1# inttypes_h.m4 serial 10
2dnl Copyright (C) 1997-2004, 2006, 2008-2017 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7dnl From Paul Eggert.
8
9# Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
10# doesn't clash with <sys/types.h>, and declares uintmax_t.
11
12AC_DEFUN([gl_AC_HEADER_INTTYPES_H],
13[
14  AC_CACHE_CHECK([for inttypes.h], [gl_cv_header_inttypes_h],
15    [AC_COMPILE_IFELSE(
16       [AC_LANG_PROGRAM(
17          [[
18#include <sys/types.h>
19#include <inttypes.h>
20          ]],
21          [[uintmax_t i = (uintmax_t) -1; return !i;]])],
22       [gl_cv_header_inttypes_h=yes],
23       [gl_cv_header_inttypes_h=no])])
24  if test $gl_cv_header_inttypes_h = yes; then
25    AC_DEFINE_UNQUOTED([HAVE_INTTYPES_H_WITH_UINTMAX], [1],
26      [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>,
27       and declares uintmax_t. ])
28  fi
29])
30