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1 # inttypes_h.m4 serial 6
2 dnl Copyright (C) 1997-2004 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.
7 dnl From Paul Eggert.
9 # Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
10 # doesn't clash with <sys/types.h>, and declares uintmax_t.
12 AC_DEFUN([gl_AC_HEADER_INTTYPES_H],
14   AC_CACHE_CHECK([for inttypes.h], gl_cv_header_inttypes_h,
15   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
16 #include <inttypes.h>]], [[uintmax_t i = (uintmax_t) -1;]])],[gl_cv_header_inttypes_h=yes],[gl_cv_header_inttypes_h=no])])
17   if test $gl_cv_header_inttypes_h = yes; then
18     AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H_WITH_UINTMAX, 1,
19       [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>,
20        and declares uintmax_t. ])
21   fi