On Mon, Dec 10, 2007 at 12:35:11AM -0300, Felipe Sateler wrote: > Steve Langasek wrote: > > > ... also, -Wl,--as-needed is *not* a complete solution for the problems > > caused by generating extra -l arguments. Every -lfoo option passed to the > > linker requires the corresponding -dev package to be installed at build > > time; while it is a bug if the -dev packages don't declare their > > dependencies, the impact of such bugs (which do happen fairly often) would > > be limited to static linking if appropriately-constructed .pc files were > > available. > > Note that pkgconfig is not the only problem here. Some extra links arise > from the fact that several utilities or plugins for an application are > built with the same "environment" (ie: the same flags), and not all of them > require all the linked libraries. Of course, one could argue that fixing > the build script is the way to go, but sometimes it is not trivial to do > that (badly crafted or unmaintained build scripts tend to be quite ugly). However, most of them are fixable. The only two problems we (ALT) had/have with default --as-needed were mpeg4ip suit and net-snmp (though it's being fixed already). But again, not every upstream author accepts changes to .pc; but i've never seen one not wanting to fix a build system. -- ALT Linux Team, ALT Linux Sisyphus project, http://www.altlinux.com
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