but I can't find an opengles implementation for N900.
> dpkg -S /usr/include/GLES/gl.h libgles1-sgx-img-dev: /usr/include/GLES/gl.h > dpkg -S /usr/include/GLES2/gl2.h libgles2-sgx-img-dev: /usr/include/GLES2/gl2.h