gluErrorString - produce an error string from	a GL or	GLU
error	code

gluErrorString
	gluErrorString(errCode) -> string

const	GLubyte	* gluErrorString( GLenum error )

error	 Specifies a GL	or GLU error code.

gluErrorString produces an error string from a GL or GLU
error	code. The string is in ISO Latin 1 format. For
example, gluErrorString(GL_OUT_OF_MEMORY) returns the	string
out of memory.

The standard GLU error codes are GLU_INVALID_ENUM,
GLU_INVALID_VALUE, and GLU_OUT_OF_MEMORY.  Certain other GLU
functions can	return specialized error codes through
callbacks.  See the glGetError reference page	for the	list
of GL	error codes.

glGetError, gluNurbsCallback,	gluQuadricCallback,
gluTessCallback