QLP (quad leadless package) may be similiar enough to the QFN (quad flat no-leads) footprints that I have created.
Well, they aren't similar enough. Just have a look on QLP20 page 64 in http://www.chipcon.com/files/CC1100_Data_Sheet_1_0.pdf QFN20 page 54 in http://www.chipcon.com/files/CC1070_Datasheet_rev_1_2.pdf
I have a couple of QFN packages (including a 20 pin device) at
http://www.luciani.org/geda/pcb/pcb-footprint-list.html#QFN
BTW: why don't you use /usr/share/pcb/m4/qfn.inc macros?
Matthias