gdb/gdbserver/aclocal.m4

   1 dnl aclocal.m4 generated automatically by aclocal 1.4-p4
   2
   3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
   4 dnl This file is free software; the Free Software Foundation
   5 dnl gives unlimited permission to copy and/or distribute it,
   6 dnl with or without modifications, as long as this notice is preserved.
   7
   8 dnl This program is distributed in the hope that it will be useful,
   9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  11 dnl PARTICULAR PURPOSE.
  12
  13
  14 # serial 1
  15
  16 # @defmac AC_PROG_CC_STDC
  17 # @maindex PROG_CC_STDC
  18 # @ovindex CC
  19 # If the C compiler in not in ANSI C mode by default, try to add an option
  20 # to output variable @code{CC} to make it so.  This macro tries various
  21 # options that select ANSI C on some system or another.  It considers the
  22 # compiler to be in ANSI C mode if it handles function prototypes correctly.
  23 #
  24 # If you use this macro, you should check after calling it whether the C
  25 # compiler has been set to accept ANSI C; if not, the shell variable
  26 # @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source
  27 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
  28 # program @code{ansi2knr}, which comes with Ghostscript.
  29 # @end defmac
  30
  31 AC_DEFUN(AM_PROG_CC_STDC,
  32 [AC_REQUIRE([AC_PROG_CC])
  33 AC_BEFORE([$0], [AC_C_INLINE])
  34 AC_BEFORE([$0], [AC_C_CONST])
  35 dnl Force this before AC_PROG_CPP.  Some cpp's, eg on HPUX, require
  36 dnl a magic option to avoid problems with ANSI preprocessor commands
  37 dnl like #elif.
  38 dnl FIXME: can't do this because then AC_AIX won't work due to a
  39 dnl circular dependency.
  40 dnl AC_BEFORE([$0], [AC_PROG_CPP])
  41 AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
  42 AC_CACHE_VAL(am_cv_prog_cc_stdc,
  43 [am_cv_prog_cc_stdc=no
  44 ac_save_CC="$CC"
  45 # Don't try gcc -ansi; that turns off useful extensions and
  46 # breaks some systems' header files.
  47 # AIX                   -qlanglvl=ansi
  48 # Ultrix and OSF/1      -std1
  49 # HP-UX                 -Aa -D_HPUX_SOURCE
  50 # SVR4                  -Xc -D__EXTENSIONS__
  51 for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
  52 do
  53   CC="$ac_save_CC $ac_arg"
  54   AC_TRY_COMPILE(
  55 [#include <stdarg.h>
  56 #include <stdio.h>
  57 #include <sys/types.h>
  58 #include <sys/stat.h>
  59 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
  60 struct buf { int x; };
  61 FILE * (*rcsopen) (struct buf *, struct stat *, int);
  62 static char *e (p, i)
  63      char **p;
  64      int i;
  65 {
  66   return p[i];
  67 }
  68 static char *f (char * (*g) (char **, int), char **p, ...)
  69 {
  70   char *s;
  71   va_list v;
  72   va_start (v,p);
  73   s = g (p, va_arg (v,int));
  74   va_end (v);
  75   return s;
  76 }
  77 int test (int i, double x);
  78 struct s1 {int (*f) (int a);};
  79 struct s2 {int (*f) (double a);};
  80 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
  81 int argc;
  82 char **argv;
  83 ], [
  84 return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
  85 ],
  86 [am_cv_prog_cc_stdc="$ac_arg"; break])
  87 done
  88 CC="$ac_save_CC"
  89 ])
  90 if test -z "$am_cv_prog_cc_stdc"; then
  91   AC_MSG_RESULT([none needed])
  92 else
  93   AC_MSG_RESULT($am_cv_prog_cc_stdc)
  94 fi
  95 case "x$am_cv_prog_cc_stdc" in
  96   x|xno) ;;
  97   *) CC="$CC $am_cv_prog_cc_stdc" ;;
  98 esac
  99 ])
 100