Fill the SOURCES environment variable before you type "make", that is the current prefered method for a partial MAME compile. It will compile all core and shared components, and just the drivers you provide in SOURCES. Example:
Nice, that worked perfectly... For some reason I was getting compile errors when I edited out everything but handhelds in the mame.lst (which worked fine in the MESS days...) Guess it's removing something needed to finish the process.
BTW let me know if you need help finishing Ultraman ext artwork.
I probably will soon. I have 1 1/2 panels left to do, then I'll do the color separation. After that I'm still a little clueless, especially with grouping the elements together. But I can certainly see why no one wanted to tackle this one, it's such a pain. Just working in my spare time, but I should have it done this weekend.