1# intmax.m4 serial 2 2dnl Copyright (C) 2002-2004 Free Software Foundation, Inc. 3dnl This file is free software, distributed under the terms of the GNU 4dnl General Public License. As a special exception to the GNU General 5dnl Public License, this file may be distributed as part of a program 6dnl that contains a configuration script generated by Autoconf, under 7dnl the same distribution terms as the rest of that program. 8 9dnl From Bruno Haible. 10dnl Test whether the system has the 'intmax_t' type, but don't attempt to 11dnl find a replacement if it is lacking. 12 13AC_DEFUN([gt_TYPE_INTMAX_T], 14[ 15 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) 16 AC_REQUIRE([gl_AC_HEADER_STDINT_H]) 17 AC_CACHE_CHECK(for intmax_t, gt_cv_c_intmax_t, 18 [AC_TRY_COMPILE([ 19#include <stddef.h> 20#include <stdlib.h> 21#if HAVE_STDINT_H_WITH_UINTMAX 22#include <stdint.h> 23#endif 24#if HAVE_INTTYPES_H_WITH_UINTMAX 25#include <inttypes.h> 26#endif 27], [intmax_t x = -1;], gt_cv_c_intmax_t=yes, gt_cv_c_intmax_t=no)]) 28 if test $gt_cv_c_intmax_t = yes; then 29 AC_DEFINE(HAVE_INTMAX_T, 1, 30 [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) 31 fi 32]) 33