Current build errors on MSVC

[Nicolás Alvarez]

Typing 'emerge kparts' on an empty kderoot currently leads to these errors:

- ki18n complains it can't find gettext's msgmerge executable. Should
we make it build-depend on gettext-tools?
- Solid can't find ntddcdrm.h and other Driver Kit headers. These are
available in kdewin. Should Solid depend on kdewin? Should Solid
include its own copy of the headers? Other options?

-- 
Nicolás