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author | Ton Voon <tonvoon@users.sourceforge.net> | 2007-01-24 22:47:25 +0000 |
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committer | Ton Voon <tonvoon@users.sourceforge.net> | 2007-01-24 22:47:25 +0000 |
commit | fe856aa957978504137c1d425815d4ed8a22be40 (patch) | |
tree | a5bb46ce0e64b2056f75700eadbf27aba7c39418 /gl/m4/longlong.m4 | |
parent | 210f39bc84cfbb21cd72dc054e43f13815ee0616 (diff) | |
download | monitoring-plugins-fe856aa957978504137c1d425815d4ed8a22be40.tar.gz |
Sync with gnulib - lots of extraneous code removed in preference to GNU code
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1580 f882894a-f735-0410-b71e-b25c423dba1c
Diffstat (limited to 'gl/m4/longlong.m4')
-rw-r--r-- | gl/m4/longlong.m4 | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gl/m4/longlong.m4 b/gl/m4/longlong.m4 new file mode 100644 index 00000000..1f9e862e --- /dev/null +++ b/gl/m4/longlong.m4 | |||
@@ -0,0 +1,72 @@ | |||
1 | # longlong.m4 serial 10 | ||
2 | dnl Copyright (C) 1999-2006 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 | # Define HAVE_LONG_LONG_INT if 'long long int' works. | ||
10 | # This fixes a bug in Autoconf 2.60, but can be removed once we | ||
11 | # assume 2.61 everywhere. | ||
12 | |||
13 | # Note: If the type 'long long int' exists but is only 32 bits large | ||
14 | # (as on some very old compilers), HAVE_LONG_LONG_INT will not be | ||
15 | # defined. In this case you can treat 'long long int' like 'long int'. | ||
16 | |||
17 | AC_DEFUN([AC_TYPE_LONG_LONG_INT], | ||
18 | [ | ||
19 | AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int], | ||
20 | [AC_LINK_IFELSE( | ||
21 | [AC_LANG_PROGRAM( | ||
22 | [[long long int ll = 9223372036854775807ll; | ||
23 | long long int nll = -9223372036854775807LL; | ||
24 | typedef int a[((-9223372036854775807LL < 0 | ||
25 | && 0 < 9223372036854775807ll) | ||
26 | ? 1 : -1)]; | ||
27 | int i = 63;]], | ||
28 | [[long long int llmax = 9223372036854775807ll; | ||
29 | return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i) | ||
30 | | (llmax / ll) | (llmax % ll));]])], | ||
31 | [dnl This catches a bug in Tandem NonStop Kernel (OSS) cc -O circa 2004. | ||
32 | dnl If cross compiling, assume the bug isn't important, since | ||
33 | dnl nobody cross compiles for this platform as far as we know. | ||
34 | AC_RUN_IFELSE( | ||
35 | [AC_LANG_PROGRAM( | ||
36 | [[@%:@include <limits.h> | ||
37 | @%:@ifndef LLONG_MAX | ||
38 | @%:@ define HALF \ | ||
39 | (1LL << (sizeof (long long int) * CHAR_BIT - 2)) | ||
40 | @%:@ define LLONG_MAX (HALF - 1 + HALF) | ||
41 | @%:@endif]], | ||
42 | [[long long int n = 1; | ||
43 | int i; | ||
44 | for (i = 0; ; i++) | ||
45 | { | ||
46 | long long int m = n << i; | ||
47 | if (m >> i != n) | ||
48 | return 1; | ||
49 | if (LLONG_MAX / 2 < m) | ||
50 | break; | ||
51 | } | ||
52 | return 0;]])], | ||
53 | [ac_cv_type_long_long_int=yes], | ||
54 | [ac_cv_type_long_long_int=no], | ||
55 | [ac_cv_type_long_long_int=yes])], | ||
56 | [ac_cv_type_long_long_int=no])]) | ||
57 | if test $ac_cv_type_long_long_int = yes; then | ||
58 | AC_DEFINE([HAVE_LONG_LONG_INT], 1, | ||
59 | [Define to 1 if the system has the type `long long int'.]) | ||
60 | fi | ||
61 | ]) | ||
62 | |||
63 | # This macro is obsolescent and should go away soon. | ||
64 | AC_DEFUN([gl_AC_TYPE_LONG_LONG], | ||
65 | [ | ||
66 | AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) | ||
67 | ac_cv_type_long_long=$ac_cv_type_long_long_int | ||
68 | if test $ac_cv_type_long_long = yes; then | ||
69 | AC_DEFINE(HAVE_LONG_LONG, 1, | ||
70 | [Define if you have the 'long long' type.]) | ||
71 | fi | ||
72 | ]) | ||