https://github.com/tom-seddon/b2/blob/master/snmake.exe - standalone build of GNU Make 3.80. Has a couple of hacks in it to better support Windows-style paths with colons in it. I think this came from the SN Systems Playstation2 SDK. Thanks to the GPL, you can have it too.

(I have no idea whether this will successfully run a C compiler for you on Windows, though. I mostly use it to run Makefiles with phony targets as a cross-platform replacement for shell scripts.)