It has been a while since I played around with MacMAME, mostly because my G4/450MP was just getting too damn slow to run most things without complaining, but since I got my boss to hand over a G5 1.8DP (to which I added 2.5GB RAM) I thought I'd give it another shot..
So I downloaded the 0.84 source files and started looking at XCode for about the first time (lately I have only been doing PHP coding...)...
It actually took me more time to find out how the heck I could get the project to compile as non-debug than the actual compilation itself

A lot longer
After I finally got it to build the target I've been playing games, games and more games (I was so smart to pull the 0.84 full archive off bittorrent so I didn't have to update my hopelessly out of date ROM archive)...
I am pretty pleased with the speed of the games I play a lot, so after that I thought I would do some speed checking of the games that were totally unplayable before...
Well, most still are stangely enough... Hard Drivin' is no where near fluid, and the mentioned Tekken is only managing 4-6/60fps on my machine... Am I doing something wrong here? (no, no other apps running, CPU load is fairly low)..
Compiling MAME does manage to warm up the room here quite a bit, wow, that rear exhaust of my G5 is amazingly warm...
Arnoud