xkb_keymap {
xkb_keycodes {
	minimum = 1;
	maximum = 255;
	<>                   = 1;
};

xkb_types {
	virtual_modifiers Alt;

	type "TWO_LEVEL" {
		modifiers= Shift;
		map[Shift]= 2;
	};
};

xkb_compatibility {
	virtual_modifiers Alt;

	interpret.useModMapMods= AnyLevel;
	interpret.repeat= False;
	interpret Shift_L+AnyOf(all) {
		action= SetMods(modifiers=Shift);
	};
	interpret Alt_L+AnyOf(all) {
		virtualModifier= Alt;
		action= SetMods(modifiers=Alt);
	};
};

xkb_symbols {
	key <>                   {	[           Alt_L,         Shift_L ] };
	modifier_map Shift+Mod1 { <> };
};

};