Well, I decided to give it at try. So far, I've managed to build the main app and plugins zeroGS, GSSoft, CDVDNull, FWNull, SPU2Null and USBLinuz. I had to port most of the asm files to nasm as gas on mac is very picky, some more hacks too I've tried gtk+ for mac os x first but it didn't work for me and anyway zeroGS uses glX so I had to use x11 anyway. Now, looks somewhat like this I've tried to test zerogs but unfortunately it just gives me Bios Version 2.0 GIF reset NTSC Framelimiter rate updated (UpdateVSyncRate): 60 fps MTGS thread unlocked Bus error Well, I didn't hope that zeroGS would work straight away. Now I wanted to also test GSSoft, but I get the error: error loading GSsetBaseMem. According to other threads it means that GSsoft isn't compatible with new plugin specs. I wonder if one of the devs could update GSsoft a bit so I could test it. And just generally to learn if anybody cares enough to help out with porting pcsx2 to mac/x11?