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 /* On AIX 3 this must be included before any other include file.  */
  31 #include <alloca.h>
  32 #if ! HAVE_ALLOCA
  33 # error "alloca not available on this machine"
  34 #endif
  35
  36 #ifdef SIGNAL_H_AHB
  37 #undef SIGNAL_H_AHB
  38 #include <signal.h>
  39 #endif
  40
  41 /* This silences a few compilation warnings on FreeBSD.  */
  42 #ifdef BSD_SYSTEM_AHB
  43 #undef BSD_SYSTEM_AHB
  44 #undef BSD_SYSTEM
  45 #if __FreeBSD__ == 1
  46 #define BSD_SYSTEM 199103
  47 #elif __FreeBSD__ == 2
  48 #define BSD_SYSTEM 199306
  49 #elif __FreeBSD__ >= 3
  50 #define BSD_SYSTEM 199506
  51 #endif
  52 #endif
  53
  54 #ifdef DARWIN_OS
  55 #ifdef emacs
  56 #define malloc unexec_malloc
  57 #define realloc unexec_realloc
  58 #define free unexec_free
  59 /* Don't use posix_memalign because it is not compatible with unexmacosx.c.  */
  60 #undef HAVE_POSIX_MEMALIGN
  61 #endif
  62 /* The following solves the problem that Emacs hangs when evaluating
  63    (make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile
  64    does not exist.  Also, setsid is not allowed in the vfork child's
  65    context as of Darwin 9/Mac OS X 10.5.  */
  66 #undef HAVE_WORKING_VFORK
  67 #define vfork fork
  68 #endif  /* DARWIN_OS */
  69
  70 /* We have to go this route, rather than the old hpux9 approach of
  71    renaming the functions via macros.  The system's stdlib.h has fully
  72    prototyped declarations, which yields a conflicting definition of
  73    srand48; it tries to redeclare what was once srandom to be srand48.
  74    So we go with HAVE_LRAND48 being defined.  Note we also undef
  75    HAVE_RANDOM via configure.  */
  76 #ifdef HPUX
  77 #undef srandom
  78 #undef random
  79 #endif
  80
  81 /* Define AMPERSAND_FULL_NAME if you use the convention
  82    that & in the full name stands for the login id.  */
  83 /* Turned on June 1996 supposing nobody will mind it.  */
  84 #define AMPERSAND_FULL_NAME
  85
  86 /* `subprocesses' should be defined if you want to
  87    have code for asynchronous subprocesses
  88    (as used in M-x compile and M-x shell).
  89    Only MSDOS does not support this (it overrides
  90    this in its config_opsysfile below).  */
  91
  92 #define subprocesses
  93
  94 /* Include the os dependent file.  */
  95 #ifdef config_opsysfile
  96 # include config_opsysfile
  97 #endif
  98
  99 /* Mac OS X / GNUstep need a bit more pure memory.  Of the existing knobs,
 100    SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.  */
 101 #ifdef HAVE_NS
 102 #if defined NS_IMPL_GNUSTEP
 103 #  define SYSTEM_PURESIZE_EXTRA 30000
 104 #elif defined DARWIN_OS
 105 #  define SYSTEM_PURESIZE_EXTRA 200000
 106 #endif
 107 #endif
 108
 109 #ifdef emacs /* Don't do this for lib-src.  */
 110 /* Tell regex.c to use a type compatible with Emacs.  */
 111 #define RE_TRANSLATE_TYPE Lisp_Object
 112 #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
 113 #ifdef make_number
 114 /* If make_number is a macro, use it.  */
 115 #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
 116 #else
 117 /* If make_number is a function, avoid it.  */
 118 #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
 119 #endif
 120 #endif
 121
 122 #include <string.h>
 123 #include <stdlib.h>
 124
 125 #if __GNUC__ >= 3  /* On GCC 3.0 we might get a warning.  */
 126 #define NO_INLINE __attribute__((noinline))
 127 #else
 128 #define NO_INLINE
 129 #endif
 130
 131 #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
 132 #define EXTERNALLY_VISIBLE __attribute__((externally_visible))
 133 #else
 134 #define EXTERNALLY_VISIBLE
 135 #endif
 136
 137 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
 138 # define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
 139 #else
 140 # define ATTRIBUTE_FORMAT(spec) /* empty */
 141 #endif
 142
 143 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
 144 # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
 145    ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
 146 #else
 147 # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
 148    ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
 149 #endif
 150
 151 #define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST
 152
 153 /* Some versions of GNU/Linux define noinline in their headers.  */
 154 #ifdef noinline
 155 #undef noinline
 156 #endif
 157
 158 /* conf_post.h ends here */