| 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 | |
| 30 | /* Include any platform specific configuration file. */ |
| 31 | #ifdef config_opsysfile |
| 32 | # include config_opsysfile |
| 33 | #endif |
| 34 | |
| 35 | #ifndef WINDOWSNT |
| 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 |
| 41 | #endif |
| 42 | |
| 43 | #ifdef SIGNAL_H_AHB |
| 44 | #undef SIGNAL_H_AHB |
| 45 | #include <signal.h> |
| 46 | #endif |
| 47 | |
| 48 | /* This silences a few compilation warnings on FreeBSD. */ |
| 49 | #ifdef BSD_SYSTEM_AHB |
| 50 | #undef BSD_SYSTEM_AHB |
| 51 | #undef BSD_SYSTEM |
| 52 | #if __FreeBSD__ == 1 |
| 53 | #define BSD_SYSTEM 199103 |
| 54 | #elif __FreeBSD__ == 2 |
| 55 | #define BSD_SYSTEM 199306 |
| 56 | #elif __FreeBSD__ >= 3 |
| 57 | #define BSD_SYSTEM 199506 |
| 58 | #endif |
| 59 | #endif |
| 60 | |
| 61 | #ifdef DARWIN_OS |
| 62 | #ifdef emacs |
| 63 | #define malloc unexec_malloc |
| 64 | #define realloc unexec_realloc |
| 65 | #define free unexec_free |
| 66 | /* Don't use posix_memalign because it is not compatible with unexmacosx.c. */ |
| 67 | #undef HAVE_POSIX_MEMALIGN |
| 68 | #endif |
| 69 | /* The following solves the problem that Emacs hangs when evaluating |
| 70 | (make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile |
| 71 | does not exist. Also, setsid is not allowed in the vfork child's |
| 72 | context as of Darwin 9/Mac OS X 10.5. */ |
| 73 | #undef HAVE_WORKING_VFORK |
| 74 | #define vfork fork |
| 75 | #endif /* DARWIN_OS */ |
| 76 | |
| 77 | /* We have to go this route, rather than the old hpux9 approach of |
| 78 | renaming the functions via macros. The system's stdlib.h has fully |
| 79 | prototyped declarations, which yields a conflicting definition of |
| 80 | srand48; it tries to redeclare what was once srandom to be srand48. |
| 81 | So we go with HAVE_LRAND48 being defined. */ |
| 82 | #ifdef HPUX |
| 83 | #undef srandom |
| 84 | #undef random |
| 85 | /* We try to avoid checking for random and rint on hpux in |
| 86 | configure.ac, but some other configure test might check for them as |
| 87 | a dependency, so to be safe we also undefine them here. |
| 88 | */ |
| 89 | #undef HAVE_RANDOM |
| 90 | #undef HAVE_RINT |
| 91 | #endif /* HPUX */ |
| 92 | |
| 93 | #ifdef MSDOS |
| 94 | #ifndef __DJGPP__ |
| 95 | You lose; /* Emacs for DOS must be compiled with DJGPP */ |
| 96 | #endif |
| 97 | #define _NAIVE_DOS_REGS |
| 98 | |
| 99 | /* Start of gnulib-related stuff */ |
| 100 | |
| 101 | /* lib/ftoastr.c wants strtold, but DJGPP only has _strtold. DJGPP > |
| 102 | 2.03 has it, but it also has _strtold as a stub that jumps to |
| 103 | strtold, so use _strtold in all versions. */ |
| 104 | #define strtold _strtold |
| 105 | |
| 106 | #if __DJGPP__ > 2 || __DJGPP_MINOR__ > 3 |
| 107 | # define HAVE_LSTAT 1 |
| 108 | #else |
| 109 | # define lstat stat |
| 110 | #endif |
| 111 | /* End of gnulib-related stuff. */ |
| 112 | |
| 113 | /* Define one of these for easier conditionals. */ |
| 114 | #ifdef HAVE_X_WINDOWS |
| 115 | /* We need a little extra space, see ../../lisp/loadup.el and the |
| 116 | commentary below, in the non-X branch. The 140KB number was |
| 117 | measured on GNU/Linux and on MS-Windows. */ |
| 118 | #define SYSTEM_PURESIZE_EXTRA (-170000+140000) |
| 119 | #else |
| 120 | /* We need a little extra space, see ../../lisp/loadup.el. |
| 121 | As of 20091024, DOS-specific files use up 62KB of pure space. But |
| 122 | overall, we end up wasting 130KB of pure space, because |
| 123 | BASE_PURESIZE starts at 1.47MB, while we need only 1.3MB (including |
| 124 | non-DOS specific files and load history; the latter is about 55K, |
| 125 | but depends on the depth of the top-level Emacs directory in the |
| 126 | directory tree). Given the unknown policy of different DPMI |
| 127 | hosts regarding loading of untouched pages, I'm not going to risk |
| 128 | enlarging Emacs footprint by another 100+ KBytes. */ |
| 129 | #define SYSTEM_PURESIZE_EXTRA (-170000+65000) |
| 130 | #endif |
| 131 | #endif /* MSDOS */ |
| 132 | |
| 133 | #ifdef IRIX6_5 |
| 134 | #ifdef emacs |
| 135 | char *_getpty(); |
| 136 | #endif |
| 137 | |
| 138 | #undef SA_RESTART /* not the same as defining BROKEN_SA_RESTART */ |
| 139 | #endif /* IRIX6_5 */ |
| 140 | |
| 141 | #ifdef USG5_4 |
| 142 | /* Get FIONREAD from <sys/filio.h>. Get <sys/ttold.h> to get struct tchars. |
| 143 | But get <termio.h> first to make sure ttold.h doesn't interfere. */ |
| 144 | #include <sys/wait.h> |
| 145 | |
| 146 | #ifdef emacs |
| 147 | #include <sys/filio.h> |
| 148 | #include <termio.h> |
| 149 | #include <sys/ttold.h> |
| 150 | #include <signal.h> |
| 151 | #include <sys/stream.h> |
| 152 | #include <sys/stropts.h> |
| 153 | #include <sys/termios.h> |
| 154 | #endif |
| 155 | #endif /* USG5_4 */ |
| 156 | |
| 157 | /* Mac OS X / GNUstep need a bit more pure memory. Of the existing knobs, |
| 158 | SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems. */ |
| 159 | #ifdef HAVE_NS |
| 160 | #if defined NS_IMPL_GNUSTEP |
| 161 | # define SYSTEM_PURESIZE_EXTRA 30000 |
| 162 | #elif defined DARWIN_OS |
| 163 | # define SYSTEM_PURESIZE_EXTRA 200000 |
| 164 | #endif |
| 165 | #endif |
| 166 | |
| 167 | #ifdef emacs /* Don't do this for lib-src. */ |
| 168 | /* Tell regex.c to use a type compatible with Emacs. */ |
| 169 | #define RE_TRANSLATE_TYPE Lisp_Object |
| 170 | #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C) |
| 171 | #ifdef make_number |
| 172 | /* If make_number is a macro, use it. */ |
| 173 | #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0))) |
| 174 | #else |
| 175 | /* If make_number is a function, avoid it. */ |
| 176 | #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0)) |
| 177 | #endif |
| 178 | #endif |
| 179 | |
| 180 | #include <string.h> |
| 181 | #include <stdlib.h> |
| 182 | |
| 183 | #if __GNUC__ >= 3 /* On GCC 3.0 we might get a warning. */ |
| 184 | #define NO_INLINE __attribute__((noinline)) |
| 185 | #else |
| 186 | #define NO_INLINE |
| 187 | #endif |
| 188 | |
| 189 | #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) |
| 190 | #define EXTERNALLY_VISIBLE __attribute__((externally_visible)) |
| 191 | #else |
| 192 | #define EXTERNALLY_VISIBLE |
| 193 | #endif |
| 194 | |
| 195 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) |
| 196 | # define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) |
| 197 | #else |
| 198 | # define ATTRIBUTE_FORMAT(spec) /* empty */ |
| 199 | #endif |
| 200 | |
| 201 | #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) |
| 202 | # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \ |
| 203 | ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument)) |
| 204 | #else |
| 205 | # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \ |
| 206 | ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument)) |
| 207 | #endif |
| 208 | |
| 209 | #define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST |
| 210 | |
| 211 | /* Some versions of GNU/Linux define noinline in their headers. */ |
| 212 | #ifdef noinline |
| 213 | #undef noinline |
| 214 | #endif |
| 215 | |
| 216 | /* conf_post.h ends here */ |