This is a binary package for GNU Make, patched for use with mingw-w64/w32. It contains 32 and 64-bit executables and has three identical files for each. They only differ by name, and this is to suit everyone needing a particular convention:
These three can coexist in a same directory, with make.exe being the only troublesome one which cannot be present when using MSYS.
Just copy any of the *make.exe files to <mingw64>\bin and you're good to go.