https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66312
--- Comment #19 from Oleg Endo <olegendo at gcc dot gnu.org> --- (In reply to John Paul Adrian Glaubitz from comment #18) > (In reply to Oleg Endo from comment #17) > > Adrian, the recent GCC 5 build/bootstrap on SH included D, didn't it? > > If you mean that gdc is built with gcc-5 on sh4, then no. The gdc packages > are missing for gcc-5 on sh4 [1]. Yes, that's what I meant. Could you try building gdc with gcc 5?