git clone git://git.code.sf.net/p/free-cad/code free-cad-code

sudo apt-get install build-essential cmake python python-matplotlib libtool libqt4-opengl-dev qt4-dev-tools python-dev python-pyside pyside-tools libcoin80-dev oce-draw libsoqt4-dev libxerces-c-dev libeigen3-dev libboost-dev libqtwebkit-dev libboost-filesystem-dev libshiboken-dev libboost-regex-dev libpyside-dev libboost-program-options-dev libode-dev libboost-signals-dev swig libboost-thread-dev libzipios++-dev libboost-thread-dev libfreetype6 libqt4-dev libfreetype6-dev -u

sudo apt-get install liboce-foundation-dev liboce-modeling-dev liboce-ocaf-dev liboce-visualization-dev liboce-ocaf-lite-dev libsimage-dev checkinstall python-pivy python-qt4 doxygen libspnav-dev -u

cd freecad (the folder where you cloned the freecad source)

$ cmake -DFREECAD_USE_EXTERNAL_PIVY=1 -DCMAKE_BUILD_TYPE=Debug .
$ make

sudo ln -s -f -i /usr/lib/libGL.so.340.65 /usr/lib/x86_64-linux-gnu/libGL.so