introduce pkg-config files

[Andreas Pakulat]

On 25.10.10 23:37:53, Rolf Eike Beer wrote:
> Andreas Pakulat wrote:
> > On 25.10.10 20:21:43, Rolf Eike Beer wrote:
> > > Andreas Pakulat wrote:
> > > > On 25.10.10 12:56:25, Allen Winter wrote:
> > > > > On Monday 25 October 2010 12:29:42 pm Yury G. Kudryashov wrote:
> > > > > > Allen Winter wrote:
> > > > > > > Adding the KDE Buildsystem to this discussion..
> > > > > > > 
> > > > > > > My only concern is that pkg-config files are typically installed
> > > > > > > in locations (like /usr or /usr/local) where the regular user
> > > > > > > doesn't have write-access. Thereby causing problems when
> > > > > > > installing KDE as a regular user.
> > > > > > 
> > > > > > When you install an autotools package to /home/user/prefix, it
> > > > > > installs pkg- config files to /home/user/prefix/lib/pkgconfig.
> > > > > > Then you need export PKG_CONFIG_PATH to inform pkg-config about
> > > > > > this location.
> > > > > 
> > > > > okey, good.
> > > > > then the kde pkg-config files would be installed in
> > > > > CMAKE_PREFIX_INSTALL/lib/pkgconfig, I guess.
> > > > > 
> > > > > cool.
> > > > > 
> > > > > then I can't think of any other objections.
> > > > 
> > > > The only thing I can think of is that it duplicates information at
> > > > least for kdepimlibs and kdebase. Those two modules already install
> > > > the cmake config files which (should) contain the same information.
> > > > Wether or not that is/should be blocking the addition of pc-files I
> > > > don't know.
> > > 
> > > The easiest ways would be to simply drag in the pkg-config stuff using
> > > pkg_check_modules from FindPkgConfig I guess.
> > 
> > Thats 'the other thing', i.e. use pkg-config files from cmake and we
> > already have pretty clear rules for that as Alex just answered. Whereas
> > as far as I understood the original mail is about generating and
> > installing .pc files from KDE libraries. That would allow projects that
> > don't want to use cmake (for whatever reasons) to use pkg-config to find
> > the kde libraries.
> 
> Sure. But why not simply use those files from the CMake files we install?

Basically: See Alex answer, pc files don't provide the same information
and pkg-config is not easily available on all our platforms. 

Andreas

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