Redo commit 932945d4808e37ba0ca1a953571187f445e24f41

This time, make sure the object for disabling XSave support in msvcr can't be dropped by the linker.
Merge pull request #426 from shuffle2/xsave-workaround-fix

Redo commit 932945d4808e37ba0ca1a953571187f445e24f41
Fixes crashes from running on hardware with FMA3 support and software which doesn't support it.