X11/Xlib.h not found in Ubuntu

Question

I\'m trying to write a rather trivial program using open gl on linux, but at a compile time it says:

Compile thumb : egl <= cuberenderer.c In file i

Answer 1

Why not try find /usr/include/X11 -name Xlib.h

If there is a hit, you have Xlib.h

If not install it using sudo apt-get install libx11-dev

and you are good to go :)