diff --git a/gdk/win32/gdkdisplay-win32.c b/gdk/win32/gdkdisplay-win32.c
index 2611c03015..cef60721a1 100644
--- a/gdk/win32/gdkdisplay-win32.c
+++ b/gdk/win32/gdkdisplay-win32.c
@@ -370,7 +370,9 @@ inner_clipboard_window_procedure (HWND   hwnd,
       {
         int success;
         HWND hwndOwner;
+#ifdef G_ENABLE_DEBUG
         UINT nFormat = 0;
+#endif
         GdkEvent *event;
         GdkWindow *owner;
 
diff --git a/gdk/win32/gdkevents-win32.c b/gdk/win32/gdkevents-win32.c
index fc980f68da..1cde4fc40c 100644
--- a/gdk/win32/gdkevents-win32.c
+++ b/gdk/win32/gdkevents-win32.c
@@ -2057,7 +2057,7 @@ gdk_event_translate (MSG  *msg,
   GdkWindow *window = NULL;
   GdkWindowImplWin32 *impl;
 
-  GdkWindow *orig_window, *new_window, *toplevel;
+  GdkWindow *orig_window, *new_window;
 
   GdkPointerGrabInfo *grab = NULL;
   GdkWindow *grab_window = NULL;
@@ -2776,8 +2776,6 @@ gdk_event_translate (MSG  *msg,
 
      case WM_MOUSEACTIVATE:
        {
-	 GdkWindow *tmp;
-
 	 if (gdk_window_get_window_type (window) == GDK_WINDOW_TEMP 
 	     || !((GdkWindowObject *)window)->accept_focus)
 	   {
@@ -3669,8 +3667,6 @@ gdk_flush (void)
 void
 gdk_display_sync (GdkDisplay * display)
 {
-  MSG msg;
-
   g_return_if_fail (display == _gdk_display);
 
   GdiFlush ();
diff --git a/gdk/win32/gdkfont-win32.c b/gdk/win32/gdkfont-win32.c
index e58a8d2543..9b81ce50b1 100644
--- a/gdk/win32/gdkfont-win32.c
+++ b/gdk/win32/gdkfont-win32.c
@@ -96,6 +96,7 @@ gdk_font_hash_lookup (GdkFontType  type,
     }
 }
 
+#ifdef G_ENABLE_DEBUG
 static const char *
 charset_name (DWORD charset)
 {
@@ -122,6 +123,7 @@ charset_name (DWORD charset)
     }
   return "unknown";
 }
+#endif
 
 /* This table classifies Unicode characters according to the Microsoft
  * Unicode subset numbering. This is based on the table in "Developing
@@ -366,6 +368,7 @@ static struct {
     U_SPECIALS, "Specials" }
 };
 
+#ifdef G_ENABLE_DEBUG
 static void
 print_unicode_subranges (FONTSIGNATURE *fsp)
 {
@@ -387,6 +390,7 @@ print_unicode_subranges (FONTSIGNATURE *fsp)
     g_print (" none!");
   g_print ("\n");
 }
+#endif
 
 static gboolean
 check_unicode_subranges (UINT           charset,
diff --git a/gdk/win32/gdkgc-win32.c b/gdk/win32/gdkgc-win32.c
index 62f79292b6..712bc28585 100644
--- a/gdk/win32/gdkgc-win32.c
+++ b/gdk/win32/gdkgc-win32.c
@@ -205,7 +205,9 @@ gdk_win32_gc_values_to_win32values (GdkGCValues    *values,
 				    GdkGCValuesMask mask,
 				    GdkGCWin32     *win32_gc)
 {				    
+#ifdef G_ENABLE_DEBUG
   char *s = "";
+#endif
 
   GDK_NOTE (GC, g_print ("{"));
 
diff --git a/gdk/win32/gdkinput-win32.c b/gdk/win32/gdkinput-win32.c
index c897a126e3..3fe7aaf3de 100644
--- a/gdk/win32/gdkinput-win32.c
+++ b/gdk/win32/gdkinput-win32.c
@@ -97,8 +97,10 @@ gdk_input_find_dev_from_ctx (HCTX hctx,
   return NULL;
 }
 
+
 #if DEBUG_WINTAB
 
+#ifdef G_ENABLE_DEBUG
 static void
 print_lc(LOGCONTEXT *lc)
 {
@@ -323,6 +325,7 @@ print_cursor (int index)
     }
 }
 #endif
+#endif
 
 void
 _gdk_input_wintab_init_check (void)
diff --git a/gdk/win32/gdkwindow-win32.c b/gdk/win32/gdkwindow-win32.c
index bef9a1de8a..867e343cc4 100644
--- a/gdk/win32/gdkwindow-win32.c
+++ b/gdk/win32/gdkwindow-win32.c
@@ -965,7 +965,9 @@ adjust_for_gravity_hints (GdkWindow *window,
 
   if (impl->hint_flags & GDK_HINT_WIN_GRAVITY)
     {
+#ifdef G_ENABLE_DEBUG
       gint orig_x = *x, orig_y = *y;
+#endif
 
       switch (impl->hints.win_gravity)
 	{
@@ -1029,7 +1031,6 @@ show_window_internal (GdkWindow *window,
 {
   GdkWindowObject *private;
   GdkWindowImplWin32 *window_impl;
-  HWND old_active_window;
   gboolean focus_on_map = FALSE;
   DWORD exstyle;