popt/system.h

   1 #ifdef HAVE_CONFIG_H
   2 #include "config.h"
   3 #endif
   4
   5 #include <ctype.h>
   6 #include <errno.h>
   7 #include <fcntl.h>
   8 #include <limits.h>
   9
  10 #if HAVE_MCHECK_H
  11 #include <mcheck.h>
  12 #endif
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17
  18 #if HAVE_UNISTD_H
  19 #include <unistd.h>
  20 #endif
  21
  22 #if !defined(__GNUC__) || defined(APPLE)
  23 /* Apparently the OS X port of gcc gags on __attribute__.
  24  *
  25  * <http://www.opensource.apple.com/bugs/X/gcc/2512150.html> */
  26 #define __attribute__(x)
  27
  28 #endif
  29
  30 #ifdef __NeXT
  31 /* access macros are not declared in non posix mode in unistd.h -
  32  don't try to use posix on NeXTstep 3.3 ! */
  33 #include <libc.h>
  34 #endif
  35
  36 #if defined(__LCLINT__)
  37 /*@-declundef -incondefs -redecl@*/ /* LCL: missing annotation */
  38 /*@only@*/ void * alloca (size_t __size)
  39         /*@ensures MaxSet(result) == (__size - 1) @*/
  40         /*@*/;
  41 /*@=declundef =incondefs =redecl@*/
  42 #endif
  43
  44 /* AIX requires this to be the first thing in the file.  */
  45 #ifndef __GNUC__
  46 # if HAVE_ALLOCA_H
  47 #  include <alloca.h>
  48 # else
  49 #  ifdef _AIX
  50 #pragma alloca
  51 #  else
  52 #   if HAVE_ALLOCA
  53 #    ifndef alloca /* predefined by HP cc +Olibcalls */
  54 char *alloca ();
  55 #    endif
  56 #   else
  57 #    ifdef alloca
  58 #     undef alloca
  59 #    endif
  60 #    define alloca(sz) malloc(sz) /* Kludge this for now */
  61 #   endif
  62 #  endif
  63 # endif
  64 #elif defined(__GNUC__) && defined(__STRICT_ANSI__)
  65 #define alloca __builtin_alloca
  66 #endif
  67
  68 /*@-redecl -redef@*/
  69 /*@mayexit@*/ /*@only@*/ char * xstrdup (const char *str)
  70         /*@*/;
  71 /*@=redecl =redef@*/
  72
  73 #if HAVE_MCHECK_H && defined(__GNUC__)
  74 #define vmefail()       (fprintf(stderr, "virtual memory exhausted.\n"), exit(EXIT_FAILURE), NULL)
  75 #define xstrdup(_str)   (strcpy((malloc(strlen(_str)+1) ? : vmefail()), (_str)))
  76 #else
  77 #define xstrdup(_str)   strdup(_str)
  78 #endif  /* HAVE_MCHECK_H && defined(__GNUC__) */
  79
  80 #define UNUSED(x) x __attribute__((__unused__))
  81
  82 #include "popt.h"