https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53943
--- Comment #2 from Konstantin Osipov <kostja.osipov at gmail dot com> --- kostja@atlas ~ % gcc -fobjc-direct-dispatch foo.m -lobjc foo.m: In function ‘main’: foo.m:14:9: internal compiler error: Segmentation fault @throw [Interface new]; ^ Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-5/README.Bugs> for instructions. kostja@atlas ~ % gcc --version gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609 Copyright (C) 2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.