mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-11-27 13:54:19 +08:00
24 lines
1.0 KiB
Plaintext
24 lines
1.0 KiB
Plaintext
|
# 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
|
||
|
|
])
|