https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70350
--- Comment #3 from janus at gcc dot gnu.org --- Unfortunately this bug affects versions shipping with Debian and Ubuntu, e.g. gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2) which is the version included in the lastest Ubuntu release 16.04. See also: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=819367
