Re: make-dependency with multiple targets

[Petar Bogdanovic <petar%smokva.net@localhost>]

On Thu, Apr 03, 2008 at 12:58:08AM +0000, Johnny C. Lam wrote:
> On Wed, Apr 02, 2008 at 07:42:41PM +0200, Petar Bogdanovic wrote:
> > 
> > I'm just doing my first steps with make(1). The following Makefile
> > should create some postfix maps upon invocation:
> > 
> >     MAPS = client sender
> > 
> >     ${MAPS:S/$/.db/g}: ${MAPS}
> >             postmap ${.ALLSRC}
> > 
> > This does work pretty well but if nothing has to be done, make confuses
> > me with an inconsistent message:
> > 
> >     `client.db' is up to date.
> > 
> 
> This is equivalent to this:
> 
>       client.db sender.db: client sender
>               postmap client sender
> 
> The default target is just the first named target -- in this case,
> ``client.db''.

Thank you, that makes sense -- I misread the man-page where it says:

  ``Dependency lines consist of one or more targets, an operator,
    and zero or more sources''              ^^^^^^^