Compile:
    - get bullet physics engine:
        svn checkout http://bullet.googlecode.com/svn/trunk/ bullet-read-only

    - compile and install the library:
        cd bullet-read-only
        cmake .
        make
        sudo make install

    - compile and install the haskell bullet binding:
        cabal install (run command in the bullet.cabal's directory)

    - compile and run the example (needs OpenGL and GLUT):
        cd Examples
        ghc --make -O2 BulletExample
        ./BulletExample