Enrico Weigelt wrote:
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
This may be something you should post on -dev. They are the ones that
handle this sort of thing.
Things are better there but take a flack jacket. Never hurts to have
one just in case you need it. ;-)
Dale
:-) :-)
