from the max for live production guidelines document: http://downloads.ableton.com/misc/maxforlive_production_guidelines.pdf "Developers can compile Max C-Externals that work on Mac and PC. You will need to use the latest version of Max 5. Please contact Cycling ´74 if you have any questions about compiling cross-platform externals. "

is this possible? if so, what is the best way to do it?