For MSVC 11 you need to specify where the Win32.mak file is.
Win32.mak requires that CPU be set appropriately.

take @k-takata 's advice, simplify the expression.
Merge pull request #142 from ihacklog/master

For MSVC 11 you need to specify where the Win32.mak file is.  and Win32.mak requires that CPU be set appropriately.