Cleanup of module building.

src/drivers/CMakeLists.txt

@@ -1,55 +0,0 @@
-set(directories
-	./roboclaw
-	./device
-	./px4io
-	./boards/px4fmu-v2
-	./boards/px4-stm32f4discovery
-	./boards/px4io-v2
-	./boards/px4io-v1
-	./boards/px4fmu-v1
-	./boards/aerocore
-	./boards/sitl
-	./mpu6000
-	./gimbal
-	./camera_trigger
-	./pwm_input
-	./pwm_out_sim
-	./pca9685
-	./mkblctrl
-	./sf0x
-	./hott/hott_telemetry
-	./hott/hott_sensors
-	./hott
-	./ms5611
-	./led
-	./irlock
-	./bma180
-	./l3gd20
-	./blinkm
-	./md25
-	./lsm303d
-	./pca8574
-	./mb12xx
-	./trone
-	./airspeed
-	./rgbled
-	./frsky_telemetry
-	./meas_airspeed
-	./px4flow
-	./mpu9250
-	./gps
-	./ets_airspeed
-	./ll40ls
-	./ardrone_interface
-	./hmc5883
-	./px4fmu
-	./stm32/tone_alarm
-	./stm32/adc
-	./stm32
-	./oreoled
-	./batt_smbus
-	)
-
-foreach(directory ${directories})
-	add_subdirectory(${directory} EXCLUDE_FROM_ALL)
-endforeach()

src/drivers/device/CMakeLists.txt

@@ -35,13 +35,17 @@ set(SRCS)
 
 if(${OS} STREQUAL "nuttx")
 	list(APPEND SRCS
-		device_nuttx.cpp
-		cdev.cpp
-		i2c_nuttx.cpp
-		pio.cpp
-		spi.cpp
 		ringbuffer.cpp
 	)
+	if (NOT ${BOARD} STREQUAL "sim")
+		list(APPEND SRCS
+			device_nuttx.cpp
+			cdev.cpp
+			i2c_nuttx.cpp
+			pio.cpp
+			spi.cpp
+		)
+	endif()
 else()
 	list(APPEND SRCS
 		device_posix.cpp