build machinery TODO (was: Testsuite and Fortran)

[DJ Delorie]

> note that check-c++ may actually be the g++ + libstdc++-v3 rule.

Easily changed.

> There was some discussion about this on the libstdc++ list within
> the last two weeks.

If the concensus was that it should test both, then go ahead and
change the check-c++ alias rule I put in.  Nothing else should need to
be changed to accomodate that, unless you need to change something in
the libstdc++-v3 directory.