Won't this require years of busywork? The various intrinsics, function attributes, C compiler args compatibility, ABI profiles for various platforms/systems (including the Windows GCC/VC ABI idiocy?)
upd: Also, I'm not sure that implementing -funsigned-char in 2022 will be all that great for morale!
upd: Also, I'm not sure that implementing -funsigned-char in 2022 will be all that great for morale!