[gnome-applets] window-buttons: fix -Wmissing-prototypes warnings

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 8c5be6a15e032395a217fbb16a7c649d7078795b
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Tue Mar 10 19:41:06 2020 +0200

    window-buttons: fix -Wmissing-prototypes warnings

 window-buttons/preferences.c   | 6 +++++-
 window-buttons/preferences.h   | 4 ++++
 window-buttons/windowbuttons.c | 8 +++++---
 3 files changed, 14 insertions(+), 4 deletions(-)
---
diff --git a/window-buttons/preferences.c b/window-buttons/preferences.c
index eed29f1ac..c38f81b1b 100755
--- a/window-buttons/preferences.c
+++ b/window-buttons/preferences.c
@@ -515,7 +515,11 @@ properties_close (GtkButton *object,
   wbapplet->window_prefs = NULL;
 }
 
-void properties_cb (GSimpleAction *action, GVariant *parameter, gpointer user_data) {
+void
+wb_applet_properties_cb (GSimpleAction *action,
+                         GVariant      *parameter,
+                         gpointer       user_data)
+{
        WBApplet *wbapplet;
        GtkWidget               ***btn;
        ImageOpenData   ***iod;
diff --git a/window-buttons/preferences.h b/window-buttons/preferences.h
index 408f75930..2dcd6a0d9 100644
--- a/window-buttons/preferences.h
+++ b/window-buttons/preferences.h
@@ -30,3 +30,7 @@ typedef struct {
        WBApplet *wbapplet;
        gushort button_id;
 } CheckBoxData;
+
+void wb_applet_properties_cb (GSimpleAction *action,
+                              GVariant      *parameter,
+                              gpointer       user_data);
diff --git a/window-buttons/windowbuttons.c b/window-buttons/windowbuttons.c
index bf20acb78..142679260 100755
--- a/window-buttons/windowbuttons.c
+++ b/window-buttons/windowbuttons.c
@@ -19,6 +19,7 @@
  */
 
 #include "windowbuttons.h"
+#include "preferences.h"
 
 /* Prototypes */
 //static void applet_change_background (PanelApplet *, PanelAppletBackgroundType, GdkColor *, GdkPixmap *);
@@ -30,7 +31,6 @@ static void viewports_changed (WnckScreen *, WBApplet *);
 static void window_closed (WnckScreen *, WnckWindow *, WBApplet *);
 static void window_opened (WnckScreen *, WnckWindow *, WBApplet *);
 static void about_cb ( GSimpleAction *, GVariant *, gpointer );
-void properties_cb ( GSimpleAction *, GVariant *, gpointer );
 static gboolean hover_enter (GtkWidget *, GdkEventCrossing *, WBApplet *);
 static gboolean hover_leave (GtkWidget *, GdkEventCrossing *, WBApplet *);
 static gboolean button_press (GtkWidget *, GdkEventButton *, WBApplet *);
@@ -65,7 +65,7 @@ static const gchar windowbuttons_menu_items [] =
        "</section>";
 
 static const GActionEntry windowbuttons_menu_actions [] = {
-       { "preferences", properties_cb,  NULL, NULL, NULL },
+       { "preferences", wb_applet_properties_cb,  NULL, NULL, NULL },
        { "about",       about_cb, NULL, NULL, NULL }
 };
 
@@ -252,7 +252,9 @@ getImageState (WBButtonState button_state)
 }
 
 /* Updates the images according to preferences and the umaxed window situation */
-void updateImages (WBApplet *wbapplet) {
+static void
+updateImages (WBApplet *wbapplet)
+{
        WnckWindow *controlledwindow;
        gint i;