https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69865
--- Comment #5 from Bernd Edlinger <bernd.edlinger at hotmail dot de> --- Created attachment 37736 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37736&action=edit possible patch this tries to be compatible to previous gcc versions (option a). always define __GNUC_GNU_INLINE__ and flag_gnu89_inline=1