* configure (package_makefile_rules_frag): New variable, which names

        a file with generic rules, ...
        Change comment to mention we now have FIVE parts.
        * configure: Undo last change.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@17522 138bc75d-0d04-0410-961f-82ee72b054a4