Looking through the cmake stuff, I saw it was looking for GLES/gl.h.
However, looking at files on the pi, it seemed to be located at GL/gl.h.
I made the change and re-ran cmake.
This time, it seemed it found the GL library.
However, when running my app, and asking for 8 levels of AA in my ContextSettings, I still get the output from SFML that requested was 8 and actual was 0.
And the lines I draw still look crappy.
I'd really appreciate any help on this.
As I mentioned...same code using the pre-build 2.1 library on Raspberry Pi works great.