Building on Mac OS X.2 (as a framework) requires the following change to the macosx.mak file: change : XINCLUDE=-I/usr/X11R6/include to : XINCLUDE=-INONE change XLIBDIRS=-L/usr/X11R6/lib to : XLIBDIRS=-LNONE change CC=cc to CC=gcc2 I haven't tried to use the framework yet but I have my fingers crossed.