bootstrapping problems with native compiler

[Jim Wilson]

	g77 won't build with any compiler except gcc.  Odds are it'll be a while
	before that restriction is lifted -- until that point we need to make
	sure it's not built as part of a "make bootstrap".  Patches for this
	would be greatly appreciated. 

The problem here is that LANGUAGES is not passed on recursive invocations
of make.  This causes a problem for any target (like irix6) with a multilib
libgcc, because this is implemented via a recursive make.  Manfred Hollstein
mailed a patch to the gcc2 developers that would fix this.  This will be
easy to fix for the next snapshot.

Jim