attempt at fixing arm build

Author: Luca Toniolo

src/Makefile

@@ -902,7 +902,7 @@ EXTRA_CFLAGS := $(filter-out -ffast-math,$(RTFLAGS)) -D__MODULE__ -I$(BASEPWD)/.
 	-I$(BASEPWD)/libnml/cms -I$(BASEPWD)/libnml/rcs -I$(BASEPWD)/libnml/inifile \
 	-I$(BASEPWD)/libnml/os_intf -I$(BASEPWD)/libnml/nml -I$(BASEPWD)/libnml/buffer \
 	-I$(BASEPWD)/libnml/posemath -I$(BASEPWD)/rtapi -I$(BASEPWD)/hal \
-	-I$(BASEPWD)/emc/nml_intf -I$(BASEPWD)/emc/kinematics -I$(BASEPWD)/emc/tp -I$(BASEPWD)/emc/motion \
+	-I$(BASEPWD)/emc/nml_intf -I$(BASEPWD)/emc/kinematics -I$(BASEPWD)/emc/tp -I$(BASEPWD)/emc/motion -I$(BASEPWD)/emc/motion_planning \
 	-DSEQUENTIAL_SUPPORT -DHAL_SUPPORT -DDYNAMIC_PLCSIZE -DRT_SUPPORT -DOLD_TIMERS_MONOS_SUPPORT -DMODBUS_IO_MASTER \
 	-fno-fast-math $(call cc-option,-mieee-fp) -fno-unsafe-math-optimizations \
 	-Wno-declaration-after-statement \