Re: [Gnu-arch-users] Build System links/ recommendations

[Andrew Suffield]

On Fri, Sep 03, 2004 at 08:25:45PM +0200, Jan Hudec wrote:
> On Fri, Sep 03, 2004 at 16:37:47 +0100, Andrew Suffield wrote:
> > On Fri, Sep 03, 2004 at 05:16:43PM +0200, Jan Hudec wrote:
> > > $ cat ,test.mk 
> > > @foo : | @bar
> > >   touch @foo
> > > 
> > > @bar :
> > >   test -f @bar || touch @bar
> > > 
> > > .PHONY: @bar
> > > $ touch @foo
> > > $ make -f ,test.mk @foo
> > > test -f @bar || touch @bar
> > > $
> > > 
> > > This does not count either.
> > 
> > Why not? That's exactly what you asked for: go recurse to the makefile
> > that can make the test properly, but don't prejudice the rebuild
> > because we recursed.
> >
> > Obviously it makes no sense if you're not recursing.
> 
> Obviously, because if it did count, it would have to read:
> 
> test -f @bar || touch @bar
> touch @foo
> 
> Because I have *TOUCHED* @bar. And thus it *IS* newer than @foo and thus
> @foo *MUST* be remade -- but isn't.

Oh, you'll need a regular dependency as well for that. Just don't
supply a rule for it.

-- 
  .''`.  ** Debian GNU/Linux ** | Andrew Suffield
 : :' :  http://www.debian.org/ |
 `. `'                          |
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