kdelibs modularizing (kde-mobile)

[Frederik Gladhorn]

Hi,
one thing that was discussed at the Tokamak 4 sprint was "KDE going mobile". 
We started a little investigation to look at kdelibs.
One thing to consider with the mobile world is that size matters ;)
And even for netbook environments it would be nice to have a smaller disk-
footprint. This might even benefit the desktop (you guessed it).

But since mobile would be completely new platforms, we think it justified to 
wreak some havoc - maybe breaking some binary compatibility in certain places 
(on that target platform only).

To make this effort sustainable, help from our build system experts is needed. 
Since I know cmake too little to have a good estimation how this should be 
implemented, I'd appreciate your comments (and attached a patch anyway, for 
your amusement).

The idea is to define some KDE_PLATFORM_PROFILEs that in turn can enable more 
fine grained switches to change things during the kdelibs build.
(see discussion on kde-maemo about that)

Another aspect would be modularization of kdelibs. In order to gain entry to a 
new platform where sometimes the entire space for applications is guaranteed 
to be "at least 32 mb" (MeeGo reference). I think this is where our packagers 
should have a say also.

So this is also a call to packagers to give their opinion how splitting up 
would be least painful. Or could be improved, as I just heard that some are 
doing this already.

Please cc kde-maemo at kde.org.

Cheers
Frederik


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