1 files changed, 23 insertions, 0 deletions

diff --git a/m4/ulonglong.m4 b/m4/ulonglong.m4
new file mode 100644
index 00000000..c375e474
--- /dev/null
+++ b/m4/ulonglong.m4
@@ -0,0 +1,23 @@
+# 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
+])