view m4/intmax.m4 @ 40237:b1386ce84ff5

fatal-signal: Add function that lists the fatal signals. * lib/fatal-signal.h (get_fatal_signals): New declaration. * lib/fatal-signal.c (get_fatal_signals): New function.
author Bruno Haible <bruno@clisp.org>
date Sat, 16 Mar 2019 17:48:06 +0100
parents b06060465f09
children
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# intmax.m4 serial 6 (gettext-0.18.2)
dnl Copyright (C) 2002-2005, 2008-2019 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl From Bruno Haible.
dnl Test whether the system has the 'intmax_t' type, but don't attempt to
dnl find a replacement if it is lacking.

AC_DEFUN([gt_TYPE_INTMAX_T],
[
  AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
  AC_REQUIRE([gl_AC_HEADER_STDINT_H])
  AC_CACHE_CHECK([for intmax_t], [gt_cv_c_intmax_t],
    [AC_COMPILE_IFELSE(
       [AC_LANG_PROGRAM(
          [[
#include <stddef.h>
#include <stdlib.h>
#if HAVE_STDINT_H_WITH_UINTMAX
#include <stdint.h>
#endif
#if HAVE_INTTYPES_H_WITH_UINTMAX
#include <inttypes.h>
#endif
          ]],
          [[intmax_t x = -1;
            return !x;]])],
       [gt_cv_c_intmax_t=yes],
       [gt_cv_c_intmax_t=no])])
  if test $gt_cv_c_intmax_t = yes; then
    AC_DEFINE([HAVE_INTMAX_T], [1],
      [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.])
  fi
])