mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-09 18:31:04 +00:00
b02093873e
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8781 a592a061-630c-0410-9148-cb99ea01b6c8
26 lines
1.0 KiB
Plaintext
26 lines
1.0 KiB
Plaintext
# ulonglong.m4 serial 3
|
|
dnl Copyright (C) 1999-2003 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.
|
|
|
|
# Define HAVE_UNSIGNED_LONG_LONG if 'unsigned long long' works.
|
|
|
|
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 = 1ULL; 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
|
|
])
|