This is very cool news! I've really been craving using command.dat as I've been playing a lot of unfamiliar Neo-Geo fighters on my cab.
I've got no desire to switch to a GUI based MAME32, as I'm running MAMEwah and loving it.
Are there already any other unofficial builds that support command.dat that are command line? Will you be making a compiled version available or will we have to compile it ourselves with your diff?
Thanks