I've written a Makefile that "compc"s changed packages into .SWC files. Then it "mxmlc"s all the .SWC files and Main.AS into a final .SWF. It runs fine but doesn't really seem to be faster than just "mxmlc"ing all the .AS files at the same time.
Based on my understanding of the Gary Grossman slide show: .ABC files should be easier to build from than .SWC files. Looking around I found information on how I should be able to compile all my classes down to .ABC files with "asc". I found asc.jar and wrote a wrapper for it; unfortunately, it can't do anything without a file listing all the interfaces. I think the interfaces file should be called "global.as" but I couldn't find it on my machine. Is there a way to extract something like "global.as" from the files that ship with flex? Am I wasting my time (will .ABC files not offer me any improvement)? thank you, David Tudury

