-ifdef $(or MOUSEKEY_ENABLE, PS2_MOUSE_ENABLE)
- OPT_DEFS += -DMOUSE_ENABLE
+ifdef SLEEP_LED_ENABLE
+ SRC += $(COMMON_DIR)/sleep_led.c
+ OPT_DEFS += -DSLEEP_LED_ENABLE
+ OPT_DEFS += -DNO_SUSPEND_POWER_DOWN
+endif
+
+ifdef BACKLIGHT_ENABLE
+ SRC += $(COMMON_DIR)/backlight.c
+ OPT_DEFS += -DBACKLIGHT_ENABLE
+endif
+
+ifdef KEYMAP_SECTION_ENABLE
+ OPT_DEFS += -DKEYMAP_SECTION_ENABLE
+ EXTRALDFLAGS = -Wl,-L$(TOP_DIR),-Tldscript_keymap_avr5.x