AHA!!!
.. Can't show you any of the results, yet, though, as the entire framework's graphical stuff is currently all commented out, until I convert everything from GLFW to GLES.
But that's a VERY important step in getting the thing up and running on iOS.
Previous attempts have spewed out thousands of Linker errors, but now I'm fairly confident that I vaguely might maybe know, roughly, what I might have been possibly doing wrong!!

A bizarre mismash of random thoughts this week, alongside an eventual plan of action, and only a day to impliment it!!
woot!