[Bug preprocessor/118813] [14/15 regression] Compile error when using __OPTIMIZE__ without value since r14-4490-g03a8504815d539

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118813

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
https://github.com/srsran/srsRAN_4G/commit/94a06867a3c3efbb8c6eb36e1ac2fa5f1aa2dc07

I like how it was someone else that reported the issue to GCC 3 years later.