Compilation error: error: ‘glDeleteVertexArrays’ was not declared in this scope

[Olumide]

I'm trying to compile a graphics library (NGL, 
http://nccastaff.bournemouth.ac.uk/jmacey/GraphicsLib/index.html), with 
OpenGL dependencies. in the Cygwin environment but I'm getting the error 
message,

‘glDeleteVertexArrays’ was not declared in this scope

What might the reason for this error?

Thanks,

- Olumide



--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple