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b429a4ee GM |
1 | /* conf_post.h --- configure.ac includes this via AH_BOTTOM |
2 | ||
3 | Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012 | |
4 | Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software: you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation, either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | /* Commentary: | |
22 | ||
23 | Rather than writing this code directly in AH_BOTTOM, we include it | |
24 | via this file. This is so that it does not get processed by | |
25 | autoheader. Eg, any undefs here would otherwise be commented out. | |
26 | */ | |
27 | ||
28 | /* Code: */ | |
29 | ||
476b1b2d GM |
30 | /* Include any platform specific configuration file. */ |
31 | #ifdef config_opsysfile | |
32 | # include config_opsysfile | |
33 | #endif | |
34 | ||
35 | #ifndef WINDOWSNT | |
b429a4ee GM |
36 | /* On AIX 3 this must be included before any other include file. */ |
37 | #include <alloca.h> | |
38 | #if ! HAVE_ALLOCA | |
39 | # error "alloca not available on this machine" | |
40 | #endif | |
476b1b2d | 41 | #endif |
b429a4ee | 42 | |
b429a4ee GM |
43 | /* This silences a few compilation warnings on FreeBSD. */ |
44 | #ifdef BSD_SYSTEM_AHB | |
45 | #undef BSD_SYSTEM_AHB | |
46 | #undef BSD_SYSTEM | |
47 | #if __FreeBSD__ == 1 | |
48 | #define BSD_SYSTEM 199103 | |
49 | #elif __FreeBSD__ == 2 | |
50 | #define BSD_SYSTEM 199306 | |
51 | #elif __FreeBSD__ >= 3 | |
52 | #define BSD_SYSTEM 199506 | |
53 | #endif | |
54 | #endif | |
55 | ||
6a381852 GM |
56 | #ifdef DARWIN_OS |
57 | #ifdef emacs | |
58 | #define malloc unexec_malloc | |
59 | #define realloc unexec_realloc | |
60 | #define free unexec_free | |
61 | /* Don't use posix_memalign because it is not compatible with unexmacosx.c. */ | |
62 | #undef HAVE_POSIX_MEMALIGN | |
63 | #endif | |
64 | /* The following solves the problem that Emacs hangs when evaluating | |
65 | (make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile | |
66 | does not exist. Also, setsid is not allowed in the vfork child's | |
67 | context as of Darwin 9/Mac OS X 10.5. */ | |
68 | #undef HAVE_WORKING_VFORK | |
69 | #define vfork fork | |
70 | #endif /* DARWIN_OS */ | |
71 | ||
aac1c9ac GM |
72 | /* We have to go this route, rather than the old hpux9 approach of |
73 | renaming the functions via macros. The system's stdlib.h has fully | |
74 | prototyped declarations, which yields a conflicting definition of | |
75 | srand48; it tries to redeclare what was once srandom to be srand48. | |
76 | So we go with HAVE_LRAND48 being defined. */ | |
77 | #ifdef HPUX | |
78 | #undef srandom | |
79 | #undef random | |
80 | /* We try to avoid checking for random and rint on hpux in | |
81 | configure.ac, but some other configure test might check for them as | |
82 | a dependency, so to be safe we also undefine them here. | |
83 | */ | |
84 | #undef HAVE_RANDOM | |
85 | #undef HAVE_RINT | |
86 | #endif /* HPUX */ | |
87 | ||
bb2e3a6e GM |
88 | #ifdef IRIX6_5 |
89 | #ifdef emacs | |
90 | char *_getpty(); | |
91 | #endif | |
92 | ||
bb2e3a6e GM |
93 | #endif /* IRIX6_5 */ |
94 | ||
fe3cc771 GM |
95 | #ifdef MSDOS |
96 | #ifndef __DJGPP__ | |
97 | You lose; /* Emacs for DOS must be compiled with DJGPP */ | |
98 | #endif | |
99 | #define _NAIVE_DOS_REGS | |
100 | ||
101 | /* Start of gnulib-related stuff */ | |
102 | ||
103 | /* lib/ftoastr.c wants strtold, but DJGPP only has _strtold. DJGPP > | |
104 | 2.03 has it, but it also has _strtold as a stub that jumps to | |
105 | strtold, so use _strtold in all versions. */ | |
106 | #define strtold _strtold | |
107 | ||
108 | #if __DJGPP__ > 2 || __DJGPP_MINOR__ > 3 | |
109 | # define HAVE_LSTAT 1 | |
110 | #else | |
111 | # define lstat stat | |
112 | #endif | |
113 | /* End of gnulib-related stuff. */ | |
114 | ||
115 | /* Define one of these for easier conditionals. */ | |
116 | #ifdef HAVE_X_WINDOWS | |
117 | /* We need a little extra space, see ../../lisp/loadup.el and the | |
118 | commentary below, in the non-X branch. The 140KB number was | |
119 | measured on GNU/Linux and on MS-Windows. */ | |
120 | #define SYSTEM_PURESIZE_EXTRA (-170000+140000) | |
121 | #else | |
122 | /* We need a little extra space, see ../../lisp/loadup.el. | |
123 | As of 20091024, DOS-specific files use up 62KB of pure space. But | |
124 | overall, we end up wasting 130KB of pure space, because | |
125 | BASE_PURESIZE starts at 1.47MB, while we need only 1.3MB (including | |
126 | non-DOS specific files and load history; the latter is about 55K, | |
127 | but depends on the depth of the top-level Emacs directory in the | |
128 | directory tree). Given the unknown policy of different DPMI | |
129 | hosts regarding loading of untouched pages, I'm not going to risk | |
130 | enlarging Emacs footprint by another 100+ KBytes. */ | |
131 | #define SYSTEM_PURESIZE_EXTRA (-170000+65000) | |
132 | #endif | |
2e415bb7 | 133 | #endif /* MSDOS */ |
fe3cc771 | 134 | |
b429a4ee GM |
135 | /* Mac OS X / GNUstep need a bit more pure memory. Of the existing knobs, |
136 | SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems. */ | |
137 | #ifdef HAVE_NS | |
138 | #if defined NS_IMPL_GNUSTEP | |
139 | # define SYSTEM_PURESIZE_EXTRA 30000 | |
140 | #elif defined DARWIN_OS | |
141 | # define SYSTEM_PURESIZE_EXTRA 200000 | |
142 | #endif | |
143 | #endif | |
144 | ||
145 | #ifdef emacs /* Don't do this for lib-src. */ | |
146 | /* Tell regex.c to use a type compatible with Emacs. */ | |
147 | #define RE_TRANSLATE_TYPE Lisp_Object | |
e3ccf108 | 148 | #define RE_TRANSLATE(TBL, C) char_table_translate (TBL, C) |
b429a4ee GM |
149 | #ifdef make_number |
150 | /* If make_number is a macro, use it. */ | |
151 | #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0))) | |
152 | #else | |
153 | /* If make_number is a function, avoid it. */ | |
154 | #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0)) | |
155 | #endif | |
156 | #endif | |
157 | ||
158 | #include <string.h> | |
159 | #include <stdlib.h> | |
160 | ||
161 | #if __GNUC__ >= 3 /* On GCC 3.0 we might get a warning. */ | |
162 | #define NO_INLINE __attribute__((noinline)) | |
163 | #else | |
164 | #define NO_INLINE | |
165 | #endif | |
166 | ||
167 | #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) | |
168 | #define EXTERNALLY_VISIBLE __attribute__((externally_visible)) | |
169 | #else | |
170 | #define EXTERNALLY_VISIBLE | |
171 | #endif | |
172 | ||
173 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) | |
174 | # define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) | |
175 | #else | |
176 | # define ATTRIBUTE_FORMAT(spec) /* empty */ | |
177 | #endif | |
178 | ||
179 | #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) | |
180 | # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \ | |
181 | ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument)) | |
182 | #else | |
183 | # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \ | |
184 | ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument)) | |
185 | #endif | |
186 | ||
187 | #define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST | |
188 | ||
189 | /* Some versions of GNU/Linux define noinline in their headers. */ | |
190 | #ifdef noinline | |
191 | #undef noinline | |
192 | #endif | |
193 | ||
f162bcc3 PE |
194 | #define INLINE _GL_INLINE |
195 | #define EXTERN_INLINE _GL_EXTERN_INLINE | |
196 | #define INLINE_HEADER_BEGIN _GL_INLINE_HEADER_BEGIN | |
197 | #define INLINE_HEADER_END _GL_INLINE_HEADER_END | |
198 | ||
25e65510 GM |
199 | /* Use this to suppress gcc's `...may be used before initialized' warnings. */ |
200 | #ifdef lint | |
201 | /* Use CODE only if lint checking is in effect. */ | |
202 | # define IF_LINT(Code) Code | |
203 | /* Assume that the expression COND is true. This differs in intent | |
204 | from 'assert', as it is a message from the programmer to the compiler. */ | |
205 | # define lint_assume(cond) ((cond) ? (void) 0 : abort ()) | |
206 | #else | |
207 | # define IF_LINT(Code) /* empty */ | |
208 | # define lint_assume(cond) ((void) (0 && (cond))) | |
209 | #endif | |
210 | ||
b429a4ee | 211 | /* conf_post.h ends here */ |