Fails like this:

```
* For target support_native_java.desktop_libsplashscreen_splashscreen_impl.obj:
splashscreen_impl.c
c:\buildbot\worker\build-jdkx-windows\build\src\java.desktop\share\native\libsplashscreen\splashscreen_impl.c(443): error C2220: the following warning is treated as an error
c:\buildbot\worker\build-jdkx-windows\build\src\java.desktop\share\native\libsplashscreen\splashscreen_impl.c(443): warning C4018: '>': signed/unsigned mismatch
c:\buildbot\worker\build-jdkx-windows\build\src\java.desktop\share\native\libsplashscreen\splashscreen_impl.c(444): warning C4018: '>': signed/unsigned mismatch
c:\buildbot\worker\build-jdkx-windows\build\src\java.desktop\share\native\libsplashscreen\splashscreen_impl.c(466): warning C4018: '>': signed/unsigned mismatch
c:\buildbot\worker\build-jdkx-windows\build\src\java.desktop\share\native\libsplashscreen\splashscreen_impl.c(467): warning C4018: '>': signed/unsigned mismatch
```