-ifeq ($(strip $(KEYBOARD)), lets_split_rev2)
-SRC += ../../keyboards/lets_split/lets_split.c
-endif
-
-SRC += wanleg.c tapdances.c
+SRC += wanleg.c tapdances.c
TAP_DANCE_ENABLE = yes
MOUSEKEY_ENABLE = yes
ifeq ($(strip $(dfu)), qmk)
BOOTLOADER = qmk-dfu
endif
+
+#use alternate settings for 4x4 board using ProMicro instead of Micro
+#usage: make 4x4:wanleg PM=yes
+ifeq ($(strip $(PM)), yes)
+ OPT_DEFS += -DPRO_MICRO
+endif