OF 0.9.0, can't compile examples on Pi2

64 mb seems to be ok. I use OF 0.84 and set minimum 128 mb GPU ram on RPI with NOOBS. I had the same ofAppEGLWindow issues because of my low GPU ram which was 16 mb. There is a complete guide for setup by @bakercp.
I'm not sure the issue is related with your OS or not.