Remove set but unread variables

- Adding a sensor in the mbmon support stored the added sensor in a
  pointer but never used it afterwards
- Drop pixbuf width in draw_left_frame_overlap, the code unlike other
  drawing helpers does not use the pixbuf width
- Remove unused scroll selection from net_stats_page

This fixes several set but unread warnings when compiling with a recent
gcc (encountered with gcc 4.8.2).

src/cpu.c

@@ -540,12 +540,10 @@ cb_cpu_extra(GtkWidget *widget, GdkEventButton *ev)
 	{
 	GList			*list;
 	CpuMon			*cpu;
-	GkrellmChart	*cp;
 
 	for (list = cpu_mon_list; list; list = list->next)
 		{
 		cpu = (CpuMon *) list->data;
-		cp = cpu->chart;
 		if (widget != cpu->chart->drawing_area)
 			continue;
 		if (ev->button == 1 && ev->type == GDK_BUTTON_PRESS)
@@ -968,12 +966,10 @@ static void
 create_alert(void)
 	{
 	GList		*list;
-	CpuMon		*cpu;
 
 	list = g_list_nth(cpu_mon_list, 0);
 	if (!list)
 		return;
-	cpu = (CpuMon *) list->data;
 	cpu_alert = gkrellm_alert_create(NULL, _("CPU"),
 					_("Percent Usage"),
 					TRUE, FALSE, TRUE,

src/fs.c

@@ -1034,7 +1034,6 @@ cb_panel_motion(GtkWidget *widget, GdkEventButton *ev)
 	GList			*list;
 	FSmon			*fs;
 	GkrellmDecal	*d;
-	PangoFontDescription *font_desc;
 	gchar			buf[128];
 	gint			w, x_delta	= 0;
 
@@ -1047,7 +1046,6 @@ cb_panel_motion(GtkWidget *widget, GdkEventButton *ev)
 		fs_in_motion = NULL;
 		return FALSE;
 		}
-	font_desc = gkrellm_meter_alt_textstyle(style_id)->font;
 
 	d = fs_in_motion->data_decal;
 	format_fs_data(fs_in_motion, data_format_locale, buf, sizeof(buf));
@@ -2201,15 +2199,10 @@ row_drop_possible(GtkTreeDragDest *drag_dest, GtkTreePath *path,
 			GtkSelectionData *selection_data)
 	{
 	GtkTreePath	*src_path;
-	gint		*indices;
 
 	if (!row_reference)
 		return FALSE;
 	src_path = gtk_tree_row_reference_get_path(row_reference);
-	indices = gtk_tree_path_get_indices(path);
-//	g_debug("drop path: indices=[%d,%d]:%d, path=%s\n",
-//			indices[0], indices[1], gtk_tree_path_get_depth(path),
-//			gtk_tree_path_to_string(path));
 
 	if (   gtk_tree_path_get_depth(src_path) == 1
 		|| gtk_tree_path_get_depth(path) != 2

src/inet.c

@@ -520,7 +520,6 @@ static void
 update_inet(void)
 	{
 	InetMon			*in;
-	GkrellmChart	*cp;
 	ActiveTCP		*tcp;
 	GList			*list;
 	gchar			buf[32], *ap;
@@ -575,7 +574,6 @@ update_inet(void)
 	for (list = inet_mon_list; list; list = list->next)
 		{
 		in = (InetMon *) list->data;
-		cp = in->chart;
 		if (GK.hour_tick)
 			{
 			if (!*in->label0)

src/main.c

@@ -979,11 +979,10 @@ draw_left_frame_overlap(GdkPixbuf *pixbuf, GkrellmBorder *border,
 	GkrellmPiximage		piximage;
 	GdkPixmap			*pixmap = NULL;
 	GdkBitmap			*mask = NULL;
-	gint				w_pixbuf, h_pixbuf;
+	gint				h_pixbuf;
 
 	if (overlap <= 0)
 		return;
-	w_pixbuf = gdk_pixbuf_get_width(pixbuf);
 	h_pixbuf = gdk_pixbuf_get_height(pixbuf);
 	piximage.pixbuf = gdk_pixbuf_new_subpixbuf(pixbuf, 0, 0,
 						overlap, h_pixbuf);

src/net.c

@@ -670,7 +670,6 @@ net_stats_page(GtkWidget *vbox, NetMon *net,
 	{
 	GtkTreeView			*treeview;
 	GtkTreeModel		*model;
-	GtkTreeSelection	*selection;
 	GtkCellRenderer		*renderer;
 	gint				i;
 
@@ -704,7 +703,7 @@ net_stats_page(GtkWidget *vbox, NetMon *net,
 					renderer, "text", TIME_COLUMN, NULL);
 			break;
 			}
-	selection = gkrellm_gtk_scrolled_selection(treeview, vbox,
+	gkrellm_gtk_scrolled_selection(treeview, vbox,
 			GTK_SELECTION_NONE,
 			GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC,
 			NULL, NULL);

src/plugins.c

@@ -1512,7 +1512,6 @@ cb_place_button(GtkWidget *widget, gpointer data)
 	GSList			*group;
 	GList			*list;
 	GkrellmMonitor	*mon;
-	GkrellmMonprivate *mp;
 	gint			i;
 
 	if (gkrellm_demo_mode())
@@ -1540,7 +1539,6 @@ cb_place_button(GtkWidget *widget, gpointer data)
 		for (i = 0, list = gkrellm_monitor_list; list; list = list->next)
 			{
 			mon = (GkrellmMonitor *) list->data;
-			mp  = mon->privat;
 			mon->privat->button_id = -1;
 			if (MONITOR_ID(mon) != MON_PLUGIN)
 				{

src/sensors.c

@@ -2333,7 +2333,6 @@ static void
 create_location_menu(gint group)
 	{
 	gint		n, n_cpus;
-	static gint	sig_id;
 
 	if (group == sensor_last_group)
 		return;
@@ -2357,7 +2356,7 @@ create_location_menu(gint group)
 		{
                     gtk_combo_box_append_text(GTK_COMBO_BOX(optionmenu), _("Disk"));
 		}
-	sig_id = g_signal_connect(G_OBJECT(optionmenu), "changed",
+	g_signal_connect(G_OBJECT(optionmenu), "changed",
 				G_CALLBACK(cb_location_menu), NULL);
 	}
 
@@ -2437,7 +2436,7 @@ cb_tree_selection_changed(GtkTreeSelection *selection, gpointer data)
 	GtkTreeModel	*model;
 	GtkTreePath		*path;
 	Sensor			*s;
-	gint            *indices, depth;
+	gint            depth;
 
 	if (!gtk_tree_selection_get_selected(selection, &model, &iter))
 		{
@@ -2446,11 +2445,7 @@ cb_tree_selection_changed(GtkTreeSelection *selection, gpointer data)
 		return;
 		}
 	path = gtk_tree_model_get_path(model, &iter);
-	indices = gtk_tree_path_get_indices(path);
 	depth = gtk_tree_path_get_depth(path);
-//g_debug("selection: indices=[%d,%d]:%d, path=%s\n",
-//		indices[0], indices[1], gtk_tree_path_get_depth(path),
-//		gtk_tree_path_to_string(path));
     change_row_reference(model, path);
     gtk_tree_path_free(path);
 

src/sysdeps/sensors-common.c

@@ -130,7 +130,6 @@ static gboolean
 mbmon_daemon_read(void)
 	{
 	gchar				*server = "127.0.0.1";
-	gpointer			sr;
 	MbmonSensor			*mb;
 	gchar				*default_label, *id_name;
 	gchar				name[32], buf[256];
@@ -193,7 +192,7 @@ mbmon_daemon_read(void)
 			mb->name = g_strdup(name);
 			default_label = name;
 			id_name = g_strdup_printf("mbmon/%s", name);
-			sr = gkrellm_sensors_add_sensor(type,
+			gkrellm_sensors_add_sensor(type,
 						name, id_name,
 						0, 0, MBMON_INTERFACE,
 						1.0, 0.0, NULL, default_label);