19980914 snapshot make problem

[Jeffrey A Law]

  In message < 199809161704.KAA09567@smtp.earthlink.net >you write:
  > >>>>> "David" == David S Miller <davem@dm.cobaltmicro.com> writes:
  > 
  >     David> Isn't existance VPATH a good test?  Do other makes
  >     David> implement this feature in this way?
  > 
  > I've got no idea, frankly. :-(
VPATH implementations vary pretty wildly.  Any test we do with VPATH
runs the risk of getting a false positive.

I agree that we ought to have a check in the toplevel make/configure
mechanisms.

In fact, you'll note that gcc's configure code was recently changed
to warn about bogon environment variables that cause bootstrap failures.
(most of the code stolen from glibc :-)

jeff