It's not a segfault, it's an intentional abort. That's the mechanism the author chose to report errors:
mowsiany@beczulka:~$ potool
** ERROR **: Input file not specified! aborting... Aborted mowsiany@beczulka:~$
It's not a segfault, it's an intentional abort. That's the mechanism the author chose to report errors:
mowsiany@ beczulka: ~$ potool
** ERROR **: Input file not specified! beczulka: ~$
aborting...
Aborted
mowsiany@