Ridiculous error after `#if defined(__COUNTER__)`, error: '__COUNTER__' is a C2y extension

[rnichollx]

/home/rpnx/quxlang/dev-workspace/sources/benchmark/include/benchmark/benchmark.h:1483:30: error: '__COUNTER__' is a C2y extension [-Werror,-Wc2y-extensions]
 1483 | #if defined(__COUNTER__) && (__COUNTER__ + 1 == __COUNTER__ + 0)

Clang should not error when __COUNTER__ is disabled by compiler flags, the defined clause should return false and then clang should continue on without an error.