A libf2c patch

[Jeffrey A Law]

  In message < rzqen1ehwzl.fsf@djlvig.dl.ac.uk >you write:
  > >>>>> "HJ" == H J Lu <hjl@lucon.org> writes:
  > 
  >  HJ> "make check" failed in libf2c since there is no target for
  >  HJ> "make check". This patch works for me.
  > 
  > I'd prefer to see it try to compile (/run) libU77/u77-test.f, not that
  > that's a terribly wonderful test.
That would be useful.  Patches anyone? :-)

jeff