Did you "apt-get install libgles2-dev" ?
what do you get? a black window, or no window at all?
[sbox-FREMANTLE_X86: ~/MyDocs/programming/simplegl] > ./main [sbox-FREMANTLE_X86: ~/MyDocs/programming/simplegl] >
[sbox-FREMANTLE_X86: ~/MyDocs/programming/simplegl] > run-standalone.sh ./main [sbox-FREMANTLE_X86: ~/MyDocs/programming/simplegl] >