https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71458
Harald van Dijk <harald at gigawatt dot nl> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |harald at gigawatt dot nl --- Comment #9 from Harald van Dijk <harald at gigawatt dot nl> --- I know the GCC 5 branch is long closed and this will not be fixed, but for completeness, the backport to GCC 5 was wrong: error (UNKNOWN_LOCATION, "...") should have been error ("..."). error (UNKNOWN_LOCATION, "...") compiles but does the wrong thing: UNKNOWN_LOCATION is interpreted as a null pointer format string and causes a segfault.