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- # ulonglong.m4 serial 2 (fileutils-4.0.32, gettext-0.10.40)
- dnl Copyright (C) 1999-2002 Free Software Foundation, Inc.
- dnl This file is free software, distributed under the terms of the GNU
- dnl General Public License. As a special exception to the GNU General
- dnl Public License, this file may be distributed as part of a program
- dnl that contains a configuration script generated by Autoconf, under
- dnl the same distribution terms as the rest of that program.
- dnl From Paul Eggert.
- AC_DEFUN([jm_AC_TYPE_UNSIGNED_LONG_LONG],
- [
- AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long,
- [AC_TRY_LINK([unsigned long long ull = 1; int i = 63;],
- [unsigned long long ullmax = (unsigned long long) -1;
- return ull << i | ull >> i | ullmax / ull | ullmax % ull;],
- ac_cv_type_unsigned_long_long=yes,
- ac_cv_type_unsigned_long_long=no)])
- if test $ac_cv_type_unsigned_long_long = yes; then
- AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1,
- [Define if you have the unsigned long long type.])
- fi
- ])
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