Unable to install OpenCV on Elementary OS Freya

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Hi.

I'm trying to install Opencv 3.0.0 on Elementary OS (Freya) but the installation is not generating the python module ("cv2.so" file). I already had installed OpenCV 3 before on Windows, OSX and Ubuntu 14.04 with no errors, so I think maybe the problem is related with Elementary OS...

I'm following this tutorial. I downloaded Opencv and Opencv-contrib and I'm making the build with this command:

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules -D BUILD_EXAMPLES=ON -D PYTHON_EXECUTABLE=/usr/bin/python2.7/ -D PYTHON_INCLUDE=/usr/include/python2.7/ -D PYTHON_LIBRARY=/usr/lib/libpython2.7.a -D PYTHON_PACKAGES_PATH=/usr/local/lib/python2.7/site-packages/ -D PYTHON_NUMPY_INCLUDE_DIR=/usr/local/lib/python2.7/dist-packages/numpy/core/include ..

(I made some additions trying to fix the problem, probably various of these commands are unnecessary...)

The problem is that I'm getting this scenario:

--   Python 2:
--     Interpreter:                 /usr/bin/python2.7 (ver 2.7.6)
--     Libraries:                   /usr/lib/libpython2.7.a (ver 2.7.6)
--     numpy:                       /usr/local/lib/python2.7/dist-packages/numpy/core/include (ver 1.10.2)
--     packages path:               lib/python2.7/dist-packages
-- 
--   Python 3:
--     Interpreter:                 /usr/bin/python3.4 (ver 3.4.3)

Package path is being set to dist-packages instead of site-packages (I know it's not the problem at all... but as I manually tried to set this path to site-packages it looks weird that it is on dist-packages).

Also... no one cv2.so are being generated during the make && make install commands (I tried "find / -name cv2.so with no results)

So... any suggestions how can I fix this problem and get the python module of opencv working on my Elementary OS?