Header files including others correctly

Hello,

In libwww, the CVS version, the header files don't include other
libwww headers when the need to.

For example

test.c is
===
/* optionally #include <stdio.h>, etc.*/
#include <HTAncMan.h>
===

gcc -fsyntax-only  test.c -I. 
gives lots of errors.


Also the headers should have wrappers to prevent inclusion twice:
#ifndef HEADER_H 
#define HEADER_H
body
#endif

Thanks.