-#serial 3
+# 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.
-AC_DEFUN([jm_AC_TYPE_UNSIGNED_LONG_LONG],
+# Define HAVE_LONG_LONG if 'long long' works.
+
+AC_DEFUN([jm_AC_TYPE_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.])
+ 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
])