Greg Troxel <gdt%lexort.com@localhost> writes: > 3) Adjust wrappers so that if e.g. c++17 is not in USE_CXX_FEATURES, > then any invocation with --std=c++17 will fail. I believe there have been no objections to this point either. I see this as orthogonal to the USE_LANGUAGES-sets-std/FORCE_CXX_STD cleanup.