[syslog-ng] Compiling Github Source (not Balabit source)

Hello, I have recently started exploring the syslog source with plan of contributing in future. I am able to run syslog using the source from Balabit site. But is there a way to compile the Github source? I have tried using Autoconf/Autoscan to generate the configure files but without success. I just have future pull requests in mind as Github source and Balabit source differ in a few files). -- Cheers, Asad