scan-build is clang-based static analyzer. 'scan-build make - j 8' I run it over just guicast subdirectiry and got 63 errors: ory Double delete linklist.h destroy 31 6 V error R Memory Double delete bcwindowbase.C ~BC_WindowBase 135 16 V error R Memory Memory leak bootstrap.c main 195 17 V error R Memory Memory leak bctheme.C new_button 284 10 V error R Memory Memory leak bcwindowbase.C init_resources 4529 8 V error R Memory Memory leak bctheme.C new_button 325 10 V error R Memory Memory leak bootstrap.c main 196 17 V error R Result of Logic operation is pngtoraw.c main 93 14 V error garbage or R undefined Result of Logic operation is bctextbox.C cursor_motion_event 952 10 V error garbage or R undefined Logic Unix API bcresources.C find_fontentry 1750 15 V error R Logic Unix API bctextbox.C wdemand 1745 5 V error R Logic Unix API bctextbox.C tdemand 1757 14 V error R Memory Use-after-free arraylist.h get 88 8 V error R Memory Use-after-free bcsynchronous.C run 208 17 V error R Memory Use-after-free thread.C start 91 13 V error R http://127.0.0.1:8181/report-4938ea.html#EndPath oh, first pages were truncated.. I'll try to send complete report dir archive soon but most wirrying use after free and null pointers....