libc: monkeypatch win32 to work around llvm pr12559
libc: monkeypatch win32 to work around llvm pr12559

jckarter/clay,iamrekcah/clay,jckarter/clay,jckarter/clay,mario-campos/clay,mario-campos/clay,mario-campos/clay,iamrekcah/clay,mario-campos/clay,aep/clay,iamrekcah/clay,aep/clay,jckarter/clay,iamrekcah/clay,aep/clay,jckarter/clay,aep/clay,mario-campos/clay,aep/clay,aep/clay,iamrekcah/clay,jckarter/clay