* Makefile.tpl (clean-target-libgcc): Invoke clean-target-libgcc
	from the gcc build directory.
	* Makefile.in: Regenerate.
gcc/
	* Makefile.in (clean-target): Depend on clean-target-libgcc.
	(clean-target-libgcc): Import rule from the top-level Makefile.in.

From-SVN: r107668