1 # uintmax_t.m4 serial 12
2 dnl Copyright (C) 1997-2004, 2007-2014 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.
11 # Define uintmax_t to 'unsigned long' or 'unsigned long long'
12 # if it is not already defined in <stdint.h> or <inttypes.h>.
14 AC_DEFUN([gl_AC_TYPE_UINTMAX_T],
16 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
17 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
18 if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then
19 AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
20 test $ac_cv_type_unsigned_long_long_int = yes \
21 && ac_type='unsigned long long' \
22 || ac_type='unsigned long'
23 AC_DEFINE_UNQUOTED([uintmax_t], [$ac_type],
24 [Define to unsigned long or unsigned long long
25 if <stdint.h> and <inttypes.h> don't define.])
27 AC_DEFINE([HAVE_UINTMAX_T], [1],
28 [Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>.])