Use "new" GDK keysym names

Old names are no longer available with GTK+4

include/wx/gtk/private/gtk2-compat.h

@@ -526,6 +526,113 @@ static inline void wx_gtk_widget_get_preferred_size(GtkWidget* widget, GtkRequis
 }
 #define gtk_widget_get_preferred_size wx_gtk_widget_get_preferred_size
 
+#if defined(GDK_Alt_L) && !defined(GDK_KEY_Alt_L)
+#define GDK_KEY_Alt_L GDK_Alt_L
+#define GDK_KEY_Alt_R GDK_Alt_R
+#define GDK_KEY_AudioLowerVolume GDK_AudioLowerVolume
+#define GDK_KEY_AudioMute GDK_AudioMute
+#define GDK_KEY_AudioNext GDK_AudioNext
+#define GDK_KEY_AudioPlay GDK_AudioPlay
+#define GDK_KEY_AudioPrev GDK_AudioPrev
+#define GDK_KEY_AudioRaiseVolume GDK_AudioRaiseVolume
+#define GDK_KEY_AudioStop GDK_AudioStop
+#define GDK_KEY_Back GDK_Back
+#define GDK_KEY_BackSpace GDK_BackSpace
+#define GDK_KEY_Begin GDK_Begin
+#define GDK_KEY_Caps_Lock GDK_Caps_Lock
+#define GDK_KEY_Clear GDK_Clear
+#define GDK_KEY_Control_L GDK_Control_L
+#define GDK_KEY_Control_R GDK_Control_R
+#define GDK_KEY_Delete GDK_Delete
+#define GDK_KEY_Down GDK_Down
+#define GDK_KEY_End GDK_End
+#define GDK_KEY_Escape GDK_Escape
+#define GDK_KEY_Execute GDK_Execute
+#define GDK_KEY_F10 GDK_F10
+#define GDK_KEY_F11 GDK_F11
+#define GDK_KEY_F12 GDK_F12
+#define GDK_KEY_F1 GDK_F1
+#define GDK_KEY_F2 GDK_F2
+#define GDK_KEY_F3 GDK_F3
+#define GDK_KEY_F4 GDK_F4
+#define GDK_KEY_F5 GDK_F5
+#define GDK_KEY_F6 GDK_F6
+#define GDK_KEY_F7 GDK_F7
+#define GDK_KEY_F8 GDK_F8
+#define GDK_KEY_F9 GDK_F9
+#define GDK_KEY_Favorites GDK_Favorites
+#define GDK_KEY_Forward GDK_Forward
+#define GDK_KEY_Help GDK_Help
+#define GDK_KEY_Home GDK_Home
+#define GDK_KEY_HomePage GDK_HomePage
+#define GDK_KEY_Insert GDK_Insert
+#define GDK_KEY_ISO_Enter GDK_ISO_Enter
+#define GDK_KEY_ISO_Left_Tab GDK_ISO_Left_Tab
+#define GDK_KEY_KP_0 GDK_KP_0
+#define GDK_KEY_KP_1 GDK_KP_1
+#define GDK_KEY_KP_2 GDK_KP_2
+#define GDK_KEY_KP_3 GDK_KP_3
+#define GDK_KEY_KP_4 GDK_KP_4
+#define GDK_KEY_KP_5 GDK_KP_5
+#define GDK_KEY_KP_6 GDK_KP_6
+#define GDK_KEY_KP_7 GDK_KP_7
+#define GDK_KEY_KP_8 GDK_KP_8
+#define GDK_KEY_KP_9 GDK_KP_9
+#define GDK_KEY_KP_Add GDK_KP_Add
+#define GDK_KEY_KP_Begin GDK_KP_Begin
+#define GDK_KEY_KP_Decimal GDK_KP_Decimal
+#define GDK_KEY_KP_Delete GDK_KP_Delete
+#define GDK_KEY_KP_Divide GDK_KP_Divide
+#define GDK_KEY_KP_Down GDK_KP_Down
+#define GDK_KEY_KP_End GDK_KP_End
+#define GDK_KEY_KP_Enter GDK_KP_Enter
+#define GDK_KEY_KP_Equal GDK_KP_Equal
+#define GDK_KEY_KP_F1 GDK_KP_F1
+#define GDK_KEY_KP_F2 GDK_KP_F2
+#define GDK_KEY_KP_F3 GDK_KP_F3
+#define GDK_KEY_KP_F4 GDK_KP_F4
+#define GDK_KEY_KP_Home GDK_KP_Home
+#define GDK_KEY_KP_Insert GDK_KP_Insert
+#define GDK_KEY_KP_Left GDK_KP_Left
+#define GDK_KEY_KP_Multiply GDK_KP_Multiply
+#define GDK_KEY_KP_Next GDK_KP_Next
+#define GDK_KEY_KP_Prior GDK_KP_Prior
+#define GDK_KEY_KP_Right GDK_KP_Right
+#define GDK_KEY_KP_Separator GDK_KP_Separator
+#define GDK_KEY_KP_Space GDK_KP_Space
+#define GDK_KEY_KP_Subtract GDK_KP_Subtract
+#define GDK_KEY_KP_Tab GDK_KP_Tab
+#define GDK_KEY_KP_Up GDK_KP_Up
+#define GDK_KEY_LaunchA GDK_LaunchA
+#define GDK_KEY_LaunchB GDK_LaunchB
+#define GDK_KEY_Left GDK_Left
+#define GDK_KEY_Linefeed GDK_Linefeed
+#define GDK_KEY_Mail GDK_Mail
+#define GDK_KEY_Menu GDK_Menu
+#define GDK_KEY_Meta_L GDK_Meta_L
+#define GDK_KEY_Meta_R GDK_Meta_R
+#define GDK_KEY_Next GDK_Next
+#define GDK_KEY_Num_Lock GDK_Num_Lock
+#define GDK_KEY_Page_Down GDK_Page_Down
+#define GDK_KEY_Page_Up GDK_Page_Up
+#define GDK_KEY_Pause GDK_Pause
+#define GDK_KEY_Print GDK_Print
+#define GDK_KEY_Prior GDK_Prior
+#define GDK_KEY_Refresh GDK_Refresh
+#define GDK_KEY_Return GDK_Return
+#define GDK_KEY_Right GDK_Right
+#define GDK_KEY_Scroll_Lock GDK_Scroll_Lock
+#define GDK_KEY_Search GDK_Search
+#define GDK_KEY_Select GDK_Select
+#define GDK_KEY_Shift_L GDK_Shift_L
+#define GDK_KEY_Shift_R GDK_Shift_R
+#define GDK_KEY_Stop GDK_Stop
+#define GDK_KEY_Super_L GDK_Super_L
+#define GDK_KEY_Super_R GDK_Super_R
+#define GDK_KEY_Tab GDK_Tab
+#define GDK_KEY_Up GDK_Up
+#endif
+
 // There is no equivalent in GTK+ 2, but it's not needed there anyhow as the
 // backend is determined at compile time in that version.
 #define GDK_IS_X11_DISPLAY(dpy) true