971031 and Solaris: update

[Jim Wilson]

	That is why I sent this patch long time ago:

	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.

Unfortunately, this patch does not work in the presense of multilibs.
If we are going to set LD_LIBRARY_PATH, then it has to be set somewhere
inside runtest, so that it can be set correctly depending on which library
is actually being used.

It might be easier to make dejagnu emit -R options rather than set an
environment variable, provided that this will override LD_LIBRARY_PATH
if it is set incorrectly.

Jim