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1# uintmax_t.m4 serial 9
2dnl Copyright (C) 1997-2004 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
9AC_PREREQ(2.13)
10
11# Define uintmax_t to 'unsigned long' or 'unsigned long long'
12# if it is not already defined in <stdint.h> or <inttypes.h>.
13
14AC_DEFUN([gl_AC_TYPE_UINTMAX_T],
15[
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([gl_AC_TYPE_UNSIGNED_LONG_LONG])
20 test $ac_cv_type_unsigned_long_long = 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.])
26 else
27 AC_DEFINE(HAVE_UINTMAX_T, 1,
28 [Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>.])
29 fi
30])