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comparison gcc/cppdefault.c @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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children f6334be47118
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-1:000000000000 0:a06113de4d67
1 /* CPP Library.
2 Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
4 Contributed by Per Bothner, 1994-95.
5 Based on CCCP program by Paul Rubin, June 1986
6 Adapted to ANSI C, Richard Stallman, Jan 1987
7
8 This program is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 3, or (at your option) any
11 later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
21
22 #include "config.h"
23 #include "system.h"
24 #include "coretypes.h"
25 #include "tm.h"
26 #include "cppdefault.h"
27
28 #ifndef STANDARD_INCLUDE_DIR
29 #define STANDARD_INCLUDE_DIR "/usr/include"
30 #endif
31
32 #ifndef STANDARD_INCLUDE_COMPONENT
33 #define STANDARD_INCLUDE_COMPONENT 0
34 #endif
35
36 #if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
37 # undef LOCAL_INCLUDE_DIR
38 # undef SYSTEM_INCLUDE_DIR
39 # undef STANDARD_INCLUDE_DIR
40 #else
41 # undef CROSS_INCLUDE_DIR
42 #endif
43
44 const struct default_include cpp_include_defaults[]
45 #ifdef INCLUDE_DEFAULTS
46 = INCLUDE_DEFAULTS;
47 #else
48 = {
49 #ifdef GPLUSPLUS_INCLUDE_DIR
50 /* Pick up GNU C++ generic include files. */
51 { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, 0, 0 },
52 #endif
53 #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
54 /* Pick up GNU C++ target-dependent include files. */
55 { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, 0, 1 },
56 #endif
57 #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
58 /* Pick up GNU C++ backward and deprecated include files. */
59 { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, 0, 0 },
60 #endif
61 #ifdef LOCAL_INCLUDE_DIR
62 /* /usr/local/include comes before the fixincluded header files. */
63 { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
64 #endif
65 #ifdef PREFIX_INCLUDE_DIR
66 { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 },
67 #endif
68 #ifdef GCC_INCLUDE_DIR
69 /* This is the dir for gcc's private headers. */
70 { GCC_INCLUDE_DIR, "GCC", 0, 0, 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
78 1
79 #else
80 0
81 #endif
82 },
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 SYSTEM_INCLUDE_DIR
93 /* Some systems have an extra dir of include files. */
94 { SYSTEM_INCLUDE_DIR, 0, 0, 0, 1, 0 },
95 #endif
96 #ifdef STANDARD_INCLUDE_DIR
97 /* /usr/include comes dead last. */
98 { STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0, 1, 0 },
99 #endif
100 { 0, 0, 0, 0, 0, 0 }
101 };
102 #endif /* no INCLUDE_DEFAULTS */
103
104 #ifdef GCC_INCLUDE_DIR
105 const char cpp_GCC_INCLUDE_DIR[] = GCC_INCLUDE_DIR;
106 const size_t cpp_GCC_INCLUDE_DIR_len = sizeof GCC_INCLUDE_DIR - 8;
107 #else
108 const char cpp_GCC_INCLUDE_DIR[] = "";
109 const size_t cpp_GCC_INCLUDE_DIR_len = 0;
110 #endif
111
112 /* The configured prefix. */
113 const char cpp_PREFIX[] = PREFIX;
114 const size_t cpp_PREFIX_len = sizeof PREFIX - 1;
115 const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX;
116
117 /* This value is set by cpp_relocated at runtime */
118 const char *gcc_exec_prefix;
119
120 /* Return true if the toolchain is relocated. */
121 bool
122 cpp_relocated (void)
123 {
124 static int relocated = -1;
125
126 /* A relocated toolchain ignores standard include directories. */
127 if (relocated == -1)
128 {
129 /* Check if the toolchain was relocated? */
130 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
131 if (gcc_exec_prefix)
132 relocated = 1;
133 else
134 relocated = 0;
135 }
136
137 return relocated;
138 }
139