I tested to install the nightly build into a fresh installation of stretch for a Pi 2B, everything compiled (slowly) but when trying to run my app i got the error:
ofAppEGLWindow: display(): eglSwapBuffers failed error.
So I ran sudo rpi-update and when rebuilding my app all the openFrameworks libraries were also recompiled (another long coffee break) but since then the app runs nicely.
ofxGPIO with latest patches works well.
I did have to rewrite the older ofXml code to the new syntax by looking at the supplied example.