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/* CPP Library.

   Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,

   1999, 2000, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.

   Contributed by Per Bothner, 1994-95.

   Based on CCCP program by Paul Rubin, June 1986

   Adapted to ANSI C, Richard Stallman, Jan 1987

   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 3, 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; see the file COPYING3.  If not see

   <http://www.gnu.org/licenses/>.  */

#include "config.h"

#include "system.h"

#include "coretypes.h"

#include "tm.h"

#include "cppdefault.h"

#ifndef STANDARD_INCLUDE_DIR

#define STANDARD_INCLUDE_DIR "/usr/include"

#endif

#ifndef STANDARD_INCLUDE_COMPONENT

#define STANDARD_INCLUDE_COMPONENT 0

#endif

#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)

# undef LOCAL_INCLUDE_DIR

# undef SYSTEM_INCLUDE_DIR

# undef STANDARD_INCLUDE_DIR

#else

# undef CROSS_INCLUDE_DIR

#endif

const struct default_include cpp_include_defaults[]

#ifdef INCLUDE_DEFAULTS

= INCLUDE_DEFAULTS;

#else

= {

#ifdef GPLUSPLUS_INCLUDE_DIR

    /* Pick up GNU C++ generic include files.  */

    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, 0, 0 },

#endif

#ifdef GPLUSPLUS_TOOL_INCLUDE_DIR

    /* Pick up GNU C++ target-dependent include files.  */

    { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, 0, 1 },

#endif

#ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR

    /* Pick up GNU C++ backward and deprecated include files.  */

    { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, 0, 0 },

#endif

#ifdef LOCAL_INCLUDE_DIR

    /* /usr/local/include comes before the fixincluded header files.  */

    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },

#endif

#ifdef PREFIX_INCLUDE_DIR

    { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 },

#endif

#ifdef GCC_INCLUDE_DIR

    /* This is the dir for gcc's private headers.  */

    { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },

#endif

#ifdef FIXED_INCLUDE_DIR

    /* This is the dir for fixincludes.  */

    { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0,

      /* A multilib suffix needs adding if different multilibs use

         different headers.  */

#ifdef SYSROOT_HEADERS_SUFFIX_SPEC

      1

#else

#endif

    },

#endif

#ifdef CROSS_INCLUDE_DIR

    /* One place the target system's headers might be.  */

    { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },

#endif

#ifdef TOOL_INCLUDE_DIR

    /* Another place the target system's headers might be.  */

    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 },

#endif

#ifdef SYSTEM_INCLUDE_DIR

    /* Some systems have an extra dir of include files.  */

    { SYSTEM_INCLUDE_DIR, 0, 0, 0, 1, 0 },

#endif

#ifdef STANDARD_INCLUDE_DIR

    /* /usr/include comes dead last.  */

    { STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0, 1, 0 },

#endif

    { 0, 0, 0, 0, 0, 0 }

  };

#endif /* no INCLUDE_DEFAULTS */

#ifdef GCC_INCLUDE_DIR

const char cpp_GCC_INCLUDE_DIR[] = GCC_INCLUDE_DIR;

const size_t cpp_GCC_INCLUDE_DIR_len = sizeof GCC_INCLUDE_DIR - 8;

#else

const char cpp_GCC_INCLUDE_DIR[] = "";

const size_t cpp_GCC_INCLUDE_DIR_len = 0;

#endif

/* The configured prefix.  */

const char cpp_PREFIX[] = PREFIX;

const size_t cpp_PREFIX_len = sizeof PREFIX - 1;

const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX;

/* This value is set by cpp_relocated at runtime */

const char *gcc_exec_prefix;

/* Return true if the toolchain is relocated.  */

bool

cpp_relocated (void)

{

  static int relocated = -1;

  /* A relocated toolchain ignores standard include directories.  */

  if (relocated == -1)

    {

      /* Check if the toolchain was relocated?  */

      GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");

      if (gcc_exec_prefix)

       relocated = 1;

      else

       relocated = 0;

    }

  return relocated;

}