Miscellaneous code cleaning

- add <stdarg.h> or <varargs.h> in snprintf.h
  and remove those inclusions in the other #ifdef NEED_SNPRINTF_H codes

- remove the check of multiple inclusions in source (.c)  code
  (there is a bit loss of _cpp_ performance, but I prefer the gain of
   code reading and maintenance; and nowadays, disk caches and VM are
   correctly optimized ;-).

- protect all (well almost) header files against multiple inclusions

- add header (i.e. GPL license) in some include files

- reorganize a bit the way header files are included:

  First:
  #include <system_include_files>
  #include <external_package_include_files (e.g. gtk, glib etc.)>
  Then
  #include "ethereal_include_files"

  with the correct HAVE_XXX or NEED_XXX protections.

- add some HAVE_XXX checks before including some system header files

- add the same HAVE_XXX in wiretap as in ethereal

Please forgive me, if I break something (I've only compiled and regression
tested on Linux).

svn path=/trunk/; revision=2254

1 files changed, 1 insertions, 10 deletions

diff --git a/packet.h b/packet.h
index a8e0a51c78..85aaaaa395 100644
--- a/packet.h
+++ b/packet.h
@@ -1,7 +1,7 @@
 /* packet.h
  * Definitions for packet disassembly structures and routines
  *
- * $Id: packet.h,v 1.192 2000/08/10 07:58:43 guy Exp $
+ * $Id: packet.h,v 1.193 2000/08/11 13:34:38 deniel Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@zing.org>
@@ -27,18 +27,9 @@
 #ifndef __PACKET_H__
 #define __PACKET_H__
 
-#ifndef __WTAP_H__
 #include "wiretap/wtap.h"
-#endif
-
-#ifndef __PROTO_H__
 #include "proto.h"
-#endif
-
-#ifndef __TVBUFF_H__
 #include "tvbuff.h"
-#endif
-
 
 /* Pointer versions of ntohs and ntohl.  Given a pointer to a member of a
  * byte array, returns the value of the two or four bytes at the pointer.