intmax.m4 (1123B)
1 # intmax.m4 serial 6 (gettext-0.18.2) 2 dnl Copyright (C) 2002-2005, 2008-2014 Free Software Foundation, Inc. 3 dnl This file is free software; the Free Software Foundation 4 dnl gives unlimited permission to copy and/or distribute it, 5 dnl with or without modifications, as long as this notice is preserved. 6 7 dnl From Bruno Haible. 8 dnl Test whether the system has the 'intmax_t' type, but don't attempt to 9 dnl find a replacement if it is lacking. 10 11 AC_DEFUN([gt_TYPE_INTMAX_T], 12 [ 13 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) 14 AC_REQUIRE([gl_AC_HEADER_STDINT_H]) 15 AC_CACHE_CHECK([for intmax_t], [gt_cv_c_intmax_t], 16 [AC_COMPILE_IFELSE( 17 [AC_LANG_PROGRAM( 18 [[ 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 ]], 28 [[intmax_t x = -1; 29 return !x;]])], 30 [gt_cv_c_intmax_t=yes], 31 [gt_cv_c_intmax_t=no])]) 32 if test $gt_cv_c_intmax_t = yes; then 33 AC_DEFINE([HAVE_INTMAX_T], [1], 34 [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) 35 fi 36 ])