I have it working on my mac, here is what I compiled in Snow Leopard. http://www.box.net/shared/eppsxprs76 Cracker64's newest one. I'll keep this link up to date.
Date/Time: 2010-12-20 11:43:45.578 +1000 OS Version: Mac OS X 10.6.5 (10H574) Report Version: 6
Interval Since Last Report: 25910 sec Crashes Since Last Report: 9 Per-App Crashes Since Last Report: 8 Anonymous UUID: 46EC48F8-6899-4F7B-B014-5843839F9D31
Dyld Error Message: Library not loaded: /usr/local/lib/libSDL-1.2.0.dylib Referenced from: /Users/Matthew/Downloads/Cracker's Mod.app/Contents/MacOS/powder-x Reason: image not found
Dyld Error Message: Library not loaded: /user/local/lib/libSDL-1.2.0.dylib Referenced from: /Users/*******/Downloads/Cracker's Mod.app/Contents/MacOS/powder-x Reason: image not found
Something is wrong, because there is no such directory as /user/local
You need to install SDL. Look at my guide so you could install it correctly. I'm pretty sure for a lot of people they don't need SDl to run it but for some reason it looks like you do because the error means you don't have/you need SDL.. not a big deal lol.