It is impossible to order the linker search path in such a way that libraries specified as full paths will be picked by the linker.
Directories and libraries involved are:
Directory: /home/kde-devel/kde4/kde/lib contains:
Library: /usr/lib/libqimageblitz.so

Directory: /usr/lib contains:
Library: /home/kde-devel/kde4/kde/lib/libkparts.so