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, 5 insertions, 1 deletions

diff --git a/packet-ipx.h b/packet-ipx.h
index 2e0ffbbc16..ae7a0f312b 100644
--- a/packet-ipx.h
+++ b/packet-ipx.h
@@ -2,7 +2,7 @@
  * Routines for NetWare's IPX
  * Gilbert Ramirez <gram@xiexie.org>
  *
- * $Id: packet-ipx.h,v 1.9 2000/08/07 03:20:45 guy Exp $
+ * $Id: packet-ipx.h,v 1.10 2000/08/11 13:34:11 deniel Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@zing.org>
@@ -31,6 +31,9 @@
  *
  */
 
+#ifndef __PACKET_IPX_H__
+#define __PACKET_IPX_H__
+
 #define IPX_NODE_LEN	6
 
 typedef guint32	IPXNet;
@@ -144,3 +147,4 @@ gchar* ipxnet_to_str_punct(const guint32 ad, char punct);
 void capture_ipx(const u_char *, int, packet_counts *);
 void dissect_ipx(tvbuff_t *, packet_info *, proto_tree *);
 
+#endif