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1 | # intmax.m4 serial 6 (gettext-0.18.2) |
2 | dnl Copyright (C) 2002-2005, 2008-2019 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 | ]) |