Subversion Repositories openrisc_2011-10-31

dnl written by Rob Savoye <rob@cygnus.com> for Cygnus Support

dnl major rewriting for Tcl 7.5 by Don Libes <libes@nist.gov>

dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.

sinclude(../bfd/bfd.m4)

dnl This gets the standard macros

sinclude(../config/acinclude.m4)

dnl This gets autoconf bugfixes

sinclude(../config/override.m4)

sinclude(../config/gettext-sister.m4)

dnl For AC_LIB_HAVE_LINKFLAGS.

sinclude(../config/lib-ld.m4)

sinclude(../config/lib-prefix.m4)

sinclude(../config/lib-link.m4)

dnl For ACX_PKGVERSION and ACX_BUGURL.

sinclude(../config/acx.m4)

dnl for TCL definitions

sinclude(../config/tcl.m4)

dnl For dependency tracking macros.

sinclude([../config/depstand.m4])

dnl For AM_LC_MESSAGES

sinclude([../config/lcmessage.m4])

dnl For AM_LANGINFO_CODESET.

sinclude([../config/codeset.m4])

sinclude([../config/zlib.m4])

#

# Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This

# makes configure think it's cross compiling. If --target wasn't used, then

# we can't configure, so something is wrong. We don't use the cache

# here cause if somebody fixes their compiler install, we want this to work.

AC_DEFUN([CY_AC_C_WORKS],

[# If we cannot compile and link a trivial program, we can't expect anything to work

AC_MSG_CHECKING(whether the compiler ($CC) actually works)

AC_TRY_COMPILE(, [/* don't need anything here */],

        c_compiles=yes, c_compiles=no)

AC_TRY_LINK(, [/* don't need anything here */],

        c_links=yes, c_links=no)

if test x"${c_compiles}" = x"no" ; then

  AC_MSG_ERROR(the native compiler is broken and won't compile.)

fi

if test x"${c_links}" = x"no" ; then

  AC_MSG_ERROR(the native compiler is broken and won't link.)

fi

AC_MSG_RESULT(yes)

])

## ----------------------------------------- ##

## ANSIfy the C compiler whenever possible.  ##

## From Franc,ois Pinard                     ##

## ----------------------------------------- ##

# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2008, 2009

  Free Software Foundation, Inc.

# This program 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 Software Foundation; either version 2, or (at your option)

# any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor,

# Boston, MA 02110-1301, USA.

# serial 1

# @defmac AC_PROG_CC_STDC

# @maindex PROG_CC_STDC

# @ovindex CC

# If the C compiler in not in ANSI C mode by default, try to add an option

# to output variable @code{CC} to make it so.  This macro tries various

# options that select ANSI C on some system or another.  It considers the

# compiler to be in ANSI C mode if it handles function prototypes correctly.

#

# If you use this macro, you should check after calling it whether the C

# compiler has been set to accept ANSI C; if not, the shell variable

# @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source

# code in ANSI C, you can make an un-ANSIfied copy of it by using the

# program @code{ansi2knr}, which comes with Ghostscript.

# @end defmac

AC_DEFUN([AM_PROG_CC_STDC],

[AC_REQUIRE([AC_PROG_CC])

AC_BEFORE([$0], [AC_C_INLINE])

AC_BEFORE([$0], [AC_C_CONST])

dnl Force this before AC_PROG_CPP.  Some cpp's, eg on HPUX, require

dnl a magic option to avoid problems with ANSI preprocessor commands

dnl like #elif.

dnl FIXME: can't do this because then AC_AIX won't work due to a

dnl circular dependency.

dnl AC_BEFORE([$0], [AC_PROG_CPP])

AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])

AC_CACHE_VAL(am_cv_prog_cc_stdc,

[am_cv_prog_cc_stdc=no

ac_save_CC="$CC"

# Don't try gcc -ansi; that turns off useful extensions and

# breaks some systems' header files.

# AIX                   -qlanglvl=ansi

# Ultrix and OSF/1      -std1

# HP-UX 10.20 and later -Ae

# HP-UX older versions  -Aa -D_HPUX_SOURCE

# SVR4                  -Xc -D__EXTENSIONS__

for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"

do

  CC="$ac_save_CC $ac_arg"

  AC_TRY_COMPILE(

[#include <stdarg.h>

#include <stdio.h>

#include <sys/types.h>

#include <sys/stat.h>

/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */

struct buf { int x; };

FILE * (*rcsopen) (struct buf *, struct stat *, int);

static char *e (p, i)

     char **p;

     int i;

{

  return p[i];

}

static char *f (char * (*g) (char **, int), char **p, ...)

{

  char *s;

  va_list v;

  va_start (v,p);

  s = g (p, va_arg (v,int));

  va_end (v);

  return s;

}

int test (int i, double x);

struct s1 {int (*f) (int a);};

struct s2 {int (*f) (double a);};

int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);

int argc;

char **argv;

], [

return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];

],

[am_cv_prog_cc_stdc="$ac_arg"; break])

done

CC="$ac_save_CC"

])

if test -z "$am_cv_prog_cc_stdc"; then

  AC_MSG_RESULT([none needed])

else

  AC_MSG_RESULT([$am_cv_prog_cc_stdc])

fi

case "x$am_cv_prog_cc_stdc" in

  x|xno) ;;

  *) CC="$CC $am_cv_prog_cc_stdc" ;;

esac

])

dnl Originally from Bruno Haible, but with some modifications

dnl for the GDB project.

AC_DEFUN([AM_ICONV],

[

  dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and

  dnl those with the standalone portable GNU libiconv installed).

  AC_ARG_WITH([libiconv-prefix],

    AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [

    for dir in `echo "$withval" | tr : ' '`; do

      if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi

      if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi

    done

   ])

  BUILD_LIBICONV_LIBDIRS="../libiconv/lib/.libs ../libiconv/lib/_libs"

  BUILD_LIBICONV_INCLUDE="-I../libiconv/include"

  AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [

    am_cv_func_iconv="no, consider installing GNU libiconv"

    am_cv_lib_iconv=no

    am_cv_use_build_libiconv=no

    am_cv_build_libiconv_path=

    # If libiconv is part of the build tree, then try using it over

    # any system iconv.

    if test -d ../libiconv; then

      for lib_dir in $BUILD_LIBICONV_LIBDIRS; do

        am_save_LIBS="$LIBS"

        am_save_CPPFLAGS="$CPPFLAGS"

        LIBS="$LIBS $lib_dir/libiconv.a"

        CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"

        AC_TRY_LINK([#include <stdlib.h>

#include <iconv.h>],

          [iconv_t cd = iconv_open("","");

           iconv(cd,NULL,NULL,NULL,NULL);

           iconv_close(cd);],

          am_cv_use_build_libiconv=yes

          am_cv_build_libiconv_path=$lib_dir/libiconv.a

          am_cv_lib_iconv=yes

          am_cv_func_iconv=yes)

        LIBS="$am_save_LIBS"

        CPPFLAGS="$am_save_CPPFLAGS"

        if test "$am_cv_use_build_libiconv" = "yes"; then

          break

        fi

      done

    fi

    # Next, try to find iconv in libc.

    if test "$am_cv_func_iconv" != yes; then

      AC_TRY_LINK([#include <stdlib.h>

#include <iconv.h>],

        [iconv_t cd = iconv_open("","");

         iconv(cd,NULL,NULL,NULL,NULL);

         iconv_close(cd);],

        am_cv_func_iconv=yes)

    fi

    # If iconv was not in libc, try -liconv.  In this case, arrange to

    # look in the libiconv prefix, if it was specified by the user.

    if test "$am_cv_func_iconv" != yes; then

      am_save_CPPFLAGS="$CPPFLAGS"

      am_save_LIBS="$LIBS"

      if test -n "$LIBICONV_INCLUDE"; then

        CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"

        LIBS="$LIBS $LIBICONV_LIBDIR"

      fi

      LIBS="$LIBS -liconv"

      AC_TRY_LINK([#include <stdlib.h>

#include <iconv.h>],

        [iconv_t cd = iconv_open("","");

         iconv(cd,NULL,NULL,NULL,NULL);

         iconv_close(cd);],

        am_cv_lib_iconv=yes

        am_cv_func_iconv=yes)

      LIBS="$am_save_LIBS"

      CPPFLAGS="$am_save_CPPFLAGS"

    fi

  ])

  # Set the various flags based on the cache variables.  We can't rely

  # on the flags to remain set from the above code, due to caching.

  LIBICONV=

  if test "$am_cv_lib_iconv" = yes; then

    LIBICONV="-liconv"

  else

    LIBICONV_LIBDIR=

    LIBICONV_INCLUDE=

  fi

  if test "$am_cv_use_build_libiconv" = yes; then

    LIBICONV="$am_cv_build_libiconv_path"

    LIBICONV_LIBDIR=""

    LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"

  fi

  CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"

  LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"

  if test "$am_cv_func_iconv" = yes; then

    AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])

    AC_MSG_CHECKING([for iconv declaration])

    AC_CACHE_VAL(am_cv_proto_iconv, [

      AC_TRY_COMPILE([

#include <stdlib.h>

#include <iconv.h>

extern

#ifdef __cplusplus

"C"

#endif

#if defined(__STDC__) || defined(__cplusplus)

size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);

#else

size_t iconv();

#endif

], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")

      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])

    am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`

    AC_MSG_RESULT([$]{ac_t:-

         }[$]am_cv_proto_iconv)

    AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,

      [Define as const if the declaration of iconv() needs const.])

  fi

])

dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva

dnl Version 1.3 (2001/03/02)

dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html

AC_DEFUN([AC_DEFINE_DIR], [

  test "x$prefix" = xNONE && prefix="$ac_default_prefix"

  test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

  ac_define_dir=`eval echo [$]$2`

  ac_define_dir=`eval echo [$]ac_define_dir`

  ifelse($3, ,

    AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),

    AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))

])

dnl See whether we need a declaration for a function.

dnl The result is highly dependent on the INCLUDES passed in, so make sure

dnl to use a different cache variable name in this macro if it is invoked

dnl in a different context somewhere else.

dnl gcc_AC_CHECK_DECL(SYMBOL,

dnl     [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])

AC_DEFUN([gcc_AC_CHECK_DECL],

[AC_MSG_CHECKING([whether $1 is declared])

AC_CACHE_VAL(gcc_cv_have_decl_$1,

[AC_TRY_COMPILE([$4],

[#ifndef $1

char *(*pfn) = (char *(*)) $1 ;

#endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])

if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then

  AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])

else

  AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])

fi

])dnl

dnl Check multiple functions to see whether each needs a declaration.

dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.

dnl gcc_AC_CHECK_DECLS(SYMBOLS,

dnl     [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])

AC_DEFUN([gcc_AC_CHECK_DECLS],

[for ac_func in $1

do

changequote(, )dnl

  ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`

changequote([, ])dnl

gcc_AC_CHECK_DECL($ac_func,

  [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],

  [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],

dnl It is possible that the include files passed in here are local headers

dnl which supply a backup declaration for the relevant prototype based on

dnl the definition of (or lack of) the HAVE_DECL_ macro.  If so, this test

dnl will always return success.  E.g. see libiberty.h's handling of

dnl `basename'.  To avoid this, we define the relevant HAVE_DECL_ macro to

dnl 1 so that any local headers used do not provide their own prototype

dnl during this test.

#undef $ac_tr_decl

#define $ac_tr_decl 1

  $4

)

done

dnl Automatically generate config.h entries via autoheader.

if test x = y ; then

  patsubst(translit([$1], [a-z], [A-Z]), [\w+],

    [AC_DEFINE([HAVE_DECL_\&], 1,

      [Define to 1 if we found this declaration otherwise define to 0.])])dnl

fi

])

dnl Find the location of the private Tcl headers

dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic

dnl When Tcl is in the build tree, this is not needed.

dnl

dnl Note: you must use first use SC_LOAD_TCLCONFIG!

AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [

  AC_MSG_CHECKING([for Tcl private headers])

  private_dir=""

  dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`

  if test -f ${dir}/tclInt.h ; then

    private_dir=${dir}

  fi

  if test x"${private_dir}" = x; then

    AC_ERROR(could not find private Tcl headers)

  else

    TCL_PRIVATE_INCLUDE="-I${private_dir}"

    AC_MSG_RESULT(${private_dir})

  fi

])

dnl Find the location of the private Tk headers

dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic

dnl When Tk is in the build tree, this not needed.

dnl

dnl Note: you must first use SC_LOAD_TKCONFIG

AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [

  AC_MSG_CHECKING([for Tk private headers])

  private_dir=""

  dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`

  if test -f ${dir}/tkInt.h; then

    private_dir=${dir}

  fi

  if test x"${private_dir}" = x; then

    AC_ERROR(could not find Tk private headers)

  else

    TK_PRIVATE_INCLUDE="-I${private_dir}"

    AC_MSG_RESULT(${private_dir})

  fi

])

dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])

dnl For use in processing directory values for --with-foo.

dnl If the path in SHELL_VARIABLE is relative to the prefix, then the

dnl result is relocatable, then this will define the C macro

dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.

AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [

  if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then

     if test "x$prefix" = xNONE; then

        test_prefix=/usr/local

     else

        test_prefix=$prefix

     fi

  else

     test_prefix=$exec_prefix

  fi

  value=0

  case [$3] in

     "${test_prefix}"|"${test_prefix}/"*|\

        '${exec_prefix}'|'${exec_prefix}/'*)

     value=1

     ;;

  esac

  AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])

])

dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])

dnl Add a new --with option that defines a directory.

dnl The result is stored in VARIABLE.  AC_DEFINE_DIR is called

dnl on this variable, as is AC_SUBST.

dnl ARG-NAME is the base name of the argument (without "--with").

dnl HELP is the help text to use.

dnl If the user's choice is relative to the prefix, then the

dnl result is relocatable, then this will define the C macro

dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.

dnl DEFAULT is the default value, which is used if the user

dnl does not specify the argument.

AC_DEFUN([GDB_AC_WITH_DIR], [

  AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [

    [$1]=$withval], [[$1]=[$4]])

  AC_DEFINE_DIR([$1], [$1], [$3])

  AC_SUBST([$1])

  GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})

  ])