How to add soundsync to MAME?

[Stormrider]

I'd like to compile the latest build of MAME but adding the soundsync option? Has anyone instructions for this? My idea is to have syncrefresh enabled so as to have all games running at standard 60hz/60fps. Those that have lower frequencies will speed up to match the frequency and run smooth, without stuttering in sound thanx to soundsync (sound will increase its pitch, but that's all).

[Gray_Area]

Ask MAMEsick. He's got it in his build, that I think he more or less took from CabMAME.