From: Enrico Weigelt <weigelt@metux.de>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Safe to install libpng-1.2.44?
Date: Mon, 5 Jul 2010 03:38:47 +0200 [thread overview]
Message-ID: <20100705013847.GA8861@nibiru.local> (raw)
In-Reply-To: <4C2F2450.4080109@gmail.com>
Hi folks,
<big_snip />
I think the libpng issue shows up a more generic problem:
we IMHO dont have a way for recording, which version / interface
of some version a package is built against. The need for things
like revdep-rebuild also comes from that.
I'm currently working on an generic design for that, some ideas:
(of course, yet limited to C and similar languages ;-o)
* libraries with (incompatible) interface changes should install
their headers under some own versioned prefix
* library imports should _always_ happen via pkg-config
(dont use .la files)
* pkg-config descriptors are extended to declare the API and
ABI version and generation, so interface breaks can be
determined automatically
* the package management records which version of some imported
library a package was built against (some kind of revdep-scan
between compile and merge)
* with that information the package management can do an smooth
upgrade (w/o temporary breaks until revdep-rebuild finished)
cu
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next prev parent reply other threads:[~2010-07-05 1:45 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-02 7:32 [gentoo-user] Safe to install libpng-1.2.44? Graham Murray
2010-07-02 22:01 ` Keith Dart
2010-07-02 22:49 ` Dale
2010-07-03 0:13 ` Neil Bothwick
2010-07-03 12:02 ` [gentoo-user] " Nikos Chantziaras
2010-07-04 19:29 ` Neil Bothwick
2010-07-03 0:58 ` [gentoo-user] " Keith Dart
2010-07-03 6:51 ` Graham Murray
2010-07-03 11:51 ` Dale
2010-07-05 1:38 ` Enrico Weigelt [this message]
2010-07-05 2:05 ` [gentoo-user] " walt
2010-07-06 13:14 ` Mike Edenfield
2010-07-05 2:16 ` [gentoo-user] " Dale
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