Makefile template in parent directory to invoke makefile in subdirectories

Makefile

STATIC_LIB1 = foldername1 
STATIC_LIB2 = foldername2
STATIC_LIB3 = foldername3

DYNAMIC_DLL = foldername4
RUN_SH_SCRIPT= foldername5


#$(LIBPCAP_LINUX) 
ALL_TARGETS=$(RUN_SH_SCRIPT)\ 
			$(STATIC_LIB1) $(STATIC_LIB2) $(STATIC_LIB3) $(DYNAMIC_DLL)

.PHONY: $(RUN_SH_SCRIPT)
$(RUN_SH_SCRIPT):	
	./testscript.sh
		#  test script example :
		#-------testscript.sh--------------------------	
		#| 		# bin/sh!	              |
		#|		cd foldername5		      |
		#|		pwd			      |
		#|		echo "Clean last build\n"     |
		#|		make clean		      |
		#|		./configure		      |
		#|		echo "call make \n"	      |
		#|		make			      |
		#----------------------------------------------

#.PHONY: $(STATIC_LIB1)
#$(STATIC_LIB1):
	#@$(MAKE) -C $@;
	
.PHONY: $(STATIC_LIB2)
$(STATIC_LIB2):
	@$(MAKE) -C $@;

.PHONY: $(STATIC_LIB3)
$(STATIC_LIB3):
	@$(MAKE) -C $@;

.PHONY: $(DYNAMIC_DLL)
$(DYNAMIC_DLL):
	@$(MAKE) -C $@;
	
.PHONY: all 
all:$(ALL_TARGETS)

.PHONY: clean
clean :
	rm -f $(STATIC_LIB1)/obj/*.o $(STATIC_LIB1)/lib/*.a
	rm -f $(STATIC_LIB2)/obj/*.o $(STATIC_LIB2)/lib/*.a
	rm -f $(STATIC_LIB3)/obj/*.o $(STATIC_LIB3)/lib/*.a
	rm -f $(DYNAMIC_DLL)/obj/*.o $(DYNAMIC_DLL)/bin/*.so