gcc/cppdefault.h

   1 /* CPP Library.
   2    Copyright (C) 1986-2018 Free Software Foundation, Inc.
   3    Contributed by Per Bothner, 1994-95.
   4    Based on CCCP program by Paul Rubin, June 1986
   5    Adapted to ANSI C, Richard Stallman, Jan 1987
   6
   7    This program is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published by the
   9    Free Software Foundation; either version 3, or (at your option) any
  10    later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef GCC_CPPDEFAULT_H
  22 #define GCC_CPPDEFAULT_H
  23
  24 /* This is the default list of directories to search for include files.
  25    It may be overridden by the various -I and -ixxx options.
  26
  27    #include "file" looks in the same directory as the current file,
  28    then this list.
  29    #include <file> just looks in this list.
  30
  31    All these directories are treated as `system' include directories
  32    (they are not subject to pedantic warnings in some cases).  */
  33
  34 struct default_include
  35 {
  36   const char *const fname;      /* The name of the directory.  */
  37   const char *const component;  /* The component containing the directory
  38                                    (see update_path in prefix.c) */
  39   const char cplusplus;         /* Only look here if we're compiling C++.  */
  40   const char cxx_aware;         /* Includes in this directory don't need to
  41                                    be wrapped in extern "C" when compiling
  42                                    C++.  */
  43   const char add_sysroot;       /* FNAME should be prefixed by
  44                                    cpp_SYSROOT.  */
  45   const char multilib;          /* FNAME should have appended
  46                                    - the multilib path specified with -imultilib
  47                                      when set to 1,
  48                                    - the multiarch path specified with
  49                                      -imultiarch, when set to 2.  */
  50 };
  51
  52 extern const struct default_include cpp_include_defaults[];
  53 extern const char cpp_GCC_INCLUDE_DIR[];
  54 extern const size_t cpp_GCC_INCLUDE_DIR_len;
  55
  56 /* The configure-time prefix, i.e., the value supplied as the argument
  57    to --prefix=.  */
  58 extern const char cpp_PREFIX[];
  59 /* The length of the configure-time prefix.  */
  60 extern const size_t cpp_PREFIX_len;
  61 /* The configure-time execution prefix.  This is typically the lib/gcc
  62    subdirectory of cpp_PREFIX.  */
  63 extern const char cpp_EXEC_PREFIX[];
  64 /* The run-time execution prefix.  This is typically the lib/gcc
  65    subdirectory of the actual installation.  */
  66 extern const char *gcc_exec_prefix;
  67
  68 /* Return true if the toolchain is relocated.  */
  69 bool cpp_relocated (void);
  70
  71 #endif /* ! GCC_CPPDEFAULT_H */