https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121520
--- Comment #2 from Kishan Parmar <kishan at gcc dot gnu.org> --- FAIL: g++.dg/DRs/dr2576.C -std=gnu++26 (test for excess errors) Excess errors: <built-in>: error: keyword 'bool' defined as macro [-Wkeyword-macro]