https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121526
--- Comment #3 from Halalaluyafail3 <luigighiron at gmail dot com> --- (In reply to Jakub Jelinek from comment #2) > EBCDIC if used at all is used mostly on s390* where -funsigned-char is the > default. > And not sure why such combination needs to be rejected, it is simply a not > fully conforming set of options (like many others are). > Don't use it if you want full conformance. I think it should be rejected to avoid confusion, or at least a warning should be printed to indicate that it's not conforming.