Gentoo Archives: gentoo-dev

From: Ciaran McCreesh <ciaranm@g.o>
To: gentoo-dev@l.g.o
Subject: [gentoo-dev] Making PROFILE_ARCH more useful?
Date: Sun, 12 Feb 2006 09:25:58
Message-Id: 20060212092322.73928760@snowdrop.home
PROFILE_ARCH is currently used for various sub-architectures (e.g.
sparc32 vs sparc64, 32 bit ppc vs ppc64, xbox vs normal x86) that don't
have their own keyword but that do occasionally need special behaviour.
It can be used in conditionals, but because no-one ever quite got
around to it, it *can't* legally be used to alter metadata.

Is there any particular reason PROFILE_ARCH shouldn't be added to
USE_EXPAND? One example of something that could be fixed this way is
sys-apps/s390-oco (bug #99255). There're various others too, most of
which are in the "different upstream-provided binaries for different
subarchs" category but there's the odd dep here and there too (e.g. on
some multi ABI archs, certain kernel-related packages should dep upon a
special compiler).

The original idea was that PROFILE_ARCH would get expanded in a special
way, like ARCH does, but it never got implemented. Doing things that
way could still be an option, but expand seems to be the cleaner
solution now.

-- 
Ciaran McCreesh : Gentoo Developer (Wearer of the shiny hat)
Mail            : ciaranm at gentoo.org
Web             : http://dev.gentoo.org/~ciaranm

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