mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-12-23 00:36:31 +01:00
25 lines
931 B
Text
25 lines
931 B
Text
# longlong.m4 serial 4
|
|
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_LONG_LONG if 'long long' works.
|
|
|
|
AC_DEFUN([jm_AC_TYPE_LONG_LONG],
|
|
[
|
|
AC_CACHE_CHECK([for long long], ac_cv_type_long_long,
|
|
[AC_TRY_LINK([long long ll = 1LL; int i = 63;],
|
|
[long long llmax = (long long) -1;
|
|
return ll << i | ll >> i | llmax / ll | llmax % ll;],
|
|
ac_cv_type_long_long=yes,
|
|
ac_cv_type_long_long=no)])
|
|
if test $ac_cv_type_long_long = yes; then
|
|
AC_DEFINE(HAVE_LONG_LONG, 1,
|
|
[Define if you have the 'long long' type.])
|
|
fi
|
|
])
|