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, 4 insertions, 7 deletions

diff --git a/ptvcursor.h b/ptvcursor.h
index b78a0ae3c2..34471e5bb5 100644
--- a/ptvcursor.h
+++ b/ptvcursor.h
@@ -3,7 +3,7 @@
  * Proto Tree TVBuff cursor
  * Gilbert Ramirez <gram@xiexie.org>
  *
- * $Id: ptvcursor.h,v 1.1 2000/07/28 20:03:43 gram Exp $
+ * $Id: ptvcursor.h,v 1.2 2000/08/11 13:34:25 deniel Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@zing.org>
@@ -24,18 +24,15 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
+#ifndef __PTVCURSOR_H__
+#define __PTVCURSOR_H__
+
 #ifdef HAVE_CONFIG_H
 # include "config.h"
 #endif
 
 #include <glib.h>
-
-#ifndef __PACKET_H__
 #include "packet.h"
-#endif
-
-#ifndef __PTVCURSOR_H__
-#define __PTVCURSOR_H__
 
 typedef struct ptvcursor ptvcursor_t;