invitation: try compiling kdelibs using cmake

[Winfried]

I'm not sure if this is related to the cmake build system, but even though I 
have the following prefix in kdelibs CMakeCache.txt:

//Install path prefix, prepended onto install directories.
CMAKE_INSTALL_PREFIX:PATH=/home/kde4/kde4

after make install, /home/kde4/kde4/bin/kde-config --prefix still 
returns /opt/kde4.
This results in the following error when configuring kdebase:

kde4 at linux:~/kde4_trunk/kdebase> ./configure --prefix=/home/kde4/kde4 
--enable-debug=full
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking for -p flag to install... yes
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for kde-config... /home/kde4/kde4/bin/kde-config
configure: error: /home/kde4/kde4/bin/kde-config --prefix outputed the non 
existant prefix '/opt/kde4' for kdelibs.
                    This means it has been moved since you installed it.
                    This won't work. Please recompile kdelibs for the new 
prefix.


Winfried