https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113283
--- Comment #2 from cqwrteur <unlvsur at live dot com> --- (In reply to Jonathan Wakely from comment #1) > We can just make up our own numbers, since we won't be getting errno values > from the OS. i would like to make libcxx to have the same numbers as libstdc++. My proposed patches before to libcxx was using linux's errno numbers as the fallback if __has_include_next(<errno.h>) does not exist. What do you think?