Bug#533789: llvm-gcc-4.2: non-standard gcc/g++ used for build (gcc-4.2)

[Matthias Klose]

If llvm-gcc-4.2 should stay in testing/unstable, please include a copy of the 
required files into the llvm-gcc-4.2 source. That should only be a part of the 
gcc-4.2 sources.