opengl is optional

Just try to find out which library on mac os x holds the opengl support.

create a symlink to it and name it libGL.a

I found that the Mesa libGL.a resides under /usr/X11R6/lib. Linking to it works and opengl is used, however its horribly slow. Looking on the Mesa website it seems likely that its only doing software rendering.

Surely there's a way of hooking into OSX's opengl. I'm not that knowledgable of OSX else I'd know how to do it :\

I'm trying to get dosbox compiling using Codewarrior 8.3. Not only will this enable me to use apple's opengl and get hardware acceleration, but it may also produce more optimized code.

Anyway, I'm stuck with a compile error when building core_normal.cpp.

It includes the header "instructions.h" which defines the macro ADDB with 4 arguments:-

#define ADDB(op1, op2, load, save) \ etc.

However it later includes the header "prefix_none.h" which uses ADDB without args:-

RMEbGb(ADDB); break;

Codewarrior is saying that ADDB in this instance is undefined. I'm not really understanding what's intended by the code in prefix_none.h. Is it meant to use the ADDB that's in instructions.h or another defined elsewhere? Anything that illuminates this for me would be a big help 😀

Back with using gcc, I found that if it compiles without needing -lGL at all. The -framework OpenGL statement does all that's needed. So it'd be a good idea to remove those from the Makefile and the configure script when MacOSX is the platform.

On the other hand, the build I produced using the default compiler flags etc is still very slow (much slower than the released binary), and OpenGL doesn't seem at all accelerated. I'd still like to get it built using Codewarrior if someone can help me understand that code, as right now I'm really stuck on it :\