@mitu Yes i know and it's why i don't want to modify files ... or maybe change one and make a DIFF patch to be compatible with updates.
And yes DL source is really fast, the long way was in compilation.
It's why on my own project ScummVM and OpenBOR i have DL the source code and compile it myself in a source directory i create.
Each time i update the code i can compile very fast to try it.