Greetings, I'm trying to get the bullet binding working with Bullet 2.83.5. I installed libbullet-dev 2.83.5 from the Debian testing archive (I'm running Debian Stretch) and installed the Haskell binding (with cabal install --enable-documentation). Compiling the example results in a bunch of undefined reference errors like this: /home/sven/.cabal/lib/i386-linux-ghc-7.8.4/bullet-0.2.4/libHSbullet-0.2.4.a(Bullet.o):(.data.rel.ro._ZTV20btTetrahedronShapeEx[_ZTV20btTetrahedronShapeEx]+0x60): undefined reference to `btPolyhedralConvexShape::initializePolyhedralFeatures()' I guess this is because, the Debian package doesn't come with a static bullet libary, so I tried to compile it with dynamic libraries (with the -dynamic flag), but it just fails with other undefined references. The installation instructions for the Bullet binding say, it works with Bullet 2.73, so I'm afraid this is some version incompatibility. Does anyone know, how to get the binding working with Bullet 2.83 or what other causes the missing symbols can have? Regards Sven