Annotation of /trunk/xmms/gentoo-m4/longlong.m4
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Tue May 8 20:52:56 2007 UTC (17 years, 4 months ago) by niro
File size: 931 byte(s)
Tue May 8 20:52:56 2007 UTC (17 years, 4 months ago) by niro
File size: 931 byte(s)
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1 | niro | 153 | # longlong.m4 serial 4 |
2 | dnl Copyright (C) 1999-2003 Free Software Foundation, Inc. | ||
3 | dnl This file is free software, distributed under the terms of the GNU | ||
4 | dnl General Public License. As a special exception to the GNU General | ||
5 | dnl Public License, this file may be distributed as part of a program | ||
6 | dnl that contains a configuration script generated by Autoconf, under | ||
7 | dnl the same distribution terms as the rest of that program. | ||
8 | |||
9 | dnl From Paul Eggert. | ||
10 | |||
11 | # Define HAVE_LONG_LONG if 'long long' works. | ||
12 | |||
13 | AC_DEFUN([jm_AC_TYPE_LONG_LONG], | ||
14 | [ | ||
15 | AC_CACHE_CHECK([for long long], ac_cv_type_long_long, | ||
16 | [AC_TRY_LINK([long long ll = 1LL; int i = 63;], | ||
17 | [long long llmax = (long long) -1; | ||
18 | return ll << i | ll >> i | llmax / ll | llmax % ll;], | ||
19 | ac_cv_type_long_long=yes, | ||
20 | ac_cv_type_long_long=no)]) | ||
21 | if test $ac_cv_type_long_long = yes; then | ||
22 | AC_DEFINE(HAVE_LONG_LONG, 1, | ||
23 | [Define if you have the 'long long' type.]) | ||
24 | fi | ||
25 | ]) |