kde-config --help gives:
Options:
--expandvars expand ${prefix} and ${exec_prefix} in output
--prefix Compiled in prefix for KDE libraries
--exec-prefix Compiled in exec_prefix for KDE libraries
--localprefix Prefix in $HOME used to write files
--version Compiled in version string for KDE libraries
--types Available KDE resource types
--path type Search path for resource type
--install type Prefix to install resource files to
kde-config --types gives:
apps - Applications menu (.desktop files) config - Configuration files data - Where applications store data exe - Executables in $prefix/bin html - HTML documentation icon - Icons lib - Libraries locale - Translation files for KLocale mime - Mime types pixmap - unknown type services - Services servicetypes - Service types sound - Application sounds templates - Templates wallpaper - Wallpapers
These are valid inputs of --path and --install.
--install gives the paths kdelibs was compiled for,
while --path gives the whole set of paths as they are searched in the current
environment.
So while --path config can return
/home/coolo/.kde/share/config:/etc/kde2:/opt/kde2/share/config
--install config will return
${prefix}/share/config
you can ask for --prefix too, and --expandvars expands this
right for you and gives:
/home/coolo/KDE/share/config