https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212 --- Comment #7 from Oleg Endo <olegendo at gcc dot gnu.org> --- An issue similar to that in c#5 has been reported here: https://gcc.gnu.org/ml/gcc/2014-04/msg00273.html I've tried applying that patch, but it doesn't fix the issue in c#2 nor c#5.