https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93958
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:e78e50d57edf4e0e49576a7a31b01477eed08223 commit r10-6977-ge78e50d57edf4e0e49576a7a31b01477eed08223 Author: Marek Polacek <pola...@redhat.com> Date: Sat Feb 29 14:50:19 2020 -0500 c++: Add -std=gnu++20 option [PR93958] One missing bit from r10-6656. The docs and target-supports.exp already handle -std=gnu++20. 2020-03-02 Marek Polacek <pola...@redhat.com> PR c++/93958 - add missing -std=gnu++20. * c.opt: Add -std=gnu++20.