If this is meant to be a bug in gufw, reassigning there. But it also seems to have very little useful information to go on, and your paste shows you having issues running debian/rules in a random source package?
** Package changed: powerpc-utils (Ubuntu) => gui-ufw (Ubuntu) ** Changed in: gui-ufw (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1573238 Title: Segmentation fault (core dumped) and GUFW To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gui-ufw/+bug/1573238/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs