helping USE_SMART_BUILD

firmware/Makefile

@@ -80,6 +80,18 @@ ifeq ($(USE_VERBOSE_COMPILE),)
   USE_VERBOSE_COMPILE = no
 endif
 
+# If enabled, this option makes the build process faster by not compiling
+# modules not used in the current configuration.
+# without USE_SMART_BUILD all ChibiOS (including all drivers) are builded. And all drivers includes get included.
+ifeq ($(USE_SMART_BUILD),)
+  USE_SMART_BUILD = yes
+endif
+
+# for this to work it has to be defined before hal.mk
+ifeq ($(CONFDIR),)
+  CONFDIR = config/stm32f4ems
+endif
+
 ifeq ($(USE_BOOTLOADER),)
   USE_BOOTLOADER = no
 endif
@@ -123,6 +135,11 @@ MAKEFLAGS += ${NUMJOBS}
 # Architecture or project specific options
 ##############################################################################
 
+BOARDS_DIR = $(PROJECT_DIR)/config/boards
+# we want this above hal.mk since we often define CONFDIR inside board.mk
+include $(PROJECT_DIR)/config/boards/$(PROJECT_BOARD)/board.mk
+
+
 ##############################################################################
 # Project, sources and paths
 #
@@ -147,9 +164,6 @@ ifeq ($(USE_FATFS),yes)
 include $(PROJECT_DIR)/ext/fatfs.mk
 endif
 
-BOARDS_DIR = $(PROJECT_DIR)/config/boards
-
-include $(PROJECT_DIR)/config/boards/$(PROJECT_BOARD)/board.mk
 include $(PROJECT_DIR)/config/engines/engines.mk
 include $(PROJECT_DIR)/console/console.mk
 include $(PROJECT_DIR)/controllers/controllers.mk
@@ -166,15 +180,6 @@ ifeq ($(BOOTLOADERINC),)
   BOOTLOADERINC= $(PROJECT_DIR)/bootloader/
 endif
 
-# If enabled, this option makes the build process faster by not compiling
-# modules not used in the current configuration.
-# without USE_SMART_BUILD all ChibiOS (including all drivers) are builded. And all drivers includes get included.
-ifeq ($(USE_SMART_BUILD),)
-  USE_SMART_BUILD = yes
-endif
-ifeq ($(CONFDIR),)
-  CONFDIR = config/stm32f4ems
-endif
 
 ifeq ($(USE_BOOTLOADER),yes)
 include $(PROJECT_DIR)/bootloader/bootloader.mk