PR other/54324
[official-gcc.git] / gcc / cppdefault.c
blob99c4c8814dfe32f715943c3a9de59d77ff4c9ca5
1 /* CPP Library.
2 Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2003, 2004, 2006, 2007, 2010, 2011
4 Free Software Foundation, Inc.
5 Contributed by Per Bothner, 1994-95.
6 Based on CCCP program by Paul Rubin, June 1986
7 Adapted to ANSI C, Richard Stallman, Jan 1987
9 This program is free software; you can redistribute it and/or modify it
10 under the terms of the GNU General Public License as published by the
11 Free Software Foundation; either version 3, or (at your option) any
12 later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 #include "config.h"
24 #include "system.h"
25 #include "coretypes.h"
26 #include "tm.h"
27 #include "cppdefault.h"
29 #ifndef NATIVE_SYSTEM_HEADER_COMPONENT
30 #define NATIVE_SYSTEM_HEADER_COMPONENT 0
31 #endif
33 #if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
34 # undef LOCAL_INCLUDE_DIR
35 # undef NATIVE_SYSTEM_HEADER_DIR
36 #else
37 # undef CROSS_INCLUDE_DIR
38 #endif
40 const struct default_include cpp_include_defaults[]
41 #ifdef INCLUDE_DEFAULTS
42 = INCLUDE_DEFAULTS;
43 #else
44 = {
45 #ifdef GPLUSPLUS_INCLUDE_DIR
46 /* Pick up GNU C++ generic include files. */
47 { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,
48 GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
49 #endif
50 #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
51 /* Pick up GNU C++ target-dependent include files. */
52 { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,
53 GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },
54 #endif
55 #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
56 /* Pick up GNU C++ backward and deprecated include files. */
57 { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,
58 GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
59 #endif
60 #ifdef GCC_INCLUDE_DIR
61 /* This is the dir for gcc's private headers. */
62 { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
63 #endif
64 #ifdef LOCAL_INCLUDE_DIR
65 /* /usr/local/include comes before the fixincluded header files. */
66 { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },
67 { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
68 #endif
69 #ifdef PREFIX_INCLUDE_DIR
70 { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 },
71 #endif
72 #ifdef FIXED_INCLUDE_DIR
73 /* This is the dir for fixincludes. */
74 { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0,
75 /* A multilib suffix needs adding if different multilibs use
76 different headers. */
77 #ifdef SYSROOT_HEADERS_SUFFIX_SPEC
79 #else
81 #endif
83 #endif
84 #ifdef CROSS_INCLUDE_DIR
85 /* One place the target system's headers might be. */
86 { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
87 #endif
88 #ifdef TOOL_INCLUDE_DIR
89 /* Another place the target system's headers might be. */
90 { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 },
91 #endif
92 #ifdef NATIVE_SYSTEM_HEADER_DIR
93 /* /usr/include comes dead last. */
94 { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 },
95 { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 },
96 #endif
97 { 0, 0, 0, 0, 0, 0 }
99 #endif /* no INCLUDE_DEFAULTS */
101 #ifdef GCC_INCLUDE_DIR
102 const char cpp_GCC_INCLUDE_DIR[] = GCC_INCLUDE_DIR;
103 const size_t cpp_GCC_INCLUDE_DIR_len = sizeof GCC_INCLUDE_DIR - 8;
104 #else
105 const char cpp_GCC_INCLUDE_DIR[] = "";
106 const size_t cpp_GCC_INCLUDE_DIR_len = 0;
107 #endif
109 /* The configured prefix. */
110 const char cpp_PREFIX[] = PREFIX;
111 const size_t cpp_PREFIX_len = sizeof PREFIX - 1;
112 const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX;
114 /* This value is set by cpp_relocated at runtime */
115 const char *gcc_exec_prefix;
117 /* Return true if the toolchain is relocated. */
118 bool
119 cpp_relocated (void)
121 static int relocated = -1;
123 /* A relocated toolchain ignores standard include directories. */
124 if (relocated == -1)
126 /* Check if the toolchain was relocated? */
127 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
128 if (gcc_exec_prefix)
129 relocated = 1;
130 else
131 relocated = 0;
134 return relocated;