[AD] Non C program accessing Allegro on OS X

[Jon Rafkind <workmin@xxxxxxxxxx>]

Im using Allegro with bindings written in Scheme( MzScheme ) but am 
running into problems on OS X. This works fine on Linux, though. 
Basically how its set up is I load allegro.so( or in this case 
allegro.dylib ) and extract functions from it which I can then call just 
like I would from C. In this way the "magic main" in OS X isnt run and 
things dont seem to work right when this is the case. Im not very 
familiar with the OS X internals and KittyCat was telling me it wasnt 
really possible to run Allegro on OS X without the magic main but Im 
hoping this can be changed so it works the same on Linux.

I did a bunch of debugging by adding printf's into the Allegro internals 
but couldnt really come up with anything since I think two or more 
threads are doing stuff once I activate allegro via install_allegro. One 
thing I did come up with is that if I dont have a main then __crt0_argv 
isnt set and in system.m line 489 will crash. This should read

else if ( __crt0_argv != NULL ){
     do_uconvert(__crt0_argv[0], U_ASCII, output, U_CURRENT, size);
  }

instead.

Any OS X have any insight into this problem?