System.Win32.Types to base library?

[Felix Martini]

I am working on some Windows specific code for GHC in the base
library. System.Win32.Types contains basic Win32 types and error
handling functions. Using them would mean a dependency on the Win32
library. I could duplicate parts of System.Win32.Types that i need,
but is it not preferable to relocate System.Win32.Types to the base
library?

Regards,
Felix