Re: [gentoo-dev] Destroying dependancies...

[Matt Tucker <tuck@whistlingfish.net>]

-- Per Wigren <wigren@home.se> spake thusly:

> But how do we check that with the current information?
> To use the postfix-case above as an example..
> Postfix works fine with both MySQL v3.x and MySQL v4.x.
> If it is compiled against v3 it has to be recompiled if MySQL is
> upgraded from  v3 to v4, but not if it is upgraded from v4.0.11 to
> v4.0.12..
> 
> To use MPlayer as another example..
> MPlayer has to be recompiled EVERY TIME that DirectFB is upgraded,
> even minor  version, because it links to .so.<complete versionnumber>
> ..  But it doesn't  need to be recompiled if for example Vorbis is
> upgraded from v1.0.1 to v1.0.2  or even v1.8.5 because it links to
> libvorbis.so.0 ...

Those may be two different answers. In the case of MySQL, perhaps 4.0
should've been a different slot? In the case of MPlayer, clearly
portage needs a new feature which allows either MPlayer or DirectFB to
specify that a recompile needs to happen when DirectFB is upgraded.

Perhaps it would make more sense for it to be specified in the
dependancy, because that would allow MySQL 4.0 to specify the same
thing. Of course, you'd need to base it on version:

    RECOMPILE_DEPENDS="<DirectFB-${PV}"     or
    RECOMPILE_DEPENDS="*"

    RECOMPILE_DEPENDS="<MySQL-4.0"


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