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/* conf_post.h --- configure.ac includes this via AH_BOTTOM

Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
  Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */

/* Commentary:

   Rather than writing this code directly in AH_BOTTOM, we include it
   via this file.  This is so that it does not get processed by
   autoheader.  Eg, any undefs here would otherwise be commented out.
*/

/* Code: */

/* On AIX 3 this must be included before any other include file.  */
#include <alloca.h>
#if ! HAVE_ALLOCA
# error "alloca not available on this machine"
#endif

#ifdef SIGNAL_H_AHB
#undef SIGNAL_H_AHB
#include <signal.h>
#endif

/* This silences a few compilation warnings on FreeBSD.  */
#ifdef BSD_SYSTEM_AHB
#undef BSD_SYSTEM_AHB
#undef BSD_SYSTEM
#if __FreeBSD__ == 1
#define BSD_SYSTEM 199103
#elif __FreeBSD__ == 2
#define BSD_SYSTEM 199306
#elif __FreeBSD__ >= 3
#define BSD_SYSTEM 199506
#endif
#endif

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#ifdef DARWIN_OS
#ifdef emacs
#define malloc unexec_malloc
#define realloc unexec_realloc
#define free unexec_free
/* Don't use posix_memalign because it is not compatible with unexmacosx.c.  */
#undef HAVE_POSIX_MEMALIGN
#endif
/* The following solves the problem that Emacs hangs when evaluating
   (make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile
   does not exist.  Also, setsid is not allowed in the vfork child's
   context as of Darwin 9/Mac OS X 10.5.  */
#undef HAVE_WORKING_VFORK
#define vfork fork
#endif  /* DARWIN_OS */

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/* We have to go this route, rather than the old hpux9 approach of
   renaming the functions via macros.  The system's stdlib.h has fully
   prototyped declarations, which yields a conflicting definition of
   srand48; it tries to redeclare what was once srandom to be srand48.
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   So we go with HAVE_LRAND48 being defined.  */
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#ifdef HPUX
#undef srandom
#undef random
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/* We try to avoid checking for random and rint on hpux in
   configure.ac, but some other configure test might check for them as
   a dependency, so to be safe we also undefine them here.
 */
#undef HAVE_RANDOM
#undef HAVE_RINT
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#endif

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#ifdef IRIX6_5
#ifdef emacs
char *_getpty();
#endif

#undef SA_RESTART     /* not the same as defining BROKEN_SA_RESTART */
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#endif /* IRIX6_5 */

#ifdef USG5_4
/* Get FIONREAD from <sys/filio.h>.  Get <sys/ttold.h> to get struct tchars.
   But get <termio.h> first to make sure ttold.h doesn't interfere.  */
#include <sys/wait.h>

#ifdef emacs
#include <sys/filio.h>
#include <termio.h>
#include <sys/ttold.h>
#include <signal.h>
#include <sys/stream.h>
#include <sys/stropts.h>
#include <sys/termios.h>
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#endif
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#endif  /* USG5_4 */
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/* Include the os dependent file.  */
#ifdef config_opsysfile
# include config_opsysfile
#endif

/* Mac OS X / GNUstep need a bit more pure memory.  Of the existing knobs,
   SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.  */
#ifdef HAVE_NS
#if defined NS_IMPL_GNUSTEP
#  define SYSTEM_PURESIZE_EXTRA 30000
#elif defined DARWIN_OS
#  define SYSTEM_PURESIZE_EXTRA 200000
#endif
#endif

#ifdef emacs /* Don't do this for lib-src.  */
/* Tell regex.c to use a type compatible with Emacs.  */
#define RE_TRANSLATE_TYPE Lisp_Object
#define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
#ifdef make_number
/* If make_number is a macro, use it.  */
#define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
#else
/* If make_number is a function, avoid it.  */
#define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
#endif
#endif

#include <string.h>
#include <stdlib.h>

#if __GNUC__ >= 3  /* On GCC 3.0 we might get a warning.  */
#define NO_INLINE __attribute__((noinline))
#else
#define NO_INLINE
#endif

#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
#define EXTERNALLY_VISIBLE __attribute__((externally_visible))
#else
#define EXTERNALLY_VISIBLE
#endif

#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
# define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
#else
# define ATTRIBUTE_FORMAT(spec) /* empty */
#endif

#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
# define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
   ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
#else
# define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
   ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
#endif

#define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST

/* Some versions of GNU/Linux define noinline in their headers.  */
#ifdef noinline
#undef noinline
#endif

/* conf_post.h ends here */