Opencv compilation

Hey Do we need to compile with opencv_contrib?

Do you have list of cmake flags needed to compile opencv for bgslib ?

Also,

After installing opencv on Windows, is it okay if i install bgslib with only these commands:

python setup.py build
&
python setup.py install

I want to use only python wrappers. Will these commands compile and install backend C++ algorithms and create python wrappers?

Please guide me.