THIS LIST DOES NOT CLAIM COMPLETENESS. ==> Status indicators: (-) not fixed; (*) fixed; (?) not sure. What?!? You have the solution for one of these points? Run the Mailer! ====================================================================== Problems that are difficult to solve ------------------------------------ (-) Does not handle calls with variable number of arguments. (This is actually impossible to completely fix without reimplementing *all* of the logic behind the methods that take varargs; i.e. reimplementing everything necessary to deal with +stringWithFormat: or +arrayWithObjects: type API-- two very different beasts [bbum]). (-) It's impossible to send messages containing '$' in the name: ObjC allows it, Python does not. Known portability problems -------------------------- (?) GNU runtime support is currently non-existant. We need volunteers with GNU runtime expertise to move this forward. Either that, or a recipe for working with the pure-GNU runtime on OS X. (?) When WITH_FOUNDATION is not defined (it is only when using the GNU Runtime, and will be on OpenStep), Objective-C objects are not retained nor released, so the code may access freed objects. (?) GNUstep Base wants the main function of the application be ``gnustep_base_user_main''. NSProcessInfo implements its own ``main'' function to initialize internal copies of arguments and environ, then calls gnustep_base_user_main(). We have to patch pythonrun.c for this. Others ------ (-) Sending ObjC messages from multiple threads does not currently work. The ``argument arena'' in objc_support.c should be rewritten thread-safe. Ronald: The ``argument arena'' should be removed completely, we're mostly there. (-) Suspicious code is marked with 'XXX'. Missing ------- (-) It is impossible to pass a reference to an NSString object into the python runtime such that the fact that it remains an NSString. As such, it is impossible to invoke NSString specific methods directly.