https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113283
--- Comment #4 from cqwrteur <unlvsur at live dot com> --- Created attachment 57012 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57012&action=edit Proposed errno numbers These numbers come from Linux Kernel Headers and redhat Newlib-Cygwin. I guess these numbers would be ok and commonly agreed. If you think this is ok, i will start working on clang and libcxx to use these numbers.