Re: [gentoo-dev] Multiple Repo Support

[Ciaran McCreesh <ciaranm@gentoo.org>]

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On Tue, 27 Dec 2005 18:44:01 +0100 Carsten Lohrke <carlo@gentoo.org>
wrote:
| On Tuesday 27 December 2005 18:10, Ciaran McCreesh wrote:
| > eclass, and no -r bump.
| 
| Then it would not be possible to build the Application against
| different KDE versions and those who want to stay with a previous KDE
| version wouldn't be able to install any application.

Sure they would. In the eclass, do something like (untested, buggy,
just a vague proof of concept not real code):

s=
for s_p in ${KDE_NEEDS_PACKAGES} ; do
    s_s=
    for s_v in 3.3 3.4 4.0 ; do
        [[ -z ${KDE_MIN_VER} ]] || version_is_at_least ${KDE_MIN_VER}
s_v || continue
        s_s="${s_s} ${s_p}:${s_v}"
    done
    DEPEND="${DEPEND} || ( ${s_s} )"
done

| And conditional dependencies would break caching.

Nnnope. If you modify an eclass it forces a cache regen for packages
using said eclass (except possibly if you're using an overlay, but
that's a separate issue...).

-- 
Ciaran McCreesh : Gentoo Developer (I can kill you with my brain)
Mail            : ciaranm at gentoo.org
Web             : http://dev.gentoo.org/~ciaranm


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