cppdefault.h

Go to the documentation of this file.

/* CPP Library.
   Copyright (C) 1986-2025 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/>.  */
 
#ifndef GCC_CPPDEFAULT_H
#define GCC_CPPDEFAULT_H
 
/* This is the default list of directories to search for include files.
   It may be overridden by the various -I and -ixxx options.
 
   #include "file" looks in the same directory as the current file,
   then this list.
   #include <file> just looks in this list.
 
   All these directories are treated as `system' include directories
   (they are not subject to pedantic warnings in some cases).  */
 
struct default_include
{
  const char *const fname;      /* The name of the directory.  */
  const char *const component;  /* The component containing the directory
                                   (see update_path in prefix.cc) */
  const char cplusplus;         /* When this is non-zero, we should only
                                   consider this if we're compiling C++.
                                   When the -stdlib option is configured, this
                                   may take values greater than 1 to indicate
                                   which C++ standard library should be
                                   used.  */
  const char cxx_aware;         /* Includes in this directory don't need to
                                   be wrapped in extern "C" when compiling
                                   C++.  */
  const char add_sysroot;       /* FNAME should be prefixed by
                                   cpp_SYSROOT.  */
  const char multilib;          /* FNAME should have appended
                                   - the multilib path specified with -imultilib
                                     when set to 1,
                                   - the multiarch path specified with
                                     -imultiarch, when set to 2.  */
};
 
extern const struct default_include cpp_include_defaults[];
extern const char cpp_GCC_INCLUDE_DIR[];
extern const size_t cpp_GCC_INCLUDE_DIR_len;
 
/* The configure-time prefix, i.e., the value supplied as the argument
   to --prefix=.  */
extern const char cpp_PREFIX[];
/* The length of the configure-time prefix.  */
extern const size_t cpp_PREFIX_len;
/* The configure-time execution prefix.  This is typically the lib/gcc
   subdirectory of cpp_PREFIX.  */
extern const char cpp_EXEC_PREFIX[];
/* The run-time execution prefix.  This is typically the lib/gcc
   subdirectory of the actual installation.  */
extern const char *gcc_exec_prefix;
 
/* Return true if the toolchain is relocated.  */
bool cpp_relocated (void);
 
#endif /* ! GCC_CPPDEFAULT_H */