Fix NF Makefiles' NFLib and ONVMHelper Includes (#279)

With the introduction of NF config file support in dca9f75, the Scaling
Example and NDPI Stats NFs' Makefiles were not updated to include and
link the correct paths/libs to build cJSON dependencies correctly.

This change adds the appropriate CFLAGS and LDFLAGS to build things.

examples/ndpi_stats/Makefile

@@ -58,13 +58,15 @@ SRCS-y := ndpi_stats.c ndpi_util.c
 ONVM= $(SRCDIR)/../../onvm
 
 CFLAGS += -O3 $(USER_FLAGS)
-#CFLAGS += $(WERROR_FLAGS) -O3 $(USER_FLAGS)
-CFLAGS += -I$(ONVM)/onvm_nflib
-LDFLAGS += $(ONVM)/onvm_nflib/$(RTE_TARGET)/libonvm.a
 
 CFLAGS += -I$(NDPI_HOME)/src/include
 LDFLAGS += $(NDPI_HOME)/lib/libndpi.a
 
+CFLAGS += -I$(ONVM)/onvm_nflib
+CFLAGS += -I$(ONVM)/lib
+LDFLAGS += $(ONVM)/onvm_nflib/$(RTE_TARGET)/libonvm.a
+LDFLAGS += $(ONVM)/lib/$(RTE_TARGET)/lib/libonvmhelper.a -lm
+
 LDFLAGS += -lpcap
 
 include $(RTE_SDK)/mk/rte.extapp.mk

examples/scaling_example/Makefile

@@ -55,7 +55,9 @@ ONVM ?= $(SRCDIR)/../../onvm
 CFLAGS += $(WERROR_FLAGS) -O3 $(USER_FLAGS)
 
 CFLAGS += -I$(ONVM)/onvm_nflib
+CFLAGS += -I$(ONVM)/lib
 LDFLAGS += $(ONVM)/onvm_nflib/$(RTE_TARGET)/libonvm.a
+LDFLAGS += $(ONVM)/lib/$(RTE_TARGET)/lib/libonvmhelper.a -lm
 
 # workaround for a gcc bug with noreturn attribute
 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603