To build on MacOSX you need to install

libSDL
SDL_mixer
SDL_image

from sourcecode via command line.

Download from http://www.libsdl.org/

Then uncompress the files, open a terminal, change
to the corresponding directories and type:

./configure
make
make install

for each of the downloads.

To build the sge2d demos, open a terminal, change
to the sge2d base directory and type:

./configure
make macos
