WINGs: Place prototype of functions in WINGsP.h instead of local definition

It is a bad idea to declare the prototype of an external function
in a file as it won't allow the compiler to cross-check it.

WINGs/WINGs/WINGsP.h

@@ -268,6 +268,11 @@ typedef struct W_Screen {
 #define W_DRAWABLE(scr)		(scr)->rcontext->drawable
 
 
+/* ---[ configuration.c ]------------------------------------------------- */
+
+void W_ReadConfigurations(void);
+
+
 /* ---[ drag*.c ]--------------------------------------------------------- */
 
 typedef struct W_DragOperationItem {

WINGs/notification.c

@@ -5,6 +5,8 @@
 #include <string.h>
 
 #include "WUtil.h"
+#include "WINGsP.h"
+
 
 typedef struct W_Notification {
 	const char *name;
@@ -13,7 +15,6 @@ typedef struct W_Notification {
 	int refCount;
 } Notification;
 
-extern void W_FlushASAPNotificationQueue();
 
 const char *WMGetNotificationName(WMNotification * notification)
 {

WINGs/userdefaults.c

@@ -37,8 +37,6 @@ char *WMUserDefaultsDidChangeNotification = "WMUserDefaultsDidChangeNotification
 
 static void synchronizeUserDefaults(void *foo);
 
-extern char *WMGetApplicationName();
-
 #define DEFAULTS_DIR "/Defaults"
 #ifndef HAVE_INOTIFY
 /* Check defaults database for changes every this many milliseconds */

WINGs/wapplication.c

@@ -5,7 +5,6 @@
 #include "WINGsP.h"
 #include "wconfig.h"
 
-extern void W_InitNotificationCenter(void);
 
 struct W_Application WMApplication;
 

WINGs/widgets.c

@@ -298,8 +298,6 @@ static char STIPPLE_BITS[] = {
 	0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55
 };
 
-extern void W_ReadConfigurations(void);
-
 static int userWidgetCount = 0;
 
 /*****  end data  ******/