-ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_5)/keymap.c)","")
- -include $(MAIN_KEYMAP_PATH_5)/rules.mk
- KEYMAP_C := $(MAIN_KEYMAP_PATH_5)/keymap.c
- KEYMAP_PATH := $(MAIN_KEYMAP_PATH_5)
-else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_4)/keymap.c)","")
- -include $(MAIN_KEYMAP_PATH_4)/rules.mk
- KEYMAP_C := $(MAIN_KEYMAP_PATH_4)/keymap.c
- KEYMAP_PATH := $(MAIN_KEYMAP_PATH_4)
-else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_3)/keymap.c)","")
- -include $(MAIN_KEYMAP_PATH_3)/rules.mk
- KEYMAP_C := $(MAIN_KEYMAP_PATH_3)/keymap.c
- KEYMAP_PATH := $(MAIN_KEYMAP_PATH_3)
-else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_2)/keymap.c)","")
- -include $(MAIN_KEYMAP_PATH_2)/rules.mk
- KEYMAP_C := $(MAIN_KEYMAP_PATH_2)/keymap.c
- KEYMAP_PATH := $(MAIN_KEYMAP_PATH_2)
-else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_1)/keymap.c)","")
- -include $(MAIN_KEYMAP_PATH_1)/rules.mk
- KEYMAP_C := $(MAIN_KEYMAP_PATH_1)/keymap.c
- KEYMAP_PATH := $(MAIN_KEYMAP_PATH_1)
-else ifneq ($(LAYOUTS),)
- include build_layout.mk
-else
- $(error Could not find keymap)
- # this state should never be reached
+# Check for keymap.json first, so we can regenerate keymap.c
+include build_json.mk
+
+ifeq ("$(wildcard $(KEYMAP_PATH))", "")
+ # Look through the possible keymap folders until we find a matching keymap.c
+ ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_5)/keymap.c)","")
+ -include $(MAIN_KEYMAP_PATH_5)/rules.mk
+ KEYMAP_C := $(MAIN_KEYMAP_PATH_5)/keymap.c
+ KEYMAP_PATH := $(MAIN_KEYMAP_PATH_5)
+ else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_4)/keymap.c)","")
+ -include $(MAIN_KEYMAP_PATH_4)/rules.mk
+ KEYMAP_C := $(MAIN_KEYMAP_PATH_4)/keymap.c
+ KEYMAP_PATH := $(MAIN_KEYMAP_PATH_4)
+ else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_3)/keymap.c)","")
+ -include $(MAIN_KEYMAP_PATH_3)/rules.mk
+ KEYMAP_C := $(MAIN_KEYMAP_PATH_3)/keymap.c
+ KEYMAP_PATH := $(MAIN_KEYMAP_PATH_3)
+ else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_2)/keymap.c)","")
+ -include $(MAIN_KEYMAP_PATH_2)/rules.mk
+ KEYMAP_C := $(MAIN_KEYMAP_PATH_2)/keymap.c
+ KEYMAP_PATH := $(MAIN_KEYMAP_PATH_2)
+ else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_1)/keymap.c)","")
+ -include $(MAIN_KEYMAP_PATH_1)/rules.mk
+ KEYMAP_C := $(MAIN_KEYMAP_PATH_1)/keymap.c
+ KEYMAP_PATH := $(MAIN_KEYMAP_PATH_1)
+ else ifneq ($(LAYOUTS),)
+ # If we haven't found a keymap yet fall back to community layouts
+ include build_layout.mk
+ else
+ $(error Could not find keymap)
+ # this state should never be reached
+ endif