Re: Looking for doc on target groups...

[Paul Smith]

On Wed, 2010-09-01 at 12:17 -0400, Brian R Cowan wrote:
> I have a makefile that has target definitions that look something like
> this: 
> 
> foo.out+bar.out+oof.out: : prereq1 
>         {script} 
> 
> I know that this is a special kind of target group ("this 'recipe'
> builds all these targets at once"), but I'll be darned if I can find
> this definition anywhere -- including in the GNU make manual. 
> 
> Can someone point me in the right direction please? 

This is a special feature of Solaris make.  I'm not aware of other
versions of make that support it; definitely GNU make does not support
this syntax.  That's why you won't find it in the manual.

The above rule looks, to GNU make, like a single target with the literal
name "foo.out+bar.out+oof.out" (since you have no whitespace here).