MAMEWorld Forums - EmuChat - MAME compiling, more info?

Hi. I've seen several guis for MAME compiling which have features such as optimizations for 64 bits, dual core, quad core, etc. I don't know if these optimizations are for accelerating the compiling process with these cpus or for improving MAME's perfomance with these cpus.

Honestly, I prefer to compile manually, as I have been doing up to now. However, I haven't been able to find information about options when compiling. The official MAME webpage tells you how to compile and that's all. Same with Mr's Do site, where the only suggestion is to use -j3, -j5 or -j7 to speed up the compiling process.

Is there any source of information about optimizations as regards the resulting build, or doesn't such a thing exist and the only thing I can do is run "make"?

The information about compiling, in general, is a bit imprecise. There are two different mingws: mingw64-w32 and mingw64-w64. The only thing I know is that the first one is for compiling with 32-bit oss and the second one for compiling with 64-bit oss. But does this mean that compiling with the first one will create a 32 bit MAME and with the second one a 64 bit mame?

Thanx.