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Date: Wed, 07 Mar 2012 18:19:51 +0200
From: Andriy Gapon <avg@FreeBSD.org>
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Cc: "b. f." <bf1783@googlemail.com>, freebsd-ports@FreeBSD.org
Subject: Re: graphics/png does not build with lang/gcc
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on 07/03/2012 14:11 b. f. said the following:
> you can just
> install lang/gcc or lang/gcc46 and set USE_GCC=4.6 in your build
> environment, an included Makefile, or on the command line

BTW, our traditional taxonomy seems to be: "USE_XXX" is for stuff that ports
really require, "WITH_XXX" is for user preferences.
So it might make sense to create a WITH_GCC knob specifically for the use that you
suggested above.

-- 
Andriy Gapon