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, 8 deletions

diff --git a/gtk/column_prefs.c b/gtk/column_prefs.c
index f206310783..97b23082a7 100644
--- a/gtk/column_prefs.c
+++ b/gtk/column_prefs.c
@@ -1,7 +1,7 @@
 /* column_prefs.c
  * Dialog box for column preferences
  *
- * $Id: column_prefs.c,v 1.1 2000/01/10 01:43:58 guy Exp $
+ * $Id: column_prefs.c,v 1.2 2000/08/11 13:33:04 deniel Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@zing.org>
@@ -29,17 +29,10 @@
 
 #include <errno.h>
 
-#ifndef __GLOBALS_H__
 #include "globals.h"
-#endif
-
 #include "column_prefs.h"
 #include "gtkglobals.h"
-
-#ifndef __PREFS_DLG_H__
 #include "prefs_dlg.h"
-#endif
-
 #include "prefs.h"
 #include "column.h"