Fix deprecations and compile warnings. Clean compile

12 files changed, 87 insertions, 30 deletions

diff --git a/src/compositor/compositor-xrender.c b/src/compositor/compositor-xrender.c
index f013eac8..805002e3 100644
--- a/src/compositor/compositor-xrender.c
+++ b/src/compositor/compositor-xrender.c
@@ -62,6 +62,12 @@
 
 #define USE_IDLE_REPAINT 1
 
+#ifdef __GNUC__
+#define UNUSED_VARIABLE __attribute__ ((unused))
+#else
+#define UNUSED_VARIABLE
+#endif
+
 #ifdef HAVE_COMPOSITE_EXTENSIONS
 static inline gboolean
 composite_at_least_version (MetaDisplay *display,
@@ -1131,8 +1137,8 @@ paint_windows (MetaScreen   *screen,
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
   Display *xdisplay = meta_display_get_xdisplay (display);
   GList *index, *last;
-  int screen_width, screen_height, screen_number;
-  Window xroot;
+  int screen_width, screen_height, UNUSED_VARIABLE screen_number;
+  Window UNUSED_VARIABLE xroot;
   MetaCompWindow *cw;
   XserverRegion paint_region, desktop_region;
 
diff --git a/src/core/boxes.c b/src/core/boxes.c
index dad6b470..877fa458 100644
--- a/src/core/boxes.c
+++ b/src/core/boxes.c
@@ -311,7 +311,6 @@ meta_rectangle_resize_with_gravity (const MetaRectangle *old_rect,
    */
 
   /* First, the x direction */
-  int adjust = 0;
   switch (gravity)
     {
     case NorthWestGravity:
@@ -344,7 +343,6 @@ meta_rectangle_resize_with_gravity (const MetaRectangle *old_rect,
   rect->width = new_width;
 
   /* Next, the y direction */
-  adjust = 0;
   switch (gravity)
     {
     case NorthWestGravity:
diff --git a/src/core/display.c b/src/core/display.c
index eccb5497..a66dfc9f 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -2805,7 +2805,11 @@ key_event_description (Display *xdisplay,
   KeySym keysym;
   const char *str;
   
+#ifdef HAVE_XKB
+  keysym = XkbKeycodeToKeysym (xdisplay, event->xkey.keycode, 0, 0);  
+#else
   keysym = XKeycodeToKeysym (xdisplay, event->xkey.keycode, 0);  
+#endif
 
   str = XKeysymToString (keysym);
   
diff --git a/src/core/errors.c b/src/core/errors.c
index 6539d7b1..c603ccfd 100644
--- a/src/core/errors.c
+++ b/src/core/errors.c
@@ -29,6 +29,12 @@
 #include <stdlib.h>
 #include <gdk/gdk.h>
 
+#ifdef __GNUC__
+#define UNUSED_VARIABLE __attribute__ ((unused))
+#else
+#define UNUSED_VARIABLE
+#endif
+
 static int x_error_handler    (Display     *display,
                                XErrorEvent *error);
 static int x_io_error_handler (Display     *display);
@@ -121,7 +127,7 @@ meta_error_trap_pop_internal  (MetaDisplay *display,
        * assumes that there are no pending GDK traps from GDK itself
        */
       
-      int (* restored_error_handler) (Display     *,
+      int UNUSED_VARIABLE (* restored_error_handler) (Display     *,
                                       XErrorEvent *);
 
       restored_error_handler = XSetErrorHandler (x_error_handler);
diff --git a/src/core/keybindings.c b/src/core/keybindings.c
index 8dda13cd..07384b22 100644
--- a/src/core/keybindings.c
+++ b/src/core/keybindings.c
@@ -1273,7 +1273,11 @@ meta_display_process_key_event (MetaDisplay *display,
   
   /* window may be NULL */
   
+#ifdef HAVE_XKB
+  keysym = XkbKeycodeToKeysym (display->xdisplay, event->xkey.keycode, 0, 0);
+#else
   keysym = XKeycodeToKeysym (display->xdisplay, event->xkey.keycode, 0);
+#endif
 
   str = XKeysymToString (keysym);
   
diff --git a/src/core/main.c b/src/core/main.c
index 90332c50..5f8d9b32 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -69,6 +69,12 @@
 #include <time.h>
 #include <unistd.h>
 
+#ifdef __GNUC__
+#define UNUSED_VARIABLE __attribute__ ((unused))
+#else
+#define UNUSED_VARIABLE
+#endif
+
 /**
  * The exit code we'll return to our parent process when we eventually die.
  */
@@ -376,7 +382,7 @@ sigterm_handler (int signum)
 {
   if (sigterm_pipe_fds[1] >= 0)
     {
-      int dummy;
+      int UNUSED_VARIABLE dummy;
 
       dummy = write (sigterm_pipe_fds[1], "", 1);
       close (sigterm_pipe_fds[1]);
@@ -415,8 +421,12 @@ main (int argc, char **argv)
   guint i;
   GIOChannel *channel;
 
+#if GLIB_CHECK_VERSION (2, 32, 0)
+  /* g_thread_init () deprecated */
+#else
   if (!g_thread_supported ())
     g_thread_init (NULL);
+#endif
   
   if (setlocale (LC_ALL, "") == NULL)
     meta_warning ("Locale not understood by C library, internationalization will not work\n");
diff --git a/src/core/prefs.c b/src/core/prefs.c
index a39af335..a2cd3d76 100644
--- a/src/core/prefs.c
+++ b/src/core/prefs.c
@@ -143,7 +143,10 @@ static char* settings_key_for_workspace_name (int i);
 
 static void queue_changed (MetaPreference  pref);
 
+#if 0
 static void     cleanup_error             (GError **error);
+#endif
+
 static void maybe_give_disable_workarounds_warning (void);
 
 static void titlebar_handler (MetaPreference, const gchar*, gboolean*);
@@ -275,37 +278,37 @@ static MetaEnumPreference preferences_enum[] =
     { "focus-new-windows",
       KEY_GENERAL_SCHEMA,
       META_PREF_FOCUS_NEW_WINDOWS,
-      &focus_new_windows,
+      (gint *) &focus_new_windows,
     },
     { "focus-mode",
       KEY_GENERAL_SCHEMA,
       META_PREF_FOCUS_MODE,
-      &focus_mode,
+      (gint *) &focus_mode,
     },
     { "wrap-style",
       KEY_GENERAL_SCHEMA,
       META_PREF_WRAP_STYLE,
-      &wrap_style,
+      (gint *) &wrap_style,
     },
     { "visual-bell-type",
       KEY_GENERAL_SCHEMA,
       META_PREF_VISUAL_BELL_TYPE,
-      &visual_bell_type,
+      (gint *) &visual_bell_type,
     },
     { "action-double-click-titlebar",
       KEY_GENERAL_SCHEMA,
       META_PREF_ACTION_DOUBLE_CLICK_TITLEBAR,
-      &action_double_click_titlebar,
+      (gint *) &action_double_click_titlebar,
     },
     { "action-middle-click-titlebar",
       KEY_GENERAL_SCHEMA,
       META_PREF_ACTION_MIDDLE_CLICK_TITLEBAR,
-      &action_middle_click_titlebar,
+      (gint *) &action_middle_click_titlebar,
     },
     { "action-right-click-titlebar",
       KEY_GENERAL_SCHEMA,
       META_PREF_ACTION_RIGHT_CLICK_TITLEBAR,
-      &action_right_click_titlebar,
+      (gint *) &action_right_click_titlebar,
     },
     { NULL, NULL, 0, NULL },
   };
@@ -898,7 +901,7 @@ meta_prefs_init (void)
 /* Updates.                                                                 */
 /****************************************************************************/
 
-gboolean (*preference_update_handler[]) (const gchar*, GVariant*) = {
+gboolean (*preference_update_handler[]) (const gchar*, GSettings*) = {
   handle_preference_update_enum,
   handle_preference_update_bool,
   handle_preference_update_string,
@@ -975,6 +978,7 @@ change_notify (GSettings *settings,
   g_free (schema_name);
 }
 
+#if 0
 static void
 cleanup_error (GError **error)
 {
@@ -986,6 +990,7 @@ cleanup_error (GError **error)
       *error = NULL;
     }
 }
+#endif
 
 /**
  * Special case: give a warning the first time disable_workarounds
@@ -1566,9 +1571,9 @@ init_bindings (void)
     NULL
   };
   int i;
-  gchar **list;
-  gchar *str_val;
-  GSettings *bindings_settings;
+  gchar **list = NULL;
+  gchar *str_val = NULL;
+  GSettings *bindings_settings = NULL;
 
   for (i = 0; prefix[i]; i++)
     {
@@ -1589,8 +1594,8 @@ init_bindings (void)
 static void
 init_commands (void)
 {
-  gchar **list;
-  gchar *str_val;
+  gchar **list = NULL;
+  gchar *str_val = NULL;
 
   list = g_settings_list_keys (settings_command);
   while (*list != NULL)
@@ -1605,8 +1610,8 @@ init_commands (void)
 static void
 init_workspace_names (void)
 {
-  gchar **list;
-  gchar *str_val;
+  gchar **list = NULL;
+  gchar *str_val = NULL;
 
   list = g_settings_list_keys (settings_workspace_names);
   while (*list != NULL)
diff --git a/src/core/screen.c b/src/core/screen.c
index f696d92a..e8fce40a 100644
--- a/src/core/screen.c
+++ b/src/core/screen.c
@@ -1272,8 +1272,8 @@ meta_screen_ensure_tab_popup (MetaScreen      *screen,
     {
       MetaWindow *window;
       MetaRectangle r;
-      GdkPixbuf *win_pixbuf;
-      int width, height;
+      GdkPixbuf *win_pixbuf = NULL;
+      int width = 0, height = 0;
 
       window = tmp->data;
       
diff --git a/src/core/testasyncgetprop.c b/src/core/testasyncgetprop.c
index ed044009..25490cb8 100644
--- a/src/core/testasyncgetprop.c
+++ b/src/core/testasyncgetprop.c
@@ -81,6 +81,12 @@ print_backtrace (void)
 }
 #endif
 
+#ifdef __GNUC__
+#define UNUSED_VARIABLE __attribute__ ((unused))
+#else
+#define UNUSED_VARIABLE
+#endif
+
 static int error_trap_depth = 0;
 
 static int
@@ -416,7 +422,7 @@ run_speed_comparison (Display *xdisplay,
       
       while ((task = ag_get_next_completed_task (xdisplay)))
         {
-          int result;
+          int UNUSED_VARIABLE result;
           Atom actual_type;
           int actual_format;
           unsigned long n_items;
diff --git a/src/core/window.c b/src/core/window.c
index 06b6446f..bf1b53e4 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -53,6 +53,12 @@
 #include <X11/extensions/shape.h>
 #endif
 
+#ifdef __GNUC__
+#define UNUSED_VARIABLE __attribute__ ((unused))
+#else
+#define UNUSED_VARIABLE
+#endif
+
 static int destroying_windows_disallowed = 0;
 
 
@@ -5204,7 +5210,7 @@ meta_window_client_message (MetaWindow *window,
   else if (event->xclient.message_type ==
            display->atom__NET_MOVERESIZE_WINDOW)
     {
-      int gravity, source;
+      int gravity, UNUSED_VARIABLE source;
       guint value_mask;
 
       gravity = (event->xclient.data.l[0] & 0xff);
@@ -5252,7 +5258,7 @@ meta_window_client_message (MetaWindow *window,
   else if (event->xclient.message_type ==
            display->atom__NET_WM_FULLSCREEN_MONITORS)
     {
-      MetaClientType source_indication;
+      MetaClientType UNUSED_VARIABLE source_indication;
       gulong top, bottom, left, right;
 
       meta_verbose ("_NET_WM_FULLSCREEN_MONITORS request for window '%s'\n",
@@ -5463,7 +5469,7 @@ static gboolean
 process_property_notify (MetaWindow     *window,
                          XPropertyEvent *event)
 {
-  Window xid = window->xwindow;
+  Window UNUSED_VARIABLE xid = window->xwindow;
 
   if (meta_is_verbose ()) /* avoid looking up the name if we don't have to */
     {
@@ -6705,7 +6711,7 @@ meta_window_titlebar_is_onscreen (MetaWindow *window)
 {
   MetaRectangle  titlebar_rect;
   GList         *onscreen_region;
-  int            titlebar_size;
+  int            UNUSED_VARIABLE titlebar_size;
   gboolean       is_onscreen;
 
   const int min_height_needed  = 8;
diff --git a/src/ui/testgradient.c b/src/ui/testgradient.c
index 4def3b07..0de2510c 100644
--- a/src/ui/testgradient.c
+++ b/src/ui/testgradient.c
@@ -23,6 +23,12 @@
 #include "gradient.h"
 #include <gtk/gtk.h>
 
+#ifdef __GNUC__
+#define UNUSED_VARIABLE __attribute__ ((unused))
+#else
+#define UNUSED_VARIABLE
+#endif
+
 typedef void (* RenderGradientFunc) (GdkDrawable *drawable,
                                      cairo_t     *cr,
                                      int          width,
@@ -294,7 +300,7 @@ create_gradient_window (const char *title,
 static void
 meta_gradient_test (void)
 {
-  GtkWidget *window;
+  GtkWidget UNUSED_VARIABLE *window;
 
   window = create_gradient_window ("Simple vertical",
                                    render_vertical_func);
diff --git a/src/ui/themewidget.c b/src/ui/themewidget.c
index 6bbb05a1..3489618a 100644
--- a/src/ui/themewidget.c
+++ b/src/ui/themewidget.c
@@ -24,6 +24,12 @@
 #include "themewidget.h"
 #include <math.h>
 
+#ifdef __GNUC__
+#define UNUSED_VARIABLE __attribute__ ((unused))
+#else
+#define UNUSED_VARIABLE
+#endif
+
 static void meta_area_class_init   (MetaAreaClass  *klass);
 static void meta_area_init         (MetaArea       *area);
 static void meta_area_size_request (GtkWidget      *widget,
@@ -64,7 +70,7 @@ static void
 meta_area_class_init (MetaAreaClass *class)
 {
   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
-  GtkObjectClass *object_class;
+  GtkObjectClass UNUSED_VARIABLE *object_class;
   GtkWidgetClass *widget_class;
 
   object_class = (GtkObjectClass*) class;