openGL extensions

I am using DevC++ 4.0.0 version I was trying to use glEnable(GL_RESCALE_NORMAL) but the compiler threw an error saying undefined reference to GL_RESCALE_NORMAL. What should i include for this??? I tried including glext.h but of no use compiler threw an error saying no such file or directory found…Please help me with this…:slight_smile:

Get it here :

2 hints :

  1. DevC++ is not maintained since quite some time. Try Code::blocks for a similar but up-to-date IDE.
  2. use GLEW to simplify yourself the usage of OpenGL for anything newer than GL 1.1