underdocumented build process

I may missing some obvious information but build process may need more information. because I git clone --recursive <sysresccd-src> .. cd sysresccd-src LANG=C sudo ./build.sh setarch: failed to execute mkarchiso: No such file or directory

It looks that I got to bring mkarchiso from another repo or git. could you include it the projet so --recursive would bring mkarchiso. or give a path to quickly install it in the README file.

thanks you everybody for your involment.