https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80122
--- Comment #7 from rguenther at suse dot de <rguenther at suse dot de> --- On Tue, 21 Mar 2017, rpirrera at aitek dot it wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80122 > > --- Comment #6 from rpirrera at aitek dot it --- > How this work now? It works by not replacing va_arg_pack/nargs when inlining a call that itself uses va_arg_pack. > We can expect a back port to versions 5.4 and 6.3 of this patch? Or this will > exist only in the future version 7.x? I plan to backport it if no issues show up (the patch should apply cleanly to 6.3 at least so you can try yourself as well)