> What about those apps that uses gmake? Does it make use of
> /etc/mk.conf?

I think it only applies to pkgs, since they have mk.conf
included in their makefiles and is therefore irrelevant which
version of make they use.
But if you build through configure/make or write your own Makefile,
I think you would have to include (or define CC,CXX,...) for yourself.
Please correct me if I'm wrong...

jj