From owner-freebsd-hackers@freebsd.org  Wed Nov 15 20:34:56 2017
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Subject: Re: poudriere 3.2.0 vs. "local" ports
From: Ian Lepore <ian@freebsd.org>
To: Craig Leres <leres@ee.lbl.gov>, freebsd-hackers@freebsd.org
Date: Wed, 15 Nov 2017 13:33:40 -0700
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References: <1243837e-bead-eabb-3e5e-237b76c612d1@ee.lbl.gov>
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On Mon, 2017-11-13 at 13:32 -0800, Craig Leres wrote:
> 
> I tried to find a way to insert lbl at the front of CATEGORIES in 
> ../Makefile.inc:
> 
>      .if "$(CATEGORIES:Mlbl)" == ""
>       CATEGORIES=    lbl $(CATEGORIES)
>      .endif
> 
> but I'm not sure it's possible; make appears to considers it
> recursive 
> even when it's protected by a conditional.

For this part of your questions, use CATEGORIES:= lbl $(CATEGORIES),
the := forces immediate expansion of the $(CATEGORIES) on the line,
avoiding the recursion problem.

-- Ian