20:04 ade 

Update to 3.81

Whilst this hasn't been through a full -exp run, it has been extensively
tested on my own tinderboxes with an appropriate variety of gmake-using
ports.

14:31 netchild 

We already have a prototype for alloca() in stdlib.h, no need to
have it here too.

This lets us compile gmake with stricter compilers.

Submitted by:   marius@alchemy.franken.de