On Wed, 2011-11-09 at 10:42 -0500, Tom Lane wrote: > Nils Philippsen <nils@xxxxxxxxxx> writes: > > On Fri, 2011-11-04 at 13:12 -0400, Tom Lane wrote: > >> I plan to provide the 1.2.x libpng shared library (and only the library, > >> not its devel support files) in a libpng-compat subpackage for the time > >> being. > > > Any reason why the compat package ships the libpng-1.2.pc pkg-config > > file? > > Yeah: I tried it without first, and found that I couldn't rebuild > anything. There are boatloads of packages that have pkgconfig(libpng12) > as an RPM-visible dependency, so if the compat package doesn't supply > it, those packages won't install and you can't rebuild any of their > dependencies. I have no idea why it was considered a good thing for RPM > to track this type of dependency, but it does. Yuck :-/. > > This made one of my packages use 1.5 headers, then later on > > attempt to link to libpng12.so which failed. > > I doubt that's coming from the libpng12 pkgconfig; more likely, you have > some other package you're depending on that needs to be rebuilt first, > because its pkgconfig file currently says to use -lpng12 in link commands. Not really, I should have described it in more detail: the package specifically asked pkg-config for libpng12 -- and since it exists, it went building happily (with the 1.5 headers, from -devel) and only failed when trying to link -lpng12. I'd have liked it to fail early on ;-). Nils -- Nils Philippsen "Those who would give up Essential Liberty to purchase Red Hat a little Temporary Safety, deserve neither Liberty nils@xxxxxxxxxx nor Safety." -- Benjamin Franklin, 1759 PGP fingerprint: C4A8 9474 5C4C ADE3 2B8F 656D 47D8 9B65 6951 3011 -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
