  va_list ap;
 
 
  va_start (ap, gmsgid);
  va_start (ap, gmsgid);
  fprintf (stderr, "%s: ", programname);
  fprintf (stderr, "%s: ", programname);
  vfprintf (stderr, _(gmsgid), ap);
  vfprintf (stderr, _(gmsgid), ap);
  va_end (ap);
  va_end (ap);
 
 
  fprintf (stderr, "\n");
  fprintf (stderr, "\n");
}
}
 
 
static void
static void
notice (const char *cmsgid, ...)
notice (const char *cmsgid, ...)
{
{
  va_list ap;
  va_list ap;
 
 
  va_start (ap, cmsgid);
  va_start (ap, cmsgid);
  vfprintf (stderr, _(cmsgid), ap);
  vfprintf (stderr, _(cmsgid), ap);
  va_end (ap);
  va_end (ap);
}
}


static inline void
static inline void
validate_switches_from_spec (const char *spec)
validate_switches_from_spec (const char *spec)
{
{
  const char *p = spec;
  const char *p = spec;
  char c;
  char c;
  while ((c = *p++))
  while ((c = *p++))
    if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
    if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
      /* We have a switch spec.  */
      /* We have a switch spec.  */
      p = validate_switches (p + 1);
      p = validate_switches (p + 1);
}
}
 
 
static void
static void
validate_all_switches (void)
validate_all_switches (void)
{
{
  struct compiler *comp;
  struct compiler *comp;
  struct spec_list *spec;
  struct spec_list *spec;
 
 
  for (comp = compilers; comp->spec; comp++)
  for (comp = compilers; comp->spec; comp++)
    validate_switches_from_spec (comp->spec);
    validate_switches_from_spec (comp->spec);
 
 
  /* Look through the linked list of specs read from the specs file.  */
  /* Look through the linked list of specs read from the specs file.  */
  for (spec = specs; spec; spec = spec->next)
  for (spec = specs; spec; spec = spec->next)
    validate_switches_from_spec (*spec->ptr_spec);
    validate_switches_from_spec (*spec->ptr_spec);
 
 
  validate_switches_from_spec (link_command_spec);
  validate_switches_from_spec (link_command_spec);
}
}
 
 
/* Look at the switch-name that comes after START
/* Look at the switch-name that comes after START
   and mark as valid all supplied switches that match it.  */
   and mark as valid all supplied switches that match it.  */
 
 
static const char *
static const char *
validate_switches (const char *start)
validate_switches (const char *start)
{
{
  const char *p = start;
  const char *p = start;
  const char *atom;
  const char *atom;
  size_t len;
  size_t len;
  int i;
  int i;
  bool suffix = false;
  bool suffix = false;
  bool starred = false;
  bool starred = false;
 
 
#define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
#define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
 
 
next_member:
next_member:
  SKIP_WHITE ();
  SKIP_WHITE ();
 
 
  if (*p == '!')
  if (*p == '!')
    p++;
    p++;
 
 
  SKIP_WHITE ();
  SKIP_WHITE ();
  if (*p == '.')
  if (*p == '.')
    suffix = true, p++;
    suffix = true, p++;
 
 
  atom = p;
  atom = p;
  while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
  while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
         || *p == ',' || *p == '.' || *p == '@')
         || *p == ',' || *p == '.' || *p == '@')
    p++;
    p++;
  len = p - atom;
  len = p - atom;
 
 
  if (*p == '*')
  if (*p == '*')
    starred = true, p++;
    starred = true, p++;
 
 
  SKIP_WHITE ();
  SKIP_WHITE ();
 
 
  if (!suffix)
  if (!suffix)
    {
    {
      /* Mark all matching switches as valid.  */
      /* Mark all matching switches as valid.  */
      for (i = 0; i < n_switches; i++)
      for (i = 0; i < n_switches; i++)
        if (!strncmp (switches[i].part1, atom, len)
        if (!strncmp (switches[i].part1, atom, len)
            && (starred || switches[i].part1[len] == 0))
            && (starred || switches[i].part1[len] == 0))
          switches[i].validated = 1;
          switches[i].validated = 1;
    }
    }
 
 
  if (*p) p++;
  if (*p) p++;
  if (*p && (p[-1] == '|' || p[-1] == '&'))
  if (*p && (p[-1] == '|' || p[-1] == '&'))
    goto next_member;
    goto next_member;
 
 
  if (*p && p[-1] == ':')
  if (*p && p[-1] == ':')
    {
    {
      while (*p && *p != ';' && *p != '}')
      while (*p && *p != ';' && *p != '}')
        {
        {
          if (*p == '%')
          if (*p == '%')
            {
            {
              p++;
              p++;
              if (*p == '{' || *p == '<')
              if (*p == '{' || *p == '<')
                p = validate_switches (p+1);
                p = validate_switches (p+1);
              else if (p[0] == 'W' && p[1] == '{')
              else if (p[0] == 'W' && p[1] == '{')
                p = validate_switches (p+2);
                p = validate_switches (p+2);
            }
            }
          else
          else
            p++;
            p++;
        }
        }
 
 
      if (*p) p++;
      if (*p) p++;
      if (*p && p[-1] == ';')
      if (*p && p[-1] == ';')
        goto next_member;
        goto next_member;
    }
    }
 
 
  return p;
  return p;
#undef SKIP_WHITE
#undef SKIP_WHITE
}
}


struct mdswitchstr
struct mdswitchstr
{
{
  const char *str;
  const char *str;
  int len;
  int len;
};
};
 
 
static struct mdswitchstr *mdswitches;
static struct mdswitchstr *mdswitches;
static int n_mdswitches;
static int n_mdswitches;
 
 
/* Check whether a particular argument was used.  The first time we
/* Check whether a particular argument was used.  The first time we
   canonicalize the switches to keep only the ones we care about.  */
   canonicalize the switches to keep only the ones we care about.  */
 
 
static int
static int
used_arg (const char *p, int len)
used_arg (const char *p, int len)
{
{
  struct mswitchstr
  struct mswitchstr
  {
  {
    const char *str;
    const char *str;
    const char *replace;
    const char *replace;
    int len;
    int len;
    int rep_len;
    int rep_len;
  };
  };
 
 
  static struct mswitchstr *mswitches;
  static struct mswitchstr *mswitches;
  static int n_mswitches;
  static int n_mswitches;
  int i, j;
  int i, j;
 
 
  if (!mswitches)
  if (!mswitches)
    {
    {
      struct mswitchstr *matches;
      struct mswitchstr *matches;
      const char *q;
      const char *q;
      int cnt = 0;
      int cnt = 0;
 
 
      /* Break multilib_matches into the component strings of string
      /* Break multilib_matches into the component strings of string
         and replacement string.  */
         and replacement string.  */
      for (q = multilib_matches; *q != '\0'; q++)
      for (q = multilib_matches; *q != '\0'; q++)
        if (*q == ';')
        if (*q == ';')
          cnt++;
          cnt++;
 
 
      matches = alloca ((sizeof (struct mswitchstr)) * cnt);
      matches = alloca ((sizeof (struct mswitchstr)) * cnt);
      i = 0;
      i = 0;
      q = multilib_matches;
      q = multilib_matches;
      while (*q != '\0')
      while (*q != '\0')
        {
        {
          matches[i].str = q;
          matches[i].str = q;
          while (*q != ' ')
          while (*q != ' ')
            {
            {
              if (*q == '\0')
              if (*q == '\0')
                {
                {
                invalid_matches:
                invalid_matches:
                  fatal ("multilib spec '%s' is invalid", multilib_matches);
                  fatal ("multilib spec '%s' is invalid", multilib_matches);
                }
                }
              q++;
              q++;
            }
            }
          matches[i].len = q - matches[i].str;
          matches[i].len = q - matches[i].str;
 
 
          matches[i].replace = ++q;
          matches[i].replace = ++q;
          while (*q != ';' && *q != '\0')
          while (*q != ';' && *q != '\0')
            {
            {
              if (*q == ' ')
              if (*q == ' ')
                goto invalid_matches;
                goto invalid_matches;
              q++;
              q++;
            }
            }
          matches[i].rep_len = q - matches[i].replace;
          matches[i].rep_len = q - matches[i].replace;
          i++;
          i++;
          if (*q == ';')
          if (*q == ';')
            q++;
            q++;
        }
        }
 
 
      /* Now build a list of the replacement string for switches that we care
      /* Now build a list of the replacement string for switches that we care
         about.  Make sure we allocate at least one entry.  This prevents
         about.  Make sure we allocate at least one entry.  This prevents
         xmalloc from calling fatal, and prevents us from re-executing this
         xmalloc from calling fatal, and prevents us from re-executing this
         block of code.  */
         block of code.  */
      mswitches
      mswitches
        = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
        = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
      for (i = 0; i < n_switches; i++)
      for (i = 0; i < n_switches; i++)
        if (switches[i].live_cond != SWITCH_IGNORE)
        if (switches[i].live_cond != SWITCH_IGNORE)
          {
          {
            int xlen = strlen (switches[i].part1);
            int xlen = strlen (switches[i].part1);
            for (j = 0; j < cnt; j++)
            for (j = 0; j < cnt; j++)
              if (xlen == matches[j].len
              if (xlen == matches[j].len
                  && ! strncmp (switches[i].part1, matches[j].str, xlen))
                  && ! strncmp (switches[i].part1, matches[j].str, xlen))
                {
                {
                  mswitches[n_mswitches].str = matches[j].replace;
                  mswitches[n_mswitches].str = matches[j].replace;
                  mswitches[n_mswitches].len = matches[j].rep_len;
                  mswitches[n_mswitches].len = matches[j].rep_len;
                  mswitches[n_mswitches].replace = (char *) 0;
                  mswitches[n_mswitches].replace = (char *) 0;
                  mswitches[n_mswitches].rep_len = 0;
                  mswitches[n_mswitches].rep_len = 0;
                  n_mswitches++;
                  n_mswitches++;
                  break;
                  break;
                }
                }
          }
          }
 
 
      /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
      /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
         on the command line nor any options mutually incompatible with
         on the command line nor any options mutually incompatible with
         them.  */
         them.  */
      for (i = 0; i < n_mdswitches; i++)
      for (i = 0; i < n_mdswitches; i++)
        {
        {
          const char *r;
          const char *r;
 
 
          for (q = multilib_options; *q != '\0'; q++)
          for (q = multilib_options; *q != '\0'; q++)
            {
            {
              while (*q == ' ')
              while (*q == ' ')
                q++;
                q++;
 
 
              r = q;
              r = q;
              while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
              while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
                     || strchr (" /", q[mdswitches[i].len]) == NULL)
                     || strchr (" /", q[mdswitches[i].len]) == NULL)
                {
                {
                  while (*q != ' ' && *q != '/' && *q != '\0')
                  while (*q != ' ' && *q != '/' && *q != '\0')
                    q++;
                    q++;
                  if (*q != '/')
                  if (*q != '/')
                    break;
                    break;
                  q++;
                  q++;
                }
                }
 
 
              if (*q != ' ' && *q != '\0')
              if (*q != ' ' && *q != '\0')
                {
                {
                  while (*r != ' ' && *r != '\0')
                  while (*r != ' ' && *r != '\0')
                    {
                    {
                      q = r;
                      q = r;
                      while (*q != ' ' && *q != '/' && *q != '\0')
                      while (*q != ' ' && *q != '/' && *q != '\0')
                        q++;
                        q++;
 
 
                      if (used_arg (r, q - r))
                      if (used_arg (r, q - r))
                        break;
                        break;
 
 
                      if (*q != '/')
                      if (*q != '/')
                        {
                        {
                          mswitches[n_mswitches].str = mdswitches[i].str;
                          mswitches[n_mswitches].str = mdswitches[i].str;
                          mswitches[n_mswitches].len = mdswitches[i].len;
                          mswitches[n_mswitches].len = mdswitches[i].len;
                          mswitches[n_mswitches].replace = (char *) 0;
                          mswitches[n_mswitches].replace = (char *) 0;
                          mswitches[n_mswitches].rep_len = 0;
                          mswitches[n_mswitches].rep_len = 0;
                          n_mswitches++;
                          n_mswitches++;
                          break;
                          break;
                        }
                        }
 
 
                      r = q + 1;
                      r = q + 1;
                    }
                    }
                  break;
                  break;
                }
                }
            }
            }
        }
        }
    }
    }
 
 
  for (i = 0; i < n_mswitches; i++)
  for (i = 0; i < n_mswitches; i++)
    if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
    if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
      return 1;
      return 1;
 
 
  return 0;
  return 0;
}
}
 
 
static int
static int
default_arg (const char *p, int len)
default_arg (const char *p, int len)
{
{
  int i;
  int i;
 
 
  for (i = 0; i < n_mdswitches; i++)
  for (i = 0; i < n_mdswitches; i++)
    if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
    if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
      return 1;
      return 1;
 
 
  return 0;
  return 0;
}
}
 
 
/* Work out the subdirectory to use based on the options. The format of
/* Work out the subdirectory to use based on the options. The format of
   multilib_select is a list of elements. Each element is a subdirectory
   multilib_select is a list of elements. Each element is a subdirectory
   name followed by a list of options followed by a semicolon. The format
   name followed by a list of options followed by a semicolon. The format
   of multilib_exclusions is the same, but without the preceding
   of multilib_exclusions is the same, but without the preceding
   directory. First gcc will check the exclusions, if none of the options
   directory. First gcc will check the exclusions, if none of the options
   beginning with an exclamation point are present, and all of the other
   beginning with an exclamation point are present, and all of the other
   options are present, then we will ignore this completely. Passing
   options are present, then we will ignore this completely. Passing
   that, gcc will consider each multilib_select in turn using the same
   that, gcc will consider each multilib_select in turn using the same
   rules for matching the options. If a match is found, that subdirectory
   rules for matching the options. If a match is found, that subdirectory
   will be used.  */
   will be used.  */
 
 
static void
static void
set_multilib_dir (void)
set_multilib_dir (void)
{
{
  const char *p;
  const char *p;
  unsigned int this_path_len;
  unsigned int this_path_len;
  const char *this_path, *this_arg;
  const char *this_path, *this_arg;
  const char *start, *end;
  const char *start, *end;
  int not_arg;
  int not_arg;
  int ok, ndfltok, first;
  int ok, ndfltok, first;
 
 
  n_mdswitches = 0;
  n_mdswitches = 0;
  start = multilib_defaults;
  start = multilib_defaults;
  while (*start == ' ' || *start == '\t')
  while (*start == ' ' || *start == '\t')
    start++;
    start++;
  while (*start != '\0')
  while (*start != '\0')
    {
    {
      n_mdswitches++;
      n_mdswitches++;
      while (*start != ' ' && *start != '\t' && *start != '\0')
      while (*start != ' ' && *start != '\t' && *start != '\0')
        start++;
        start++;
      while (*start == ' ' || *start == '\t')
      while (*start == ' ' || *start == '\t')
        start++;
        start++;
    }
    }
 
 
  if (n_mdswitches)
  if (n_mdswitches)
    {
    {
      int i = 0;
      int i = 0;
 
 
      mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
      mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
      for (start = multilib_defaults; *start != '\0'; start = end + 1)
      for (start = multilib_defaults; *start != '\0'; start = end + 1)
        {
        {
          while (*start == ' ' || *start == '\t')
          while (*start == ' ' || *start == '\t')
            start++;
            start++;
 
 
          if (*start == '\0')
          if (*start == '\0')
            break;
            break;
 
 
          for (end = start + 1;
          for (end = start + 1;
               *end != ' ' && *end != '\t' && *end != '\0'; end++)
               *end != ' ' && *end != '\t' && *end != '\0'; end++)
            ;
            ;
 
 
          obstack_grow (&multilib_obstack, start, end - start);
          obstack_grow (&multilib_obstack, start, end - start);
          obstack_1grow (&multilib_obstack, 0);
          obstack_1grow (&multilib_obstack, 0);
          mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
          mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
          mdswitches[i++].len = end - start;
          mdswitches[i++].len = end - start;
 
 
          if (*end == '\0')
          if (*end == '\0')
            break;
            break;
        }
        }
    }
    }
 
 
  p = multilib_exclusions;
  p = multilib_exclusions;
  while (*p != '\0')
  while (*p != '\0')
    {
    {
      /* Ignore newlines.  */
      /* Ignore newlines.  */
      if (*p == '\n')
      if (*p == '\n')
        {
        {
          ++p;
          ++p;
          continue;
          continue;
        }
        }
 
 
      /* Check the arguments.  */
      /* Check the arguments.  */
      ok = 1;
      ok = 1;
      while (*p != ';')
      while (*p != ';')
        {
        {
          if (*p == '\0')
          if (*p == '\0')
            {
            {
            invalid_exclusions:
            invalid_exclusions:
              fatal ("multilib exclusions '%s' is invalid",
              fatal ("multilib exclusions '%s' is invalid",
                     multilib_exclusions);
                     multilib_exclusions);
            }
            }
 
 
          if (! ok)
          if (! ok)
            {
            {
              ++p;
              ++p;
              continue;
              continue;
            }
            }
 
 
          this_arg = p;
          this_arg = p;
          while (*p != ' ' && *p != ';')
          while (*p != ' ' && *p != ';')
            {
            {
              if (*p == '\0')
              if (*p == '\0')
                goto invalid_exclusions;
                goto invalid_exclusions;
              ++p;
              ++p;
            }
            }
 
 
          if (*this_arg != '!')
          if (*this_arg != '!')
            not_arg = 0;
            not_arg = 0;
          else
          else
            {
            {
              not_arg = 1;
              not_arg = 1;
              ++this_arg;
              ++this_arg;
            }
            }
 
 
          ok = used_arg (this_arg, p - this_arg);
          ok = used_arg (this_arg, p - this_arg);
          if (not_arg)
          if (not_arg)
            ok = ! ok;
            ok = ! ok;
 
 
          if (*p == ' ')
          if (*p == ' ')
            ++p;
            ++p;
        }
        }
 
 
      if (ok)
      if (ok)
        return;
        return;
 
 
      ++p;
      ++p;
    }
    }
 
 
  first = 1;
  first = 1;
  p = multilib_select;
  p = multilib_select;
  while (*p != '\0')
  while (*p != '\0')
    {
    {
      /* Ignore newlines.  */
      /* Ignore newlines.  */
      if (*p == '\n')
      if (*p == '\n')
        {
        {
          ++p;
          ++p;
          continue;
          continue;
        }
        }
 
 
      /* Get the initial path.  */
      /* Get the initial path.  */
      this_path = p;
      this_path = p;
      while (*p != ' ')
      while (*p != ' ')
        {
        {
          if (*p == '\0')
          if (*p == '\0')
            {
            {
            invalid_select:
            invalid_select:
              fatal ("multilib select '%s' is invalid",
              fatal ("multilib select '%s' is invalid",
                     multilib_select);
                     multilib_select);
            }
            }
          ++p;
          ++p;
        }
        }
      this_path_len = p - this_path;
      this_path_len = p - this_path;
 
 
      /* Check the arguments.  */
      /* Check the arguments.  */
      ok = 1;
      ok = 1;
      ndfltok = 1;
      ndfltok = 1;
      ++p;
      ++p;
      while (*p != ';')
      while (*p != ';')
        {
        {
          if (*p == '\0')
          if (*p == '\0')
            goto invalid_select;
            goto invalid_select;
 
 
          if (! ok)
          if (! ok)
            {
            {
              ++p;
              ++p;
              continue;
              continue;
            }
            }
 
 
          this_arg = p;
          this_arg = p;
          while (*p != ' ' && *p != ';')
          while (*p != ' ' && *p != ';')
            {
            {
              if (*p == '\0')
              if (*p == '\0')
                goto invalid_select;
                goto invalid_select;
              ++p;
              ++p;
            }
            }
 
 
          if (*this_arg != '!')
          if (*this_arg != '!')
            not_arg = 0;
            not_arg = 0;
          else
          else
            {
            {
              not_arg = 1;
              not_arg = 1;
              ++this_arg;
              ++this_arg;
            }
            }
 
 
          /* If this is a default argument, we can just ignore it.
          /* If this is a default argument, we can just ignore it.
             This is true even if this_arg begins with '!'.  Beginning
             This is true even if this_arg begins with '!'.  Beginning
             with '!' does not mean that this argument is necessarily
             with '!' does not mean that this argument is necessarily
             inappropriate for this library: it merely means that
             inappropriate for this library: it merely means that
             there is a more specific library which uses this
             there is a more specific library which uses this
             argument.  If this argument is a default, we need not
             argument.  If this argument is a default, we need not
             consider that more specific library.  */
             consider that more specific library.  */
          ok = used_arg (this_arg, p - this_arg);
          ok = used_arg (this_arg, p - this_arg);
          if (not_arg)
          if (not_arg)
            ok = ! ok;
            ok = ! ok;
 
 
          if (! ok)
          if (! ok)
            ndfltok = 0;
            ndfltok = 0;
 
 
          if (default_arg (this_arg, p - this_arg))
          if (default_arg (this_arg, p - this_arg))
            ok = 1;
            ok = 1;
 
 
          if (*p == ' ')
          if (*p == ' ')
            ++p;
            ++p;
        }
        }
 
 
      if (ok && first)
      if (ok && first)
        {
        {
          if (this_path_len != 1
          if (this_path_len != 1
              || this_path[0] != '.')
              || this_path[0] != '.')
            {
            {
              char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
              char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
              char *q;
              char *q;
 
 
              strncpy (new_multilib_dir, this_path, this_path_len);
              strncpy (new_multilib_dir, this_path, this_path_len);
              new_multilib_dir[this_path_len] = '\0';
              new_multilib_dir[this_path_len] = '\0';
              q = strchr (new_multilib_dir, ':');
              q = strchr (new_multilib_dir, ':');
              if (q != NULL)
              if (q != NULL)
                *q = '\0';
                *q = '\0';
              multilib_dir = new_multilib_dir;
              multilib_dir = new_multilib_dir;
            }
            }
          first = 0;
          first = 0;
        }
        }
 
 
      if (ndfltok)
      if (ndfltok)
        {
        {
          const char *q = this_path, *end = this_path + this_path_len;
          const char *q = this_path, *end = this_path + this_path_len;
 
 
          while (q < end && *q != ':')
          while (q < end && *q != ':')
            q++;
            q++;
          if (q < end)
          if (q < end)
            {
            {
              char *new_multilib_os_dir = XNEWVEC (char, end - q);
              char *new_multilib_os_dir = XNEWVEC (char, end - q);
              memcpy (new_multilib_os_dir, q + 1, end - q - 1);
              memcpy (new_multilib_os_dir, q + 1, end - q - 1);
              new_multilib_os_dir[end - q - 1] = '\0';
              new_multilib_os_dir[end - q - 1] = '\0';
              multilib_os_dir = new_multilib_os_dir;
              multilib_os_dir = new_multilib_os_dir;
              break;
              break;
            }
            }
        }
        }
 
 
      ++p;
      ++p;
    }
    }
 
 
  if (multilib_dir == NULL && multilib_os_dir != NULL
  if (multilib_dir == NULL && multilib_os_dir != NULL
      && strcmp (multilib_os_dir, ".") == 0)
      && strcmp (multilib_os_dir, ".") == 0)
    {
    {
      free ((char *) multilib_os_dir);
      free ((char *) multilib_os_dir);
      multilib_os_dir = NULL;
      multilib_os_dir = NULL;
    }
    }
  else if (multilib_dir != NULL && multilib_os_dir == NULL)
  else if (multilib_dir != NULL && multilib_os_dir == NULL)
    multilib_os_dir = multilib_dir;
    multilib_os_dir = multilib_dir;
}
}
 
 
/* Print out the multiple library subdirectory selection
/* Print out the multiple library subdirectory selection
   information.  This prints out a series of lines.  Each line looks
   information.  This prints out a series of lines.  Each line looks
   like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
   like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
   required.  Only the desired options are printed out, the negative
   required.  Only the desired options are printed out, the negative
   matches.  The options are print without a leading dash.  There are
   matches.  The options are print without a leading dash.  There are
   no spaces to make it easy to use the information in the shell.
   no spaces to make it easy to use the information in the shell.
   Each subdirectory is printed only once.  This assumes the ordering
   Each subdirectory is printed only once.  This assumes the ordering
   generated by the genmultilib script. Also, we leave out ones that match
   generated by the genmultilib script. Also, we leave out ones that match
   the exclusions.  */
   the exclusions.  */
 
 
static void
static void
print_multilib_info (void)
print_multilib_info (void)
{
{
  const char *p = multilib_select;
  const char *p = multilib_select;
  const char *last_path = 0, *this_path;
  const char *last_path = 0, *this_path;
  int skip;
  int skip;
  unsigned int last_path_len = 0;
  unsigned int last_path_len = 0;
 
 
  while (*p != '\0')
  while (*p != '\0')
    {
    {
      skip = 0;
      skip = 0;
      /* Ignore newlines.  */
      /* Ignore newlines.  */
      if (*p == '\n')
      if (*p == '\n')
        {
        {
          ++p;
          ++p;
          continue;
          continue;
        }
        }
 
 
      /* Get the initial path.  */
      /* Get the initial path.  */
      this_path = p;
      this_path = p;
      while (*p != ' ')
      while (*p != ' ')
        {
        {
          if (*p == '\0')
          if (*p == '\0')
            {
            {
            invalid_select:
            invalid_select:
              fatal ("multilib select '%s' is invalid", multilib_select);
              fatal ("multilib select '%s' is invalid", multilib_select);
            }
            }
 
 
          ++p;
          ++p;
        }
        }
 
 
      /* When --disable-multilib was used but target defines
      /* When --disable-multilib was used but target defines
         MULTILIB_OSDIRNAMES, entries starting with .: are there just
         MULTILIB_OSDIRNAMES, entries starting with .: are there just
         to find multilib_os_dir, so skip them from output.  */
         to find multilib_os_dir, so skip them from output.  */
      if (this_path[0] == '.' && this_path[1] == ':')
      if (this_path[0] == '.' && this_path[1] == ':')
        skip = 1;
        skip = 1;
 
 
      /* Check for matches with the multilib_exclusions. We don't bother
      /* Check for matches with the multilib_exclusions. We don't bother
         with the '!' in either list. If any of the exclusion rules match
         with the '!' in either list. If any of the exclusion rules match
         all of its options with the select rule, we skip it.  */
         all of its options with the select rule, we skip it.  */
      {
      {
        const char *e = multilib_exclusions;
        const char *e = multilib_exclusions;
        const char *this_arg;
        const char *this_arg;
 
 
        while (*e != '\0')
        while (*e != '\0')
          {
          {
            int m = 1;
            int m = 1;
            /* Ignore newlines.  */
            /* Ignore newlines.  */
            if (*e == '\n')
            if (*e == '\n')
              {
              {
                ++e;
                ++e;
                continue;
                continue;
              }
              }
 
 
            /* Check the arguments.  */
            /* Check the arguments.  */
            while (*e != ';')
            while (*e != ';')
              {
              {
                const char *q;
                const char *q;
                int mp = 0;
                int mp = 0;
 
 
                if (*e == '\0')
                if (*e == '\0')
                  {
                  {
                  invalid_exclusion:
                  invalid_exclusion:
                    fatal ("multilib exclusion '%s' is invalid",
                    fatal ("multilib exclusion '%s' is invalid",
                           multilib_exclusions);
                           multilib_exclusions);
                  }
                  }
 
 
                if (! m)
                if (! m)
                  {
                  {
                    ++e;
                    ++e;
                    continue;
                    continue;
                  }
                  }
 
 
                this_arg = e;
                this_arg = e;
 
 
                while (*e != ' ' && *e != ';')
                while (*e != ' ' && *e != ';')
                  {
                  {
                    if (*e == '\0')
                    if (*e == '\0')
                      goto invalid_exclusion;
                      goto invalid_exclusion;
                    ++e;
                    ++e;
                  }
                  }
 
 
                q = p + 1;
                q = p + 1;
                while (*q != ';')
                while (*q != ';')
                  {
                  {
                    const char *arg;
                    const char *arg;
                    int len = e - this_arg;
                    int len = e - this_arg;
 
 
                    if (*q == '\0')
                    if (*q == '\0')
                      goto invalid_select;
                      goto invalid_select;
 
 
                    arg = q;
                    arg = q;
 
 
                    while (*q != ' ' && *q != ';')
                    while (*q != ' ' && *q != ';')
                      {
                      {
                        if (*q == '\0')
                        if (*q == '\0')
                          goto invalid_select;
                          goto invalid_select;
                        ++q;
                        ++q;
                      }
                      }
 
 
                    if (! strncmp (arg, this_arg,
                    if (! strncmp (arg, this_arg,
                                   (len < q - arg) ? q - arg : len)
                                   (len < q - arg) ? q - arg : len)
                        || default_arg (this_arg, e - this_arg))
                        || default_arg (this_arg, e - this_arg))
                      {
                      {
                        mp = 1;
                        mp = 1;
                        break;
                        break;
                      }
                      }
 
 
                    if (*q == ' ')
                    if (*q == ' ')
                      ++q;
                      ++q;
                  }
                  }
 
 
                if (! mp)
                if (! mp)
                  m = 0;
                  m = 0;
 
 
                if (*e == ' ')
                if (*e == ' ')
                  ++e;
                  ++e;
              }
              }
 
 
            if (m)
            if (m)
              {
              {
                skip = 1;
                skip = 1;
                break;
                break;
              }
              }
 
 
            if (*e != '\0')
            if (*e != '\0')
              ++e;
              ++e;
          }
          }
      }
      }
 
 
      if (! skip)
      if (! skip)
        {
        {
          /* If this is a duplicate, skip it.  */
          /* If this is a duplicate, skip it.  */
          skip = (last_path != 0
          skip = (last_path != 0
                  && (unsigned int) (p - this_path) == last_path_len
                  && (unsigned int) (p - this_path) == last_path_len
                  && ! strncmp (last_path, this_path, last_path_len));
                  && ! strncmp (last_path, this_path, last_path_len));
 
 
          last_path = this_path;
          last_path = this_path;
          last_path_len = p - this_path;
          last_path_len = p - this_path;
        }
        }
 
 
      /* If this directory requires any default arguments, we can skip
      /* If this directory requires any default arguments, we can skip
         it.  We will already have printed a directory identical to
         it.  We will already have printed a directory identical to
         this one which does not require that default argument.  */
         this one which does not require that default argument.  */
      if (! skip)
      if (! skip)
        {
        {
          const char *q;
          const char *q;
 
 
          q = p + 1;
          q = p + 1;
          while (*q != ';')
          while (*q != ';')
            {
            {
              const char *arg;
              const char *arg;
 
 
              if (*q == '\0')
              if (*q == '\0')
                goto invalid_select;
                goto invalid_select;
 
 
              if (*q == '!')
              if (*q == '!')
                arg = NULL;
                arg = NULL;
              else
              else
                arg = q;
                arg = q;
 
 
              while (*q != ' ' && *q != ';')
              while (*q != ' ' && *q != ';')
                {
                {
                  if (*q == '\0')
                  if (*q == '\0')
                    goto invalid_select;
                    goto invalid_select;
                  ++q;
                  ++q;
                }
                }
 
 
              if (arg != NULL
              if (arg != NULL
                  && default_arg (arg, q - arg))
                  && default_arg (arg, q - arg))
                {
                {
                  skip = 1;
                  skip = 1;
                  break;
                  break;
                }
                }
 
 
              if (*q == ' ')
              if (*q == ' ')
                ++q;
                ++q;
            }
            }
        }
        }
 
 
      if (! skip)
      if (! skip)
        {
        {
          const char *p1;
          const char *p1;
 
 
          for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
          for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
            putchar (*p1);
            putchar (*p1);
          putchar (';');
          putchar (';');
        }
        }
 
 
      ++p;
      ++p;
      while (*p != ';')
      while (*p != ';')
        {
        {
          int use_arg;
          int use_arg;
 
 
          if (*p == '\0')
          if (*p == '\0')
            goto invalid_select;
            goto invalid_select;
 
 
          if (skip)
          if (skip)
            {
            {
              ++p;
              ++p;
              continue;
              continue;
            }
            }
 
 
          use_arg = *p != '!';
          use_arg = *p != '!';
 
 
          if (use_arg)
          if (use_arg)
            putchar ('@');
            putchar ('@');
 
 
          while (*p != ' ' && *p != ';')
          while (*p != ' ' && *p != ';')
            {
            {
              if (*p == '\0')
              if (*p == '\0')
                goto invalid_select;
                goto invalid_select;
              if (use_arg)
              if (use_arg)
                putchar (*p);
                putchar (*p);
              ++p;
              ++p;
            }
            }
 
 
          if (*p == ' ')
          if (*p == ' ')
            ++p;
            ++p;
        }
        }
 
 
      if (! skip)
      if (! skip)
        {
        {
          /* If there are extra options, print them now.  */
          /* If there are extra options, print them now.  */
          if (multilib_extra && *multilib_extra)
          if (multilib_extra && *multilib_extra)
            {
            {
              int print_at = TRUE;
              int print_at = TRUE;
              const char *q;
              const char *q;
 
 
              for (q = multilib_extra; *q != '\0'; q++)
              for (q = multilib_extra; *q != '\0'; q++)
                {
                {
                  if (*q == ' ')
                  if (*q == ' ')
                    print_at = TRUE;
                    print_at = TRUE;
                  else
                  else
                    {
                    {
                      if (print_at)
                      if (print_at)
                        putchar ('@');
                        putchar ('@');
                      putchar (*q);
                      putchar (*q);
                      print_at = FALSE;
                      print_at = FALSE;
                    }
                    }
                }
                }
            }
            }
 
 
          putchar ('\n');
          putchar ('\n');
        }
        }
 
 
      ++p;
      ++p;
    }
    }
}
}


/* if-exists built-in spec function.
/* if-exists built-in spec function.
 
 
   Checks to see if the file specified by the absolute pathname in
   Checks to see if the file specified by the absolute pathname in
   ARGS exists.  Returns that pathname if found.
   ARGS exists.  Returns that pathname if found.
 
 
   The usual use for this function is to check for a library file
   The usual use for this function is to check for a library file
   (whose name has been expanded with %s).  */
   (whose name has been expanded with %s).  */
 
 
static const char *
static const char *
if_exists_spec_function (int argc, const char **argv)
if_exists_spec_function (int argc, const char **argv)
{
{
  /* Must have only one argument.  */
  /* Must have only one argument.  */
  if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
  if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
    return argv[0];
    return argv[0];
 
 
  return NULL;
  return NULL;
}
}
 
 
/* if-exists-else built-in spec function.
/* if-exists-else built-in spec function.
 
 
   This is like if-exists, but takes an additional argument which
   This is like if-exists, but takes an additional argument which
   is returned if the first argument does not exist.  */
   is returned if the first argument does not exist.  */
 
 
static const char *
static const char *
if_exists_else_spec_function (int argc, const char **argv)
if_exists_else_spec_function (int argc, const char **argv)
{
{
  /* Must have exactly two arguments.  */
  /* Must have exactly two arguments.  */
  if (argc != 2)
  if (argc != 2)
    return NULL;
    return NULL;
 
 
  if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
  if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
    return argv[0];
    return argv[0];
 
 
  return argv[1];
  return argv[1];
}
}
 
 
/* replace-outfile built-in spec function.
/* replace-outfile built-in spec function.
 
 
   This looks for the first argument in the outfiles array's name and
   This looks for the first argument in the outfiles array's name and
   replaces it with the second argument.  */
   replaces it with the second argument.  */
 
 
static const char *
static const char *
replace_outfile_spec_function (int argc, const char **argv)
replace_outfile_spec_function (int argc, const char **argv)
{
{
  int i;
  int i;
  /* Must have exactly two arguments.  */
  /* Must have exactly two arguments.  */
  if (argc != 2)
  if (argc != 2)
    abort ();
    abort ();
 
 
  for (i = 0; i < n_infiles; i++)
  for (i = 0; i < n_infiles; i++)
    {
    {
      if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
      if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
        outfiles[i] = xstrdup (argv[1]);
        outfiles[i] = xstrdup (argv[1]);
    }
    }
  return NULL;
  return NULL;
}
}
 
 
/* Given two version numbers, compares the two numbers.
/* Given two version numbers, compares the two numbers.
   A version number must match the regular expression
   A version number must match the regular expression
   ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
   ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
*/
*/
static int
static int
compare_version_strings (const char *v1, const char *v2)
compare_version_strings (const char *v1, const char *v2)
{
{
  int rresult;
  int rresult;
  regex_t r;
  regex_t r;
 
 
  if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
  if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
               REG_EXTENDED | REG_NOSUB) != 0)
               REG_EXTENDED | REG_NOSUB) != 0)
    abort ();
    abort ();
  rresult = regexec (&r, v1, 0, NULL, 0);
  rresult = regexec (&r, v1, 0, NULL, 0);
  if (rresult == REG_NOMATCH)
  if (rresult == REG_NOMATCH)
    fatal ("invalid version number `%s'", v1);
    fatal ("invalid version number `%s'", v1);
  else if (rresult != 0)
  else if (rresult != 0)
    abort ();
    abort ();
  rresult = regexec (&r, v2, 0, NULL, 0);
  rresult = regexec (&r, v2, 0, NULL, 0);
  if (rresult == REG_NOMATCH)
  if (rresult == REG_NOMATCH)
    fatal ("invalid version number `%s'", v2);
    fatal ("invalid version number `%s'", v2);
  else if (rresult != 0)
  else if (rresult != 0)
    abort ();
    abort ();
 
 
  return strverscmp (v1, v2);
  return strverscmp (v1, v2);
}
}
 
 
 
 
/* version_compare built-in spec function.
/* version_compare built-in spec function.
 
 
   This takes an argument of the following form:
   This takes an argument of the following form:
 
 
   <comparison-op> <arg1> [<arg2>] <switch> <result>
   <comparison-op> <arg1> [<arg2>] <switch> <result>
 
 
   and produces "result" if the comparison evaluates to true,
   and produces "result" if the comparison evaluates to true,
   and nothing if it doesn't.
   and nothing if it doesn't.
 
 
   The supported <comparison-op> values are:
   The supported <comparison-op> values are:
 
 
   >=  true if switch is a later (or same) version than arg1
   >=  true if switch is a later (or same) version than arg1
   !>  opposite of >=
   !>  opposite of >=
   <   true if switch is an earlier version than arg1
   <   true if switch is an earlier version than arg1
   !<  opposite of <
   !<  opposite of <
   ><  true if switch is arg1 or later, and earlier than arg2
   ><  true if switch is arg1 or later, and earlier than arg2
   <>  true if switch is earlier than arg1 or is arg2 or later
   <>  true if switch is earlier than arg1 or is arg2 or later
 
 
   If the switch is not present, the condition is false unless
   If the switch is not present, the condition is false unless
   the first character of the <comparison-op> is '!'.
   the first character of the <comparison-op> is '!'.
 
 
   For example,
   For example,
   %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
   %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
   adds -lmx if -mmacosx-version-min=10.3.9 was passed.  */
   adds -lmx if -mmacosx-version-min=10.3.9 was passed.  */
 
 
static const char *
static const char *
version_compare_spec_function (int argc, const char **argv)
version_compare_spec_function (int argc, const char **argv)
{
{
  int comp1, comp2;
  int comp1, comp2;
  size_t switch_len;
  size_t switch_len;
  const char *switch_value = NULL;
  const char *switch_value = NULL;
  int nargs = 1, i;
  int nargs = 1, i;
  bool result;
  bool result;
 
 
  if (argc < 3)
  if (argc < 3)
    fatal ("too few arguments to %%:version-compare");
    fatal ("too few arguments to %%:version-compare");
  if (argv[0][0] == '\0')
  if (argv[0][0] == '\0')
    abort ();
    abort ();
  if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
  if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
    nargs = 2;
    nargs = 2;
  if (argc != nargs + 3)
  if (argc != nargs + 3)
    fatal ("too many arguments to %%:version-compare");
    fatal ("too many arguments to %%:version-compare");
 
 
  switch_len = strlen (argv[nargs + 1]);
  switch_len = strlen (argv[nargs + 1]);
  for (i = 0; i < n_switches; i++)
  for (i = 0; i < n_switches; i++)
    if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
    if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
        && check_live_switch (i, switch_len))
        && check_live_switch (i, switch_len))
      switch_value = switches[i].part1 + switch_len;
      switch_value = switches[i].part1 + switch_len;
 
 
  if (switch_value == NULL)
  if (switch_value == NULL)
    comp1 = comp2 = -1;
    comp1 = comp2 = -1;
  else
  else
    {
    {
      comp1 = compare_version_strings (switch_value, argv[1]);
      comp1 = compare_version_strings (switch_value, argv[1]);
      if (nargs == 2)
      if (nargs == 2)
        comp2 = compare_version_strings (switch_value, argv[2]);
        comp2 = compare_version_strings (switch_value, argv[2]);
      else
      else
        comp2 = -1;  /* This value unused.  */
        comp2 = -1;  /* This value unused.  */
    }
    }
 
 
  switch (argv[0][0] << 8 | argv[0][1])
  switch (argv[0][0] << 8 | argv[0][1])
    {
    {
    case '>' << 8 | '=':
    case '>' << 8 | '=':
      result = comp1 >= 0;
      result = comp1 >= 0;
      break;
      break;
    case '!' << 8 | '<':
    case '!' << 8 | '<':
      result = comp1 >= 0 || switch_value == NULL;
      result = comp1 >= 0 || switch_value == NULL;
      break;
      break;
    case '<' << 8:
    case '<' << 8:
      result = comp1 < 0;
      result = comp1 < 0;
      break;
      break;
    case '!' << 8 | '>':
    case '!' << 8 | '>':
      result = comp1 < 0 || switch_value == NULL;
      result = comp1 < 0 || switch_value == NULL;
      break;
      break;
    case '>' << 8 | '<':
    case '>' << 8 | '<':
      result = comp1 >= 0 && comp2 < 0;
      result = comp1 >= 0 && comp2 < 0;
      break;
      break;
    case '<' << 8 | '>':
    case '<' << 8 | '>':
      result = comp1 < 0 || comp2 >= 0;
      result = comp1 < 0 || comp2 >= 0;
      break;
      break;
 
 
    default:
    default:
      fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
      fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
    }
    }
  if (! result)
  if (! result)
    return NULL;
    return NULL;
 
 
  return argv[nargs + 2];
  return argv[nargs + 2];
}
}
 
 
/* %:include builtin spec function.  This differs from %include in that it
/* %:include builtin spec function.  This differs from %include in that it
   can be nested inside a spec, and thus be conditionalized.  It takes
   can be nested inside a spec, and thus be conditionalized.  It takes
   one argument, the filename, and looks for it in the startfile path.
   one argument, the filename, and looks for it in the startfile path.
   The result is always NULL, i.e. an empty expansion.  */
   The result is always NULL, i.e. an empty expansion.  */
 
 
static const char *
static const char *
include_spec_function (int argc, const char **argv)
include_spec_function (int argc, const char **argv)
{
{
  char *file;
  char *file;
 
 
  if (argc != 1)
  if (argc != 1)
    abort ();
    abort ();
 
 
  file = find_a_file (&startfile_prefixes, argv[0], R_OK, 0);
  file = find_a_file (&startfile_prefixes, argv[0], R_OK, 0);
  read_specs (file ? file : argv[0], FALSE);
  read_specs (file ? file : argv[0], FALSE);
 
 
  return NULL;
  return NULL;
}
}
 
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.