-# longlong.m4 serial 7
+# longlong.m4 serial 8
dnl Copyright (C) 1999-2006 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
# This fixes a bug in Autoconf 2.60, but can be removed once we
# assume 2.61 everywhere.
+# Note: If the type 'long long int' exists but is only 32 bits large
+# (as on some very old compilers), AC_TYPE_LONG_LONG_INT will not be
+# defined. In this case you can treat 'long long int' like 'long int'.
+
AC_DEFUN([AC_TYPE_LONG_LONG_INT],
[
AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int],