https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107860
--- Comment #9 from simon at pushface dot org --- (In reply to Andrew Pinski from comment #8) > You need to do "arch -x86_64 bash" to this build really. > Otherwise you end up with the arm64 assembler. > So if you start with that, it should work. Exactly so. I don't think I completely understood your point at the time, sorry about that, but today I verified it!