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comparison m4/intmax_t.m4 @ 267:bec6d2480f08 2.6

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Added add'l generated files for release
author lost
date Tue, 22 Dec 2009 05:33:32 +0000
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266:5f25e7afac21 267:bec6d2480f08
1 # intmax_t.m4 serial 7
2 dnl Copyright (C) 1997-2004, 2006-2007, 2009 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 Paul Eggert.
8
9 AC_PREREQ([2.13])
10
11 # Define intmax_t to 'long' or 'long long'
12 # if it is not already defined in <stdint.h> or <inttypes.h>.
13
14 AC_DEFUN([gl_AC_TYPE_INTMAX_T],
15 [
16 dnl For simplicity, we assume that a header file defines 'intmax_t' if and
17 dnl only if it defines 'uintmax_t'.
18 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
19 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
20 if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then
21 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
22 test $ac_cv_type_long_long_int = yes \
23 && ac_type='long long' \
24 || ac_type='long'
25 AC_DEFINE_UNQUOTED([intmax_t], [$ac_type],
26 [Define to long or long long if <inttypes.h> and <stdint.h> don't define.])
27 else
28 AC_DEFINE([HAVE_INTMAX_T], [1],
29 [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.])
30 fi
31 ])
32
33 dnl An alternative would be to explicitly test for 'intmax_t'.
34
35 AC_DEFUN([gt_AC_TYPE_INTMAX_T],
36 [
37 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
38 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
39 AC_CACHE_CHECK([for intmax_t], [gt_cv_c_intmax_t],
40 [AC_TRY_COMPILE([
41 #include <stddef.h>
42 #include <stdlib.h>
43 #if HAVE_STDINT_H_WITH_UINTMAX
44 #include <stdint.h>
45 #endif
46 #if HAVE_INTTYPES_H_WITH_UINTMAX
47 #include <inttypes.h>
48 #endif
49 ], [intmax_t x = -1; return !x;], gt_cv_c_intmax_t=yes, gt_cv_c_intmax_t=no)])
50 if test $gt_cv_c_intmax_t = yes; then
51 AC_DEFINE([HAVE_INTMAX_T], [1],
52 [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.])
53 else
54 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
55 test $ac_cv_type_long_long_int = yes \
56 && ac_type='long long' \
57 || ac_type='long'
58 AC_DEFINE_UNQUOTED([intmax_t], [$ac_type],
59 [Define to long or long long if <stdint.h> and <inttypes.h> don't define.])
60 fi
61 ])