Apologies, detecting sarcasm on the Internet is always tricky, but relevant to this discussion I have even gone so far as to make a CMake descriptor for PuTTY because I was compiling on Windows to fix some quirk that I didn't like (it was so many years ago I don't recall, but I did recall thinking "whhhhyyyyy!!!" to people that do cutesy home-grown build systems)
However, it seems that the universe heard my pleas https://git.tartarus.org/?p=simon/putty.git;a=commit;h=c19e7... Replace mkfiles.pl with a CMake build system
For context, I believe that a tool isn't open source unless I can build it, so I actually build almost anything I can from source for that reason