On Wed, 2005-03-30 at 07:45 -0500, Daniel Veillard wrote: > On Wed, Mar 30, 2005 at 01:01:36PM +0200, Michael Schwendt wrote: > > On Wed, 30 Mar 2005 05:44:34 -0500, Daniel Veillard wrote: > > > > > Okay I have only one normative text for what pkgconfig is all about: > > > > > > man pkg-config > > > ------------------------- > > > The pkg-config program is used to retrieve information about installed > > > libraries in the system. It is typically used to compile and link > > > against one or more libraries. Here is a typical usage scenario in a > > > Makefile: > > > ------------------------- > > > > > > pkg-config is there to get library dependancies. Program needing fam or > > > gamin support need it to get the libraries to link to. The output of > > > pkgconfig cflags or link must *NOT* show glib output, even if from a > > > packaging level, gamin requires glib for the server side. The fact that > > > KDE requires fam or gamin, does not mean it should link against glib. > > > So without further detailed information allowing to disambiguate using > > > pkgconfig for it's original goal of simplifying compiling and linking from > > > the added use as a packaging dependancy, bug #152486 is a WONTFIX for me. > > > > Bug-specific replies are better added in bugzilla. I replied to #152486 > > The underlying concern I have is that pkg-config is self described as > a tool for libraries dependancies, and the reports I get here are about > packages dependancies. There can be good reasons why both are not the same. > I still don't have an explanation why both semantic are pushed as a > being the same distro wide, nor what I misssed assuming I got something > wrong. Daniel, .pc files contain dependencies, e.g. the gdk-pixbuf-2.0.pc file has the line Requires: gobject-2.0,gmodule-no-export-2.0 which means you'll get errors from pgk-config if you try to use the gdk- pixbuf-2.0.pc file without having glib-devel installed (which contains the gobject-2.0.pc and gmodule-no-export-2.0.pc files). Since rpm does not pick up these dependencies on its own, you need to add an explict Requires: glib-devel line to the gdk-pixbuf-devel spec portion. As you can see, library dependencies are not the same as package dependencies, but pkg-config does a good job of translating the former into the latter :-( Matthias
