Only specify the root to keep platform-specifics out of the individual 
DLL makefiles.

Most dlls use libwine_unicode at this point, so there's nothing to
gain by having two separate libraries.

Prefix other entries with '/' to make them non-recursive.

makefiles, and added support for building a .def.a static import
library too.

Generate import libraries with the right name right away instead of
using an intermediate .spec.def file.

Van Buggenhout).

headers (with help from Dimitrie O. Paun).