wmaker: Marked args as unused for compiler in XExposeEvent callback code

The custom drawing code for windows is handled using callback functions,
which means having a fixed argument list for that function.

It is then correct to not use all the arguments, so this patch adds the
appropriate stuff to avoid a false report from compiler.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>

src/appicon.c

@@ -650,6 +650,9 @@ static void openApplicationMenu(WApplication * wapp, int x, int y)
 
 static void iconExpose(WObjDescriptor *desc, XEvent *event)
 {
+	/* Parameter not used, but tell the compiler that it is ok */
+	(void) event;
+
 	wAppIconPaint(desc->parent);
 }
 

src/dock.c

@@ -1432,6 +1432,10 @@ void wClipIconPaint(void)
 
 static void clipIconExpose(WObjDescriptor *desc, XEvent *event)
 {
+	/* Parameter not used, but tell the compiler that it is ok */
+	(void) desc;
+	(void) event;
+
 	wClipIconPaint();
 }
 
@@ -4311,6 +4315,9 @@ static char * findUniqueName(WScreen *scr, const char *instance_basename)
 
 static void drawerIconExpose(WObjDescriptor *desc, XEvent *event)
 {
+	/* Parameter not used, but tell the compiler that it is ok */
+	(void) event;
+
 	wDrawerIconPaint((WAppIcon *) desc->parent);
 }
 

src/framewin.c

@@ -1378,6 +1378,9 @@ static void handleButtonExpose(WObjDescriptor * desc, XEvent * event)
 	WFrameWindow *fwin = (WFrameWindow *) desc->parent;
 	WCoreWindow *button = (WCoreWindow *) desc->self;
 
+	/* Parameter not used, but tell the compiler that it is ok */
+	(void) event;
+
 #ifdef XKB_BUTTON_HINT
 	if (button == fwin->language_button) {
 		if (wPreferences.modelock)

src/icon.c

@@ -784,6 +784,9 @@ void wIconPaint(WIcon *icon)
 
 static void miniwindowExpose(WObjDescriptor * desc, XEvent * event)
 {
+	/* Parameter not used, but tell the compiler that it is ok */
+	(void) event;
+
 	wIconPaint(desc->parent);
 }
 
@@ -791,6 +794,9 @@ static void miniwindowDblClick(WObjDescriptor * desc, XEvent * event)
 {
 	WIcon *icon = desc->parent;
 
+	/* Parameter not used, but tell the compiler that it is ok */
+	(void) event;
+
 	assert(icon->owner != NULL);
 
 	wDeiconifyWindow(icon->owner);

src/menu.c

@@ -1667,6 +1667,9 @@ void wMenuScroll(WMenu * menu, XEvent * event)
 
 static void menuExpose(WObjDescriptor * desc, XEvent * event)
 {
+	/* Parameter not used, but tell the compiler that it is ok */
+	(void) event;
+
 	wMenuPaint(desc->parent);
 }