A gcc Makefile patch.

[Jim Wilson]

	I need this for parallel build and libstdc++.so.

	Tue Aug 26 07:43:18 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)

	* Makefile.in (check-g++): Set/export LD_LIBRARY_PATH if
	necessary.
	(testsuite/site.exp): New target.
	(check-gcc, check-g++): Depend on testsuite/site.exp.
	Don't stop for failure.

I have installed this, except for the LD_LIBRARY_PATH stuff.

Setting LD_LIBRARY_PATH to ../libstdc++ will not work for any target
using multilibs, so we need a more general solution.  I think the
only way to make this work is to fix the problem in dejagnu, because it
is only in dejagnu that we know what the correct pathname to libstdc++.so is.

Jim