Isn't the only difference the lack of a colon? It would be trivial to
auto-generate a shim file with all the defines in it that you could
simply include with your code. Certainly no more difficult than
renaming the opengl egg in the first place.
*If* I started using the opengl egg seriously, I would have done
something similar to convert everything to hyphenated style, e.g.
gl:load-identity, gl:matrix-mode, and maybe eventually just suggested
a patch. But I haven't used it enough to mind.
Nevertheless I would prefer you not modify the egg itself to do
glLikeThis as it would just be a step backward (IMHO).