https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91886
--- Comment #18 from Rich Felker <bugdal at aerifal dot cx> --- > So use "wa" instead of "ws" in the two files you use it, and can we get > on with our lives? Translation: Introduce a regression on all existing versions of clang because GCC broke a documented public interface. How about no? > The places where in the past we put old internal constraints (and output > modifiers) back are places where for example glibc used it in installed > headers. That takes a decade or more to fix. These are not old internal constraints. They're publicly documented ones.