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, 6 insertions, 1 deletions

diff --git a/packet-x11-declarations.h b/packet-x11-declarations.h
index 538731e80c..5912660610 100644
--- a/packet-x11-declarations.h
+++ b/packet-x11-declarations.h
@@ -1,11 +1,14 @@
 /* packet-x11-declarations.h
  *
- * $Id: packet-x11-declarations.h,v 1.1 2000/06/12 02:30:33 guy Exp $
+ * $Id: packet-x11-declarations.h,v 1.2 2000/08/11 13:33:54 deniel Exp $
  *
  * Put there so as to make packet-x11.c lighter. Generated from
  * x11-list. See packet-x11.c
  */
 
+#ifndef __PACKET_X11_DECLARATIONS_H__
+#define __PACKET_X11_DECLARATIONS_H__
+
 static int hf_x11_acceleration_denominator = -1;
 static int hf_x11_acceleration_numerator = -1;
 static int hf_x11_access_mode = -1;
@@ -373,3 +376,5 @@ static int hf_x11_window_value_mask_colormap = -1;
 static int hf_x11_window_value_mask_cursor = -1;
 static int hf_x11_x = -1;
 static int hf_x11_y = -1;
+
+#endif