On Thu, 15 May 2003, David Laight wrote:

: However I've also discovered that parallel makes break some of the other
: parts of the system.  Anything with:
:
: x y: d
: 	cmd
:
: Will get 'cmd' running twice at the same time - which can, and does,
: lead to corrupt files as well as wasted effort.

See <bsd.sys.mk>, which defines .y.h in terms of .y.c (I added this).

ParallelMake on Solaris uses `+' for this sort of thing; perhaps something
to add to ours:

x + y: d
	cmd

-- 
-- Todd Vierling <tv@pobox.com>