In the last episode (May 31), Jos Backus said:
> On Fri, May 31, 2002 at 06:55:54PM -0700, Julian Elischer wrote:
> > On Fri, 31 May 2002, Jos Backus wrote:
> > > Fyi: it appears nobody is really interested in having BSD make
> > > and GNU make converge a little, so I am not going waste any more
> > > time on this.
>
> > what would you want to do?
>
> BSD make and GNU make use different symbols for .ALLSRC: GNU make
> uses $^ and BSD make uses $>. All my tiny patch to BSD make does is
> have BSD make treat $^ as $>. This fixes the problem of the mktool
> Makefile which with this patch is executed properly by both make's.
> Perhaps there is a better way to achieve this but I don't see it.
> Since BSD make (or OpenBSD make, for that matter) doesn't currently
> use $^ I thought it was a pretty safe and useful change.
That doesn't fix Tru64 make, which uses $> like BSD make, or Solaris
make, which has neither. In fact, based on this sample, I suggest you
submit a patch to the gmake people adding $>, which obviously is the
defacto standard :)
Automake avoids the issue entirely by simply listing the dependencies
itself, so
> envuidgid: envuidgid.o
> $(CC) $(LDFLAGS) -o $@ $^
becomes
> $(CC) $(LDFLAGS) -o $@ envuidgid.o
--
Dan Nelson
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