Annotation of /trunk/xmms/gentoo-m4/ulonglong.m4
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Revision 153 -
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Tue May 8 20:52:56 2007 UTC (17 years, 1 month ago) by niro
File size: 1058 byte(s)
Tue May 8 20:52:56 2007 UTC (17 years, 1 month ago) by niro
File size: 1058 byte(s)
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| 1 | niro | 153 | # ulonglong.m4 serial 3 |
| 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_UNSIGNED_LONG_LONG if 'unsigned long long' works. | ||
| 12 | |||
| 13 | AC_DEFUN([jm_AC_TYPE_UNSIGNED_LONG_LONG], | ||
| 14 | [ | ||
| 15 | AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long, | ||
| 16 | [AC_TRY_LINK([unsigned long long ull = 1ULL; int i = 63;], | ||
| 17 | [unsigned long long ullmax = (unsigned long long) -1; | ||
| 18 | return ull << i | ull >> i | ullmax / ull | ullmax % ull;], | ||
| 19 | ac_cv_type_unsigned_long_long=yes, | ||
| 20 | ac_cv_type_unsigned_long_long=no)]) | ||
| 21 | if test $ac_cv_type_unsigned_long_long = yes; then | ||
| 22 | AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1, | ||
| 23 | [Define if you have the 'unsigned long long' type.]) | ||
| 24 | fi | ||
| 25 | ]) |