Fix compiler warnings (original patches from Enrico Tröger)

Add missing include for geteuid() missing declaration
xtm_process_window_show_swap_usage() in process-window.
Fix various compiler warnings from main.c task-manager.c and
app-manager.c.

src/app-manager.c

@@ -56,8 +56,6 @@ xtm_app_manager_init (XtmAppManager *manager)
 {
 	WnckScreen *screen = wnck_screen_get_default ();
 	GList *windows, *l;
-	gint i;
-	App app;
 
 	/* Retrieve initial applications */
 	while (gtk_events_pending ())
@@ -123,9 +121,8 @@ apps_add_application (GArray *apps, WnckApplication *application)
 static void
 apps_remove_application (GArray *apps, WnckApplication *application)
 {
-	App *app;
-	gint pid;
-	gint i;
+	App *app = NULL;
+	guint i;
 
 	for (i = 0; i < apps->len; i++)
 	{
@@ -134,20 +131,23 @@ apps_remove_application (GArray *apps, WnckApplication *application)
 			break;
 	}
 
-	g_object_unref (app->icon);
-	g_array_remove_index (apps, i);
+	if (app != NULL)
+	{
+		g_object_unref (app->icon);
+		g_array_remove_index (apps, i);
+	}
 }
 
 static App *
 apps_lookup_pid (GArray *apps, gint pid)
 {
 	App *app;
-	gint i;
+	guint i;
 
 	for (app = NULL, i = 0; i < apps->len; i++)
 	{
 		app = &g_array_index (apps, App, i);
-		if (app->pid == pid)
+		if (app->pid == (guint)pid)
 			break;
 		app = NULL;
 	}
@@ -176,7 +176,7 @@ application_closed (WnckScreen *screen, WnckApplication *application, XtmAppMana
 
 
 XtmAppManager *
-xtm_app_manager_new ()
+xtm_app_manager_new (void)
 {
 	return g_object_new (XTM_TYPE_APP_MANAGER, NULL);
 }

src/main.c

@@ -26,7 +26,7 @@ static XtmTaskManager *task_manager;
 static gboolean timeout = 0;
 
 static void
-status_icon_activated ()
+status_icon_activated (void)
 {
 	if (!(GTK_WIDGET_VISIBLE (window)))
 		gtk_widget_show (window);
@@ -35,7 +35,7 @@ status_icon_activated ()
 }
 
 static void
-show_hide_status_icon ()
+show_hide_status_icon (void)
 {
 	gboolean show_status_icon;
 	g_object_get (settings, "show-status-icon", &show_status_icon, NULL);
@@ -96,7 +96,7 @@ force_timeout_update (void)
 }
 
 static void
-refresh_rate_changed (XtmSettings *settings)
+refresh_rate_changed (void)
 {
 	if (!g_source_remove (timeout))
 	{

src/process-window.c

@@ -11,6 +11,10 @@
 #include <config.h>
 #endif
 
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
 #include <glib-object.h>
 #include <glib/gi18n.h>
 #include <gtk/gtk.h>

src/process-window.h

@@ -30,5 +30,6 @@ GType		xtm_process_window_get_type			(void);
 GtkWidget *	xtm_process_window_new				();
 GtkTreeModel *	xtm_process_window_get_model			(XtmProcessWindow *window);
 void		xtm_process_window_set_system_info		(XtmProcessWindow *window, guint num_processes, gfloat cpu, gfloat memory, gfloat swap);
+void		xtm_process_window_show_swap_usage		(XtmProcessWindow *window, gboolean show_swap_usage);
 
 #endif /* !PROCESS_WINDOW_H */

src/task-manager.c

@@ -364,11 +364,11 @@ model_find_tree_iter_for_pid (GtkTreeModel *model, guint pid, GtkTreeIter *iter)
 }
 
 static glong
-__current_timestamp ()
+__current_timestamp (void)
 {
-	GTimeVal time;
-	g_get_current_time (&time);
-	return time.tv_sec;
+	GTimeVal current_time;
+	g_get_current_time (&current_time);
+	return current_time.tv_sec;
 }
 
 
@@ -609,9 +609,6 @@ xtm_task_manager_update_model (XtmTaskManager *manager)
 
 		if (found == FALSE)
 		{
-#if DEBUG
-			g_debug ("Add new task %d %s", tasktmp->pid, tasktmp->name);
-#endif
 #ifdef HAVE_WNCK
 			App *app = xtm_app_manager_get_app_from_pid (manager->app_manager, tasktmp->pid);
 			model_add_task (manager->model, tasktmp, app, __current_timestamp ());
@@ -619,6 +616,9 @@ xtm_task_manager_update_model (XtmTaskManager *manager)
 			model_add_task (manager->model, tasktmp, __current_timestamp ());
 #endif
 			g_array_append_val (manager->tasks, *tasktmp);
+#if DEBUG
+			g_debug ("Add new task %d %s", tasktmp->pid, tasktmp->name);
+#endif
 		}
 	}