Diff of /gtkextra/gtksheet.c [89bc8e] .. [2dc077] Maximize Restore

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--- a/gtkextra/gtksheet.c
+++ b/gtkextra/gtksheet.c
@@ -88,6 +88,21 @@
 #endif
 
 #define GTK_SHEET_MOD_MASK  GDK_MOD1_MASK  /* main modifier for sheet navigation */
+
+#ifndef GDK_KEY_KP_Up
+#   define GDK_KEY_KP_Up GDK_KP_Up
+#   define GDK_KEY_KP_Down GDK_KP_Down
+#   define GDK_KEY_KP_Page_Up GDK_KP_Page_Up
+#   define GDK_KEY_KP_Page_Down GDK_KP_Page_Down
+#   define GDK_KEY_KP_Page_Left GDK_KP_Page_Left
+#   define GDK_KEY_KP_Page_Right GDK_KP_Page_Right
+#   define GDK_KEY_KP_Home GDK_KP_Home
+#   define GDK_KEY_KP_End GDK_KP_End
+#   define GDK_KEY_KP_Left GDK_KP_Left
+#   define GDK_KEY_KP_Right GDK_KP_Right
+#   define GDK_KEY_KP_Enter GDK_KP_Enter
+#endif
+
 
 /* sheet flags */
 enum _GtkSheetFlags