[vidarh]

It's been years since I built it, and then it just worked, though I think you're less likely to run into problems if you do a 32 bit build (it's not like any of the applications running in it are going to need a larger address space). But if you just want to play with it, it's probably better to look at one of the distributions, like Icaros (I don't like all of the choices made with Icaros, but it's a good starting point to have something functional rather than just a near empty default setup - in particular it includes support for integrating 68k Amiga apps into the host system):

http://icarosdesktop.org/

Icaros can run native (booting directly into it), virtualised, or hosted on Linux (or Windows, but I think that is less than optimal still)