Hello,
I've gotten MAME 0.161 to patch (using the instructions from Mr. Do!) but when I try to run the makemame.bat I get this:
C:\mamesrc>makemame
C:\mamesrc>set path=c:\mingw\mingw64-w64\bin
C:\mamesrc>make -j3
make: *** 3rdparty/genie/build/gmake.windows: No such file or directory. Stop.
make: *** [3rdparty/genie/bin/windows/genie.exe] Error 2
make: *** waiting for unfinished jobs....
BTW 'make.exe' and 'mingw32-make.exe' are in the C:\MinGW\mingw64-w64\bin folder.
I've gotten mame 0.154 to patch and compile successfully; so I'm really stumped by this output...

Has anybody seen this issue? Thanks!
-MotorHedJr