[gentoo-dev] Eclass assisted multilib dependent cache updates

[Gilles Dartiguelongue <eva@gentoo.org>]

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Hello all,

while working on bug #518422, I found out that while eclass calls the
relevant cache updates it has no idea whether or not it is called in a
multilib context or not.

Imho, this leads to avoidable human errors where one thinks eclass will
take care of lib dependent caches, which it does, but not for all
enabled ABIs which could lead to reduced functionality for non-native
ABIs.

While it seems reasonable to call multilib_foreach_abi
gnome2_pkg_postinst for multilib enabled ebuilds, it is still not ideal
as it will call a lot of functions for no good reason. On the other
hand, checking environment variable set by multilib eclasses does not
seem like a robust solution.

Is there any reasonable way to make phase functions aware of if they
are running in a multilib enabled ebuild to adjust their behavior ?

-- 
Gilles Dartiguelongue <eva@gentoo.org>
Gentoo

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