Thanks to Peter Wang from allegro.cc, alguichan supports cmake now. Some missing files have been added as well. There are new files for change 10 (every project starts out small).
Now it's all up and verified. Back ends are available for allegro 4.4, also with allegroGL and OpenGL, and allegro 5.0 and 5.1. There are 3 example programs, one for plain allegro 4.4, one with allegroGL and OpenGL, and one for allegro 5.*.
I'll put my spin-off of the original guichan library here, which is more or less based on guichan 0.8.1, but with a number of changes and back ends only for allegro 4.4 and allegro 5.0 and 5.1.
The original guichan library is not actively maintained or developed any longer, so it would be a shame if this nice stuff would be lost.