These are the code changes and Makefile changes necessary to build and
run Yamagi Quake II on Max OS X. OS X 10.6 or higher is required, older
version may work but we cannot guarantee it. The documentation will be
added in another commit. This patch was contributed by W. Beser, I made
only some small cosmetical changes.
This is necessary since non-base OpenGL functions can't be connected by
calling the standard GetProcAddress() on Windows. To archive this the
old qwglGetProcAdress() is renamed into GetProcAdressGL() and a new
function pointer qwglGetProcAdress is introduced. On unixoid System it's
NULL and on Windows connected to wglGetProcAddress(). If it's NULL the
system wide function is called, if not the function Pointer is used.
To archive this, 3 new functions Sys_GetProcAddress(), Sys_LoadLibrary()
and Sys_FreeLibrary() were added to abstract the library loading code
into a platform independend API.
