# find the mk/ directory, which is where this makefile fragment # lives. (patsubst strips the trailing slash.) MK_DIR := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST)))) # APPDIR is defined for the PX4 build only ifeq ($(APPDIR),) #################### # AVR and SITL build include $(MK_DIR)/Arduino.mk include $(MK_DIR)/targets.mk else #################### # PX4 build include $(MK_DIR)/px4_core.mk endif # these targets need to be outside the APPDIR if above include $(MK_DIR)/px4_targets.mk