src/conf_post.h

   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
  92
  93 #ifdef IRIX6_5
  94 #ifdef emacs
  95 char *_getpty();
  96 #endif
  97
  98 #undef SA_RESTART     /* not the same as defining BROKEN_SA_RESTART */
  99 #endif /* IRIX6_5 */
 100
 101 #ifdef USG5_4
 102 /* Get FIONREAD from <sys/filio.h>.  Get <sys/ttold.h> to get struct tchars.
 103    But get <termio.h> first to make sure ttold.h doesn't interfere.  */
 104 #include <sys/wait.h>
 105
 106 #ifdef emacs
 107 #include <sys/filio.h>
 108 #include <termio.h>
 109 #include <sys/ttold.h>
 110 #include <signal.h>
 111 #include <sys/stream.h>
 112 #include <sys/stropts.h>
 113 #include <sys/termios.h>
 114 #endif
 115 #endif  /* USG5_4 */
 116
 117 /* Mac OS X / GNUstep need a bit more pure memory.  Of the existing knobs,
 118    SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.  */
 119 #ifdef HAVE_NS
 120 #if defined NS_IMPL_GNUSTEP
 121 #  define SYSTEM_PURESIZE_EXTRA 30000
 122 #elif defined DARWIN_OS
 123 #  define SYSTEM_PURESIZE_EXTRA 200000
 124 #endif
 125 #endif
 126
 127 #ifdef emacs /* Don't do this for lib-src.  */
 128 /* Tell regex.c to use a type compatible with Emacs.  */
 129 #define RE_TRANSLATE_TYPE Lisp_Object
 130 #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
 131 #ifdef make_number
 132 /* If make_number is a macro, use it.  */
 133 #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
 134 #else
 135 /* If make_number is a function, avoid it.  */
 136 #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
 137 #endif
 138 #endif
 139
 140 #include <string.h>
 141 #include <stdlib.h>
 142
 143 #if __GNUC__ >= 3  /* On GCC 3.0 we might get a warning.  */
 144 #define NO_INLINE __attribute__((noinline))
 145 #else
 146 #define NO_INLINE
 147 #endif
 148
 149 #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
 150 #define EXTERNALLY_VISIBLE __attribute__((externally_visible))
 151 #else
 152 #define EXTERNALLY_VISIBLE
 153 #endif
 154
 155 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
 156 # define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
 157 #else
 158 # define ATTRIBUTE_FORMAT(spec) /* empty */
 159 #endif
 160
 161 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
 162 # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
 163    ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
 164 #else
 165 # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
 166    ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
 167 #endif
 168
 169 #define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST
 170
 171 /* Some versions of GNU/Linux define noinline in their headers.  */
 172 #ifdef noinline
 173 #undef noinline
 174 #endif
 175
 176 /* conf_post.h ends here */