i succesfully builded artoolkit-2.72.1, and pix_artoolkit, which is loading fine, loading camera parameters and markers also: pix_artoolkit: (c) 2005-2006 Shigeyuki Hirai [pix_artoolkit]: ARToolKit support by Shigeyuki Hirai [pix_artoolkit]: loaded camera parameter file:(camera_para.dat) [pix_artoolkit]: loaded a marker file (patt.hiro) as 1...

but segfaulting without any message(even with -verbose), when i start render, or when i connect gemlist video to its inlet