https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57025
Alan Coopersmith <alan.coopersmith at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |alan.coopersmith at oracle dot com | |, | |ro at CeBiTec dot Uni-Bielefeld.DE --- Comment #7 from Alan Coopersmith <alan.coopersmith at oracle dot com> --- This seems to go back to: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=a6905708d86d6c2d8560168ac5accb816a2038c8 and was probably to deal with the bit of the Solaris system headers in various releases that throws an error if you try to define _XOPEN_SOURCE to 600 or 700 and didn't have a __STDC_VERSION__ matching C99 defined.