[CMake] Linking boost python with mingw

[Hendrik Sattler]

Am Sonntag 09 Dezember 2007 schrieb Christiaan Putter:
> Swig works great, the cmake support could be better but there're no
> problems with linking to the Python libs.

I have the problem that the swig module is recompiled on every make run :-(
Additionally, the .i file has to be in ${CMAKE_CURRENT_SOURCE_DIR}, making 
more that one binding with the same output name rather hard.

HS