https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89864
--- Comment #50 from Jürgen Reuter <juergen.reuter at desy dot de> --- (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?