diff --git a/src/gui.c b/src/gui.c
index bcc3c68..a80c9aa 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -678,11 +678,10 @@
  * Return OK when able to set the font.  When it failed FAIL is returned and
  * the fonts are unchanged.
  */
-/*ARGSUSED*/
     int
 gui_init_font(font_list, fontset)
     char_u	*font_list;
-    int		fontset;
+    int		fontset UNUSED;
 {
 #define FONTLEN 320
     char_u	font_name[FONTLEN];
@@ -1138,10 +1137,9 @@
  * Position the various GUI components (text area, menu).  The vertical
  * scrollbars are NOT handled here.  See gui_update_scrollbars().
  */
-/*ARGSUSED*/
     static void
 gui_position_components(total_width)
-    int	    total_width;
+    int	    total_width UNUSED;
 {
     int	    text_area_x;
     int	    text_area_y;
@@ -1374,10 +1372,9 @@
  * If "fit_to_display" is TRUE then the size may be reduced to fit the window
  * on the screen.
  */
-/*ARGSUSED*/
     void
 gui_set_shellsize(mustset, fit_to_display, direction)
-    int		mustset;		/* set by the user */
+    int		mustset UNUSED;		/* set by the user */
     int		fit_to_display;
     int		direction;		/* RESIZE_HOR, RESIZE_VER */
 {
@@ -3120,7 +3117,6 @@
  * If "oldval" is not NULL, "oldval" is the previous value, the new value is
  * in p_go.
  */
-/*ARGSUSED*/
     void
 gui_init_which_components(oldval)
     char_u	*oldval;
@@ -4411,7 +4407,7 @@
     if (curwin->w_p_wrap)
 	return FALSE;
 
-    if (curwin->w_leftcol == scrollbar_value)
+    if ((long_u)curwin->w_leftcol == scrollbar_value)
 	return FALSE;
 
     curwin->w_leftcol = (colnr_T)scrollbar_value;
@@ -4424,7 +4420,7 @@
 	    && longest_lnum < curwin->w_botline
 	    && !virtual_active())
     {
-	if (scrollbar_value > scroll_line_len(curwin->w_cursor.lnum))
+	if (scrollbar_value > (long_u)scroll_line_len(curwin->w_cursor.lnum))
 	{
 	    curwin->w_cursor.lnum = longest_lnum;
 	    curwin->w_cursor.col = 0;
@@ -4670,7 +4666,6 @@
 /*
  * Find window where the mouse pointer "y" coordinate is in.
  */
-/*ARGSUSED*/
     static win_T *
 xy2win(x, y)
     int		x;
@@ -5124,7 +5119,6 @@
  * of dropped files, they will be freed in this function, and caller can't use
  * fnames after call this function.
  */
-/*ARGSUSED*/
     void
 gui_handle_drop(x, y, modifiers, fnames, count)
     int		x;
diff --git a/src/gui_beval.c b/src/gui_beval.c
index e0d7b9c..796103c 100644
--- a/src/gui_beval.c
+++ b/src/gui_beval.c
@@ -15,7 +15,6 @@
 /*
  * Common code, invoked when the mouse is resting for a moment.
  */
-/*ARGSUSED*/
     void
 general_beval_cb(beval, state)
     BalloonEval *beval;
@@ -551,9 +550,8 @@
     return FALSE; /* continue emission */
 }
 
-/*ARGSUSED*/
     static gint
-mainwin_event_cb(GtkWidget *widget, GdkEvent *event, gpointer data)
+mainwin_event_cb(GtkWidget *widget UNUSED, GdkEvent *event, gpointer data)
 {
     BalloonEval *beval = (BalloonEval *)data;
 
@@ -663,9 +661,10 @@
     return FALSE; /* don't call me again */
 }
 
-/*ARGSUSED2*/
     static gint
-balloon_expose_event_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
+balloon_expose_event_cb(GtkWidget *widget,
+			GdkEventExpose *event,
+			gpointer data UNUSED)
 {
     gtk_paint_flat_box(widget->style, widget->window,
 		       GTK_STATE_NORMAL, GTK_SHADOW_OUT,
@@ -676,7 +675,6 @@
 }
 
 # ifndef HAVE_GTK2
-/*ARGSUSED2*/
     static void
 balloon_draw_cb(GtkWidget *widget, GdkRectangle *area, gpointer data)
 {
@@ -726,7 +724,6 @@
 /*
  * The X event handler. All it does is call the real event handler.
  */
-/*ARGSUSED*/
     static void
 pointerEventEH(w, client_data, event, unused)
     Widget	w;
@@ -877,7 +874,6 @@
     }
 }
 
-/*ARGSUSED*/
     static void
 timerRoutine(dx, id)
     XtPointer	    dx;
diff --git a/src/gui_gtk.c b/src/gui_gtk.c
index cdfe78b..0535e20 100644
--- a/src/gui_gtk.c
+++ b/src/gui_gtk.c
@@ -285,14 +285,14 @@
     return image;
 }
 
-/*ARGSUSED*/
     static gint
-toolbar_button_focus_in_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
+toolbar_button_focus_in_event(GtkWidget *widget UNUSED,
+			      GdkEventFocus *event UNUSED,
+			      gpointer data UNUSED)
 {
-    /* When we're in a GtkPlug, we don't have window focus events, only widget focus.
-     * To emulate stand-alone gvim, if a button gets focus (e.g., <Tab> into GtkPlug)
-     * immediately pass it to mainwin.
-     */
+    /* When we're in a GtkPlug, we don't have window focus events, only widget
+     * focus.  To emulate stand-alone gvim, if a button gets focus (e.g.,
+     * <Tab> into GtkPlug) immediately pass it to mainwin. */
     if (gtk_socket_id != 0)
 	gtk_widget_grab_focus(gui.drawarea);
 
@@ -585,9 +585,8 @@
     gtk_menu_prepend(GTK_MENU(menu->submenu_id), menu->tearoff_handle);
 }
 
-/*ARGSUSED*/
     static void
-menu_item_activate(GtkWidget *widget, gpointer data)
+menu_item_activate(GtkWidget *widget UNUSED, gpointer data)
 {
     gui_menu_cb((vimmenu_T *)data);
 
@@ -1202,9 +1201,8 @@
 #endif
 
 #ifndef USE_FILE_CHOOSER
-/*ARGSUSED*/
     static void
-browse_ok_cb(GtkWidget *widget, gpointer cbdata)
+browse_ok_cb(GtkWidget *widget UNUSED, gpointer cbdata)
 {
     gui_T *vw = (gui_T *)cbdata;
 
@@ -1218,9 +1216,8 @@
 	gtk_main_quit();
 }
 
-/*ARGSUSED*/
     static void
-browse_cancel_cb(GtkWidget *widget, gpointer cbdata)
+browse_cancel_cb(GtkWidget *widget UNUSED, gpointer cbdata)
 {
     gui_T *vw = (gui_T *)cbdata;
 
@@ -1234,9 +1231,8 @@
 	gtk_main_quit();
 }
 
-/*ARGSUSED*/
     static gboolean
-browse_destroy_cb(GtkWidget * widget)
+browse_destroy_cb(GtkWidget *widget UNUSED)
 {
     if (gui.browse_fname != NULL)
     {
@@ -1262,14 +1258,13 @@
  * initdir			initial directory, NULL for current dir
  * filter			not used (file name filter)
  */
-/*ARGSUSED*/
     char_u *
-gui_mch_browse(int saving,
+gui_mch_browse(int saving UNUSED,
 	       char_u *title,
 	       char_u *dflt,
-	       char_u *ext,
+	       char_u *ext UNUSED,
 	       char_u *initdir,
-	       char_u *filter)
+	       char_u *filter UNUSED)
 {
 #ifdef USE_FILE_CHOOSER
     GtkWidget		*fc;
@@ -1377,7 +1372,6 @@
  * dflt				default name
  * initdir			initial directory, NULL for current dir
  */
-/*ARGSUSED*/
     char_u *
 gui_mch_browsedir(
 	       char_u *title,
@@ -1460,7 +1454,6 @@
 }
 
 # ifdef FEAT_GUI_GNOME
-/* ARGSUSED */
     static int
 gui_gnome_dialog( int	type,
 		char_u	*title,
@@ -1611,7 +1604,6 @@
     GtkWidget	*dialog;
 } CancelData;
 
-/* ARGSUSED */
     static void
 dlg_button_clicked(GtkWidget * widget, ButtonData *data)
 {
@@ -1622,7 +1614,6 @@
 /*
  * This makes the Escape key equivalent to the cancel button.
  */
-/*ARGSUSED*/
     static int
 dlg_key_press_event(GtkWidget *widget, GdkEventKey *event, CancelData *data)
 {
@@ -1655,7 +1646,6 @@
 	gtk_main_quit();
 }
 
-/* ARGSUSED */
     int
 gui_mch_dialog(	int	type,		/* type of dialog */
 		char_u	*title,		/* title of dialog */
@@ -2215,7 +2205,6 @@
     GtkDialog	*dialog;	    /* Widget of the dialog */
 } DialogInfo;
 
-/*ARGSUSED2*/
     static gboolean
 dialog_key_press_event_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 {
@@ -2398,14 +2387,13 @@
  * Note: The push_in output argument seems to affect scrolling of huge
  * menus that don't fit on the screen.	Leave it at the default for now.
  */
-/*ARGSUSED0*/
     static void
-popup_menu_position_func(GtkMenu *menu,
+popup_menu_position_func(GtkMenu *menu UNUSED,
 			 gint *x, gint *y,
 # ifdef HAVE_GTK2
-			 gboolean *push_in,
+			 gboolean *push_in UNUSED,
 # endif
-			 gpointer user_data)
+			 gpointer user_data UNUSED)
 {
     gdk_window_get_origin(gui.drawarea->window, x, y);
 
@@ -2464,13 +2452,12 @@
     GtkWidget *all;	/* 'Replace All' action button */
 } SharedFindReplace;
 
-static SharedFindReplace find_widgets = { NULL, };
-static SharedFindReplace repl_widgets = { NULL, };
+static SharedFindReplace find_widgets = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL};
+static SharedFindReplace repl_widgets = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL};
 
-/* ARGSUSED */
     static int
 find_key_press_event(
-		GtkWidget	*widget,
+		GtkWidget	*widget UNUSED,
 		GdkEventKey	*event,
 		SharedFindReplace *frdp)
 {
@@ -2962,9 +2949,8 @@
 /*
  * Callback for actions of the find and replace dialogs
  */
-/*ARGSUSED*/
     static void
-find_replace_cb(GtkWidget *widget, gpointer data)
+find_replace_cb(GtkWidget *widget UNUSED, gpointer data)
 {
     int			flags;
     char_u		*find_text;
@@ -3010,9 +2996,8 @@
 }
 
 /* our usual callback function */
-/*ARGSUSED*/
     static void
-entry_activate_cb(GtkWidget *widget, gpointer data)
+entry_activate_cb(GtkWidget *widget UNUSED, gpointer data)
 {
     gtk_widget_grab_focus(GTK_WIDGET(data));
 }
@@ -3055,10 +3040,9 @@
 /*
  * ":helpfind"
  */
-/*ARGSUSED*/
     void
 ex_helpfind(eap)
-    exarg_T	*eap;
+    exarg_T	*eap UNUSED;
 {
     /* This will fail when menus are not loaded.  Well, it's only for
      * backwards compatibility anyway. */
diff --git a/src/gui_gtk_f.c b/src/gui_gtk_f.c
index a19d69a..23a9417 100644
--- a/src/gui_gtk_f.c
+++ b/src/gui_gtk_f.c
@@ -227,14 +227,13 @@
 
     if (!form_type)
     {
-	GtkTypeInfo form_info =
-	{
-	    "GtkForm",
-	    sizeof(GtkForm),
-	    sizeof(GtkFormClass),
-	    (GtkClassInitFunc) gtk_form_class_init,
-	    (GtkObjectInitFunc) gtk_form_init
-	};
+	GtkTypeInfo form_info;
+
+	form_info.type_name = "GtkForm";
+	form_info.object_size = sizeof(GtkForm);
+	form_info.class_size = sizeof(GtkFormClass);
+	form_info.class_init_func = (GtkClassInitFunc)gtk_form_class_init;
+	form_info.object_init_func = (GtkObjectInitFunc)gtk_form_init;
 
 	form_type = gtk_type_unique(GTK_TYPE_CONTAINER, &form_info);
     }
@@ -611,10 +610,9 @@
     }
 }
 
-/*ARGSUSED1*/
     static void
 gtk_form_forall(GtkContainer	*container,
-		gboolean	include_internals,
+		gboolean	include_internals UNUSED,
 		GtkCallback	callback,
 		gpointer	callback_data)
 {
@@ -786,9 +784,8 @@
  * them or discards them, depending on whether we are obscured
  * or not.
  */
-/*ARGSUSED1*/
     static GdkFilterReturn
-gtk_form_filter(GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
+gtk_form_filter(GdkXEvent *gdk_xevent, GdkEvent *event UNUSED, gpointer data)
 {
     XEvent *xevent;
     GtkForm *form;
@@ -821,9 +818,10 @@
  * there is no corresponding event in GTK, so we have
  * to get the events from a filter
  */
-/*ARGSUSED1*/
     static GdkFilterReturn
-gtk_form_main_filter(GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
+gtk_form_main_filter(GdkXEvent *gdk_xevent,
+		     GdkEvent *event UNUSED,
+		     gpointer data)
 {
     XEvent *xevent;
     GtkForm *form;
@@ -911,9 +909,8 @@
 #endif
 }
 
-/*ARGSUSED0*/
     static void
-gtk_form_child_map(GtkWidget *widget, gpointer user_data)
+gtk_form_child_map(GtkWidget *widget UNUSED, gpointer user_data)
 {
     GtkFormChild *child;
 
@@ -923,9 +920,8 @@
     gdk_window_show(child->window);
 }
 
-/*ARGSUSED0*/
     static void
-gtk_form_child_unmap(GtkWidget *widget, gpointer user_data)
+gtk_form_child_unmap(GtkWidget *widget UNUSED, gpointer user_data)
 {
     GtkFormChild *child;
 
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index cd65557..d7f5103 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -619,9 +619,10 @@
  * Doesn't seem possible, since check_copy_area() relies on
  * this information.  --danielk
  */
-/*ARGSUSED*/
     static gint
-visibility_event(GtkWidget *widget, GdkEventVisibility *event, gpointer data)
+visibility_event(GtkWidget *widget UNUSED,
+		 GdkEventVisibility *event,
+		 gpointer data UNUSED)
 {
     gui.visibility = event->state;
     /*
@@ -638,9 +639,10 @@
 /*
  * Redraw the corresponding portions of the screen.
  */
-/*ARGSUSED*/
     static gint
-expose_event(GtkWidget *widget, GdkEventExpose *event, gpointer data)
+expose_event(GtkWidget *widget UNUSED,
+	     GdkEventExpose *event,
+	     gpointer data UNUSED)
 {
     /* Skip this when the GUI isn't set up yet, will redraw later. */
     if (gui.starting)
@@ -668,9 +670,10 @@
 /*
  * Handle changes to the "Comm" property
  */
-/*ARGSUSED2*/
     static gint
-property_event(GtkWidget *widget, GdkEventProperty *event, gpointer data)
+property_event(GtkWidget *widget,
+	       GdkEventProperty *event,
+	       gpointer data UNUSED)
 {
     if (event->type == GDK_PROPERTY_NOTIFY
 	    && event->state == (int)GDK_PROPERTY_NEW_VALUE
@@ -740,9 +743,8 @@
     blink_state = BLINK_NONE;
 }
 
-/*ARGSUSED*/
     static gint
-blink_cb(gpointer data)
+blink_cb(gpointer data UNUSED)
 {
     if (blink_state == BLINK_ON)
     {
@@ -781,9 +783,10 @@
     }
 }
 
-/*ARGSUSED*/
     static gint
-enter_notify_event(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
+enter_notify_event(GtkWidget *widget UNUSED,
+		   GdkEventCrossing *event UNUSED,
+		   gpointer data UNUSED)
 {
     if (blink_state == BLINK_NONE)
 	gui_mch_start_blink();
@@ -795,9 +798,10 @@
     return FALSE;
 }
 
-/*ARGSUSED*/
     static gint
-leave_notify_event(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
+leave_notify_event(GtkWidget *widget UNUSED,
+		   GdkEventCrossing *event UNUSED,
+		   gpointer data UNUSED)
 {
     if (blink_state != BLINK_NONE)
 	gui_mch_stop_blink();
@@ -805,9 +809,10 @@
     return FALSE;
 }
 
-/*ARGSUSED*/
     static gint
-focus_in_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
+focus_in_event(GtkWidget *widget,
+	       GdkEventFocus *event UNUSED,
+	       gpointer data UNUSED)
 {
     gui_focus_change(TRUE);
 
@@ -826,9 +831,10 @@
     return TRUE;
 }
 
-/*ARGSUSED*/
     static gint
-focus_out_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
+focus_out_event(GtkWidget *widget UNUSED,
+	        GdkEventFocus *event UNUSED,
+		gpointer data UNUSED)
 {
     gui_focus_change(FALSE);
 
@@ -956,9 +962,10 @@
 /*
  * Main keyboard handler:
  */
-/*ARGSUSED*/
     static gint
-key_press_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
+key_press_event(GtkWidget *widget UNUSED,
+		GdkEventKey *event,
+		gpointer data UNUSED)
 {
 #ifdef HAVE_GTK2
     /* 256 bytes is way over the top, but for safety let's reduce it only
@@ -1225,9 +1232,10 @@
 }
 
 #if defined(FEAT_XIM) && defined(HAVE_GTK2)
-/*ARGSUSED0*/
     static gboolean
-key_release_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
+key_release_event(GtkWidget *widget UNUSED,
+		  GdkEventKey *event,
+		  gpointer data UNUSED)
 {
     /*
      * GTK+ 2 input methods may do fancy stuff on key release events too.
@@ -1243,11 +1251,10 @@
  * Selection handlers:
  */
 
-/*ARGSUSED*/
     static gint
-selection_clear_event(GtkWidget		*widget,
+selection_clear_event(GtkWidget		*widget UNUSED,
 		      GdkEventSelection	*event,
-		      gpointer		user_data)
+		      gpointer		user_data UNUSED)
 {
     if (event->selection == clip_plus.gtk_sel_atom)
 	clip_lose_selection(&clip_plus);
@@ -1265,12 +1272,11 @@
 #define RS_FAIL	2	/* selection_received_cb() called and failed */
 static int received_selection = RS_NONE;
 
-/*ARGSUSED*/
     static void
-selection_received_cb(GtkWidget		*widget,
+selection_received_cb(GtkWidget		*widget UNUSED,
 		      GtkSelectionData	*data,
-		      guint		time_,
-		      gpointer		user_data)
+		      guint		time_ UNUSED,
+		      gpointer		user_data UNUSED)
 {
     VimClipboard    *cbd;
     char_u	    *text;
@@ -1414,13 +1420,12 @@
  * Prepare our selection data for passing it to the external selection
  * client.
  */
-/*ARGSUSED*/
     static void
-selection_get_cb(GtkWidget	    *widget,
+selection_get_cb(GtkWidget	    *widget UNUSED,
 		 GtkSelectionData   *selection_data,
 		 guint		    info,
-		 guint		    time_,
-		 gpointer	    user_data)
+		 guint		    time_ UNUSED,
+		 gpointer	    user_data UNUSED)
 {
     char_u	    *string;
     char_u	    *tmpbuf;
@@ -1678,7 +1683,7 @@
 
 	offshoot = dx > dy ? dx : dy;
 
-	/* Make a linearly declaying timer delay with a threshold of 5 at a
+	/* Make a linearly decaying timer delay with a threshold of 5 at a
 	 * distance of 127 pixels from the main window.
 	 *
 	 * One could think endlessly about the most ergonomic variant here.
@@ -1707,9 +1712,8 @@
 /*
  * Timer used to recognize multiple clicks of the mouse button.
  */
-/*ARGSUSED0*/
     static gint
-motion_repeat_timer_cb(gpointer data)
+motion_repeat_timer_cb(gpointer data UNUSED)
 {
     int		    x;
     int		    y;
@@ -1749,9 +1753,10 @@
     return FALSE;
 }
 
-/*ARGSUSED2*/
     static gint
-motion_notify_event(GtkWidget *widget, GdkEventMotion *event, gpointer data)
+motion_notify_event(GtkWidget *widget,
+		    GdkEventMotion *event,
+		    gpointer data UNUSED)
 {
     if (event->is_hint)
     {
@@ -1777,9 +1782,10 @@
  * by our own timeout mechanism instead of the one provided by GTK+ itself.
  * This is due to the way the generic VIM code is recognizing multiple clicks.
  */
-/*ARGSUSED2*/
     static gint
-button_press_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
+button_press_event(GtkWidget *widget,
+		   GdkEventButton *event,
+		   gpointer data UNUSED)
 {
     int button;
     int repeated_click = FALSE;
@@ -1855,9 +1861,10 @@
  * GTK+ 2 doesn't handle mouse buttons 4, 5, 6 and 7 the same way as GTK+ 1.
  * Instead, it abstracts scrolling via the new GdkEventScroll.
  */
-/*ARGSUSED2*/
     static gboolean
-scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data)
+scroll_event(GtkWidget *widget,
+	     GdkEventScroll *event,
+	     gpointer data UNUSED)
 {
     int	    button;
     int_u   vim_modifiers;
@@ -1896,9 +1903,10 @@
 #endif /* HAVE_GTK2 */
 
 
-/*ARGSUSED*/
     static gint
-button_release_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
+button_release_event(GtkWidget *widget UNUSED,
+		     GdkEventButton *event,
+		     gpointer data UNUSED)
 {
     int x, y;
     int_u vim_modifiers;
@@ -2100,7 +2108,6 @@
 /*
  * DND receiver.
  */
-/*ARGSUSED2*/
     static void
 drag_data_received_cb(GtkWidget		*widget,
 		      GdkDragContext	*context,
@@ -2109,7 +2116,7 @@
 		      GtkSelectionData	*data,
 		      guint		info,
 		      guint		time_,
-		      gpointer		user_data)
+		      gpointer		user_data UNUSED)
 {
     GdkModifierType state;
 
@@ -2143,7 +2150,6 @@
  * be abandoned and pop up a dialog asking the user for confirmation if
  * necessary.
  */
-/*ARGSUSED0*/
     static void
 sm_client_check_changed_any(GnomeClient	    *client,
 			    gint	    key,
@@ -2251,7 +2257,6 @@
  * for confirmation if necessary.  Save the current editing session and tell
  * the session manager how to restart Vim.
  */
-/*ARGSUSED1*/
     static gboolean
 sm_client_save_yourself(GnomeClient	    *client,
 			gint		    phase,
@@ -2339,7 +2344,6 @@
  * here since "save_yourself" has been emitted before (unless serious trouble
  * is happening).
  */
-/*ARGSUSED0*/
     static void
 sm_client_die(GnomeClient *client, gpointer data)
 {
@@ -2379,10 +2383,9 @@
 /*
  * GTK tells us that XSMP needs attention
  */
-/*ARGSUSED*/
     static gboolean
 local_xsmp_handle_requests(source, condition, data)
-    GIOChannel		*source;
+    GIOChannel		*source UNUSED;
     GIOCondition	condition;
     gpointer		data;
 {
@@ -2480,16 +2483,18 @@
  * WM_SAVE_YOURSELF hack it actually stores the session...  And yes,
  * it should work with KDE as well.
  */
-/*ARGSUSED1*/
     static GdkFilterReturn
-global_event_filter(GdkXEvent *xev, GdkEvent *event, gpointer data)
+global_event_filter(GdkXEvent *xev,
+		    GdkEvent *event UNUSED,
+		    gpointer data UNUSED)
 {
     XEvent *xevent = (XEvent *)xev;
 
     if (xevent != NULL
 	    && xevent->type == ClientMessage
 	    && xevent->xclient.message_type == GET_X_ATOM(wm_protocols_atom)
-	    && xevent->xclient.data.l[0] == GET_X_ATOM(save_yourself_atom))
+	    && (long_u)xevent->xclient.data.l[0]
+					    == GET_X_ATOM(save_yourself_atom))
     {
 	out_flush();
 	ml_sync_all(FALSE, FALSE); /* preserve all swap files */
@@ -2512,7 +2517,6 @@
 /*
  * GDK handler for X ClientMessage events.
  */
-/*ARGSUSED2*/
     static GdkFilterReturn
 gdk_wm_protocols_filter(GdkXEvent *xev, GdkEvent *event, gpointer data)
 {
@@ -2558,9 +2562,8 @@
 /*
  * Setup the window icon & xcmdsrv comm after the main window has been realized.
  */
-/*ARGSUSED*/
     static void
-mainwin_realize(GtkWidget *widget, gpointer data)
+mainwin_realize(GtkWidget *widget UNUSED, gpointer data UNUSED)
 {
 /* If you get an error message here, you still need to unpack the runtime
  * archive! */
@@ -2712,11 +2715,10 @@
 }
 
 #ifdef HAVE_GTK_MULTIHEAD
-/*ARGSUSED1*/
     static void
 mainwin_screen_changed_cb(GtkWidget  *widget,
-			  GdkScreen  *previous_screen,
-			  gpointer   data)
+			  GdkScreen  *previous_screen UNUSED,
+			  gpointer   data UNUSED)
 {
     if (!gtk_widget_has_screen(widget))
 	return;
@@ -2757,9 +2759,8 @@
  * Don't try to set any VIM scrollbar sizes anywhere here. I'm relying on the
  * fact that the main VIM engine doesn't take them into account anywhere.
  */
-/*ARGSUSED1*/
     static void
-drawarea_realize_cb(GtkWidget *widget, gpointer data)
+drawarea_realize_cb(GtkWidget *widget, gpointer data UNUSED)
 {
     GtkWidget *sbar;
 
@@ -2789,9 +2790,8 @@
 /*
  * Properly clean up on shutdown.
  */
-/*ARGSUSED0*/
     static void
-drawarea_unrealize_cb(GtkWidget *widget, gpointer data)
+drawarea_unrealize_cb(GtkWidget *widget UNUSED, gpointer data UNUSED)
 {
     /* Don't write messages to the GUI anymore */
     full_screen = FALSE;
@@ -2827,11 +2827,10 @@
 #endif
 }
 
-/*ARGSUSED0*/
     static void
-drawarea_style_set_cb(GtkWidget	*widget,
-		      GtkStyle	*previous_style,
-		      gpointer	data)
+drawarea_style_set_cb(GtkWidget	*widget UNUSED,
+		      GtkStyle	*previous_style UNUSED,
+		      gpointer	data UNUSED)
 {
     gui_mch_new_colors();
 }
@@ -2840,9 +2839,10 @@
  * Callback routine for the "delete_event" signal on the toplevel window.
  * Tries to vim gracefully, or refuses to exit with changed buffers.
  */
-/*ARGSUSED*/
     static gint
-delete_event_cb(GtkWidget *widget, GdkEventAny *event, gpointer data)
+delete_event_cb(GtkWidget *widget UNUSED,
+		GdkEventAny *event UNUSED,
+		gpointer data UNUSED)
 {
     gui_shell_closed();
     return TRUE;
@@ -2964,7 +2964,7 @@
 
     /* At start-up, don't try to set the hints until the initial
      * values have been used (those that dictate our initial size)
-     * Let forced (i.e., correct) values thruogh always.
+     * Let forced (i.e., correct) values through always.
      */
     if (!(force_width && force_height)  &&  init_window_hints_state > 0)
     {
@@ -3142,9 +3142,8 @@
 /*
  * Handle selecting an item in the tab line popup menu.
  */
-/*ARGSUSED*/
     static void
-tabline_menu_handler(GtkMenuItem *item, gpointer user_data)
+tabline_menu_handler(GtkMenuItem *item UNUSED, gpointer user_data)
 {
     /* Add the string cmd into input buffer */
     send_tabline_menu_event(clicked_page, (int)(long)user_data);
@@ -3244,13 +3243,12 @@
 /*
  * Handle selecting one of the tabs.
  */
-/*ARGSUSED*/
     static void
 on_select_tab(
-	GtkNotebook	*notebook,
-	GtkNotebookPage *page,
+	GtkNotebook	*notebook UNUSED,
+	GtkNotebookPage *page UNUSED,
 	gint		idx,
-	gpointer	data)
+	gpointer	data UNUSED)
 {
     if (!ignore_tabline_evt)
     {
@@ -3784,7 +3782,7 @@
 #endif
 
     if (gtk_socket_id != 0)
-	/* make sure keybord input can go to the drawarea */
+	/* make sure keyboard input can go to the drawarea */
 	GTK_WIDGET_SET_FLAGS(gui.drawarea, GTK_CAN_FOCUS);
 
     /*
@@ -3922,10 +3920,10 @@
 /*
  * This signal informs us about the need to rearrange our sub-widgets.
  */
-/*ARGSUSED*/
     static gint
-form_configure_event(GtkWidget *widget, GdkEventConfigure *event,
-		     gpointer data)
+form_configure_event(GtkWidget *widget UNUSED,
+		     GdkEventConfigure *event,
+		     gpointer data UNUSED)
 {
     int usable_height = event->height;
 
@@ -3948,9 +3946,8 @@
  * We can't do much more here than to trying to preserve what had been done,
  * since the window is already inevitably going away.
  */
-/*ARGSUSED0*/
     static void
-mainwin_destroy_cb(GtkObject *object, gpointer data)
+mainwin_destroy_cb(GtkObject *object UNUSED, gpointer data UNUSED)
 {
     /* Don't write messages to the GUI anymore */
     full_screen = FALSE;
@@ -3980,9 +3977,8 @@
  * scrollbar init.), actually do the standard hinst and stop the timer.
  * We'll not let the default hints be set while this timer's active.
  */
-/*ARGSUSED*/
     static gboolean
-check_startup_plug_hints(gpointer data)
+check_startup_plug_hints(gpointer data UNUSED)
 {
     if (init_window_hints_state == 1)
     {
@@ -4055,7 +4051,7 @@
 	    Columns = w;
 	if (mask & HeightValue)
 	{
-	    if (p_window > h - 1 || !option_was_set((char_u *)"window"))
+	    if (p_window > (long)h - 1 || !option_was_set((char_u *)"window"))
 		p_window = h - 1;
 	    Rows = h;
 	}
@@ -4229,9 +4225,8 @@
 }
 
 
-/*ARGSUSED0*/
     void
-gui_mch_exit(int rc)
+gui_mch_exit(int rc UNUSED)
 {
     if (gui.mainwin != NULL)
 	gtk_widget_destroy(gui.mainwin);
@@ -4286,7 +4281,6 @@
  * report the new size through form_configure_event().  That caused the window
  * layout to be messed up.
  */
-/*ARGSUSED0*/
     static gboolean
 force_shell_resize_idle(gpointer data)
 {
@@ -4314,12 +4308,11 @@
 /*
  * Set the windows size.
  */
-/*ARGSUSED2*/
     void
 gui_mch_set_shellsize(int width, int height,
-		      int min_width,  int min_height,
-		      int base_width, int base_height,
-		      int direction)
+		      int min_width UNUSED,  int min_height UNUSED,
+		      int base_width UNUSED, int base_height UNUSED,
+		      int direction UNUSED)
 {
 #ifndef HAVE_GTK2
     /* Hack: When the form already is at the desired size, the window might
@@ -4413,9 +4406,8 @@
 }
 
 #if defined(FEAT_TITLE) || defined(PROTO)
-/*ARGSUSED*/
     void
-gui_mch_settitle(char_u *title, char_u *icon)
+gui_mch_settitle(char_u *title, char_u *icon UNUSED)
 {
 # ifdef HAVE_GTK2
     if (title != NULL && output_conv.vc_type != CONV_NONE)
@@ -4493,7 +4485,6 @@
  * Get a font structure for highlighting.
  * "cbdata" is a pointer to the global gui structure.
  */
-/*ARGSUSED*/
     static void
 font_sel_ok(GtkWidget *wgt, gpointer cbdata)
 {
@@ -4509,7 +4500,6 @@
 	gtk_main_quit();
 }
 
-/*ARGSUSED*/
     static void
 font_sel_cancel(GtkWidget *wgt, gpointer cbdata)
 {
@@ -4520,7 +4510,6 @@
 	gtk_main_quit();
 }
 
-/*ARGSUSED*/
     static void
 font_sel_destroy(GtkWidget *wgt, gpointer cbdata)
 {
@@ -4620,7 +4609,6 @@
 /*
  * Try to load the requested fontset.
  */
-/*ARGSUSED2*/
     GuiFontset
 gui_mch_get_fontset(char_u *name, int report_error, int fixed_width)
 {
@@ -4863,7 +4851,7 @@
     styled_font[1] = &gui.ital_font;
     styled_font[2] = &gui.boldital_font;
 
-    /* First free whatever was freviously there. */
+    /* First free whatever was previously there. */
     for (i = 0; i < 3; ++i)
 	if (*styled_font[i])
 	{
@@ -5012,9 +5000,8 @@
  * Initialize Vim to use the font or fontset with the given name.
  * Return FAIL if the font could not be loaded, OK otherwise.
  */
-/*ARGSUSED1*/
     int
-gui_mch_init_font(char_u *font_name, int fontset)
+gui_mch_init_font(char_u *font_name, int fontset UNUSED)
 {
 #ifdef HAVE_GTK2
     PangoFontDescription    *font_desc;
@@ -5326,9 +5313,8 @@
 /*
  * Return the name of font "font" in allocated memory.
  */
-/*ARGSUSED*/
     char_u *
-gui_mch_get_fontname(GuiFont font, char_u *name)
+gui_mch_get_fontname(GuiFont font, char_u *name UNUSED)
 {
 # ifdef HAVE_GTK2
     if (font != NOFONT)
@@ -5732,7 +5718,7 @@
 {
     int			i;
     int			offset;
-    const static int	val[8] = {1, 0, 0, 0, 1, 2, 2, 2 };
+    static const int	val[8] = {1, 0, 0, 0, 1, 2, 2, 2 };
     int			y = FILL_Y(row + 1) - 1;
 
     /* Undercurl: draw curl at the bottom of the character cell. */
@@ -6402,7 +6388,6 @@
 /*
  * Callback function, used when data is available on the SNiFF connection.
  */
-/* ARGSUSED */
     static void
 sniff_request_cb(
     gpointer	data,
@@ -6711,9 +6696,8 @@
 /*
  * Disown the selection.
  */
-/*ARGSUSED*/
     void
-clip_mch_lose_selection(VimClipboard *cbd)
+clip_mch_lose_selection(VimClipboard *cbd UNUSED)
 {
     /* WEIRD: when using NULL to actually disown the selection, we lose the
      * selection the first time we own it. */
@@ -6741,9 +6725,8 @@
  * Send the current selection to the clipboard.  Do nothing for X because we
  * will fill in the selection only when requested by another app.
  */
-/*ARGSUSED*/
     void
-clip_mch_set_selection(VimClipboard *cbd)
+clip_mch_set_selection(VimClipboard *cbd UNUSED)
 {
 }
 
@@ -6950,7 +6933,7 @@
 	    else
 		id &= ~1;	/* they are always even (why?) */
 	}
-	else if (shape < sizeof(mshape_ids) / sizeof(int))
+	else if (shape < (int)(sizeof(mshape_ids) / sizeof(int)))
 	    id = mshape_ids[shape];
 	else
 	    return;
diff --git a/src/if_mzsch.c b/src/if_mzsch.c
index 28bf53d..7f43cab 100644
--- a/src/if_mzsch.c
+++ b/src/if_mzsch.c
@@ -667,13 +667,11 @@
     static void CALLBACK
 timer_proc(HWND hwnd, UINT uMsg, UINT idEvent, DWORD dwTime)
 # elif defined(FEAT_GUI_GTK)
-/*ARGSUSED*/
     static gint
-timer_proc(gpointer data)
+timer_proc(gpointer data UNUSED)
 # elif defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA)
-/* ARGSUSED */
     static void
-timer_proc(XtPointer timed_out, XtIntervalId *interval_id)
+timer_proc(XtPointer timed_out UNUSED, XtIntervalId *interval_id UNUSED)
 # elif defined(FEAT_GUI_MAC)
     pascal void
 timer_proc(EventLoopTimerRef theTimer, void *userData)
diff --git a/src/netbeans.c b/src/netbeans.c
index d3a5c59..d7badae 100644
--- a/src/netbeans.c
+++ b/src/netbeans.c
@@ -700,7 +700,6 @@
 /*
  * Read and process a command from netbeans.
  */
-/*ARGSUSED*/
 #if defined(FEAT_GUI_W32) || defined(PROTO)
 /* Use this one when generating prototypes, the others are static. */
     void
@@ -708,12 +707,15 @@
 #else
 # ifdef FEAT_GUI_MOTIF
     static void
-messageFromNetbeans(XtPointer clientData, int *unused1, XtInputId *unused2)
+messageFromNetbeans(XtPointer clientData UNUSED
+		    int *unused1 UNUSED,
+		    XtInputId *unused2 UNUSED)
 # endif
 # ifdef FEAT_GUI_GTK
     static void
-messageFromNetbeans(gpointer clientData, gint unused1,
-						    GdkInputCondition unused2)
+messageFromNetbeans(gpointer clientData UNUSED,
+		    gint unused1 UNUSED,
+		    GdkInputCondition unused2 UNUSED)
 # endif
 #endif
 {
@@ -1585,7 +1587,9 @@
 			    buf_delsign(buf->bufp, id);
 			}
 			else
+			{
 			    nbdebug(("    No sign on line %d\n", i));
+			}
 		    }
 
 		    nbdebug(("    Deleting lines %d through %d\n", del_from_lnum, del_to_lnum));
@@ -2144,7 +2148,9 @@
 #endif
 	    }
 	    else
+	    {
 		nbdebug(("    BAD POSITION in setDot: %s\n", s));
+	    }
 
 	    /* gui_update_cursor(TRUE, FALSE); */
 	    /* update_curbuf(NOT_VALID); */
@@ -2744,11 +2750,10 @@
  * cursor and sends it to the debugger for evaluation.  The debugger should
  * respond with a showBalloon command when there is a useful result.
  */
-/*ARGSUSED*/
     void
 netbeans_beval_cb(
 	BalloonEval	*beval,
-	int		 state)
+	int		 state UNUSED)
 {
     win_T	*wp;
     char_u	*text;
@@ -3061,9 +3066,8 @@
 /*
  * Send netbeans an unmodufied command.
  */
-/*ARGSUSED*/
     void
-netbeans_unmodified(buf_T *bufp)
+netbeans_unmodified(buf_T *bufp UNUSED)
 {
 #if 0
     char_u	buf[128];
@@ -3370,13 +3374,12 @@
  * buf->signmapused[]	maps buffer-local annotation IDs to an index in
  *			globalsignmap[].
  */
-/*ARGSUSED*/
     static void
 addsigntype(
     nbbuf_T	*buf,
     int		typeNum,
     char_u	*typeName,
-    char_u	*tooltip,
+    char_u	*tooltip UNUSED,
     char_u	*glyphFile,
     int		use_fg,
     int		fg,
diff --git a/src/version.c b/src/version.c
index 9047cbe..24b23b0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -677,6 +677,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    181,
+/**/
     180,
 /**/
     179,