I never got this working with just python. Segfaulted. Now it is using llvm in addition. The llvm on Debian Sid is not good enough so one must download sources and go to it. However, this does not compile like other ./configure. make, make install. Follow their instructions. Llvm itself will compile and install just fine. Now go to the llvm-gcc front end (they recommend using binaries but there are none for Debian and Debian's llvm is not recent enought so ...) The compile dies looking for GCC_4.2.0 as required by libstdc++. This libstdc++ is off Debian Sid but gcc there is not up to 4.2.0. So how might this "require" it. Anyone succeded with this thing?