OGL 1.2.1

Anyone know where I can find the OpenGL 1.2.1 gl.h header so that I can start learning how to use the multi-texturing extension? Is it on this site? I only found 1.1 headers.

search for ‘glext.h’ (never mind i just did ) http://oss.sgi.com/projects/ogl-sample/ABI/glext.h