Setting up KOS for development?

[S. P. Gardebiter]

Hello,
I've got huge trouble trying to compile KOS, I didn't even manage to compile the dc-chain. I found an old tutorial (written 2011) on some website but it didn't work either. The DC DEV ISO is also very outdated, so, how do I compile the new KOS? I already cloned it with GIT but I don't even know which version I've got because there is no clue about it in the whole package. Also a lot of missing information about how to get it run, is it just me or is that a bad style?
Anyway, I tried compiling the dc-chain by downloading gcc-core, gcc-g++ and gcc-objc version 4.5.2 and by inserting the mpfr, mpc and gmp lib into the gcc-4.5.2 directory. I've also downloaded binutils and newlib.
However, I took the version number from the tutorial, since there was no evidence in the KOS ReadMe.

Anybody got an idea how to compile it?