If you hit a crashbug (and you have compiled yourself from source): Go back into the source directory, and rerun configure with the same options and settings, just add --with-debug: ./configure --prefix=/usr/local --with-debug The force rebuild everything again and install (cflags changes isn't detected by make) make clean all install The run ocp again, and let it crash.. This time, ocp should automatically enter gdb. Now, run bt.. (and maybe other commands if you are in contact with me). This is the stuff I want sent to me (along with config.log from the source tree). (gdb) bt #1 123123 #2 123123 #3 32131 In order to make ocp quit, simply tell gdb to quit. (gdb) quit