Given the age of this bug report, if this issue occurs again or to others, it'd be better to file a new bug report on it.
Fwiw, the error from the logs was: x86_64-linux-gnu-gcc: error: unrecognized command line option ‘-fstack-protector-strong’ make: *** [blib/arch/auto/Mail/SpamAssassin/CompiledRegexps/body_0/body_0.so] Error 1 command 'make >>/tmp/.spamassassin24489NMdVYUtmp/log' failed: exit 2 If anyone else thinks they're seeing this issue, the next action would probably be to find what is using the ‘-fstack-protector-strong’ option to gcc, and/or why x86_64-linux-gnu-gcc is not taking it. ** Changed in: spamassassin (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1565398 Title: package sa-compile 3.4.1-3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 25 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/spamassassin/+bug/1565398/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs