https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80122
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to rpirrera from comment #2) > There is no work around for this bug? > > Core parts of our code relied on __builtin_va_arg_pack() and > __builtin_va_arg_pack_len() to work and now all silently fails. I don't see a way to workaround the issue apart from re-organizing the code (or patch GCC).