https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38182
--- Comment #20 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- r261797 removed all references to _ANSI_H_ from stddef.h, so this issue can't be relevant after then.
joseph at codesourcery dot com Mon, 21 Jan 2019 16:02:33 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38182
--- Comment #20 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- r261797 removed all references to _ANSI_H_ from stddef.h, so this issue can't be relevant after then.