Some header files (newb question)

#include <gl\gl.h>
#include <gl\glu.h>
#include <gl\glaux.h>

I’m running Windows XP. Where can I download these three files?

Nevermind, I got them. But I do have another problem:

I put config.h in my compiler’s include/glt dir, but when I try to compile I get the error:

Error C:\dm\bin\..\include\glt/config.h 103: Target not detected, Win32 or Unix.

Here are the lines surrounding line 103 in config.h:

//
// iMac OSX Config
//

#if defined(__APPLE__) && defined(__ppc__)
#define GLT_UNIX
#define GLT_DARWIN
#define GLT_BIG_ENDIAN
#endif

//
// SGI Config   <---  LINE 103
//

#if defined(sgi)
#define GLT_UNIX
#define GLT_SGI
#define GLT_BIG_ENDIAN
#endif

//
// Generic Unix Config
//

http://www.opengl.org/discussion_boards/ubb/ultimatebb.php?ubb=get_topic;f=2;t=020284