https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89864
--- Comment #51 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Jürgen Reuter from comment #50) > (In reply to Jakub Jelinek from comment #48) > > Perhaps that redefinition of _Atomic should be guarded with > > #if (__STDC_VERSION__ < 201112L) || defined(__cplusplus) > > or so, so that for C -std=c11 you still get _Atomic? > > So shall I wait for this to test the fix? no, please check that we have a basic fix, we can polish it once we know more about the situation and the possible way forward.