add makefile for plat root

plat/Makefile

@@ -0,0 +1,27 @@
+# Makefile for platform of EMS
+
+PLATDIR = ../plat
+BINDIR  = ../bin
+PLATMODULELIST = 8ecp aif bicc debug haepub iptrans isdn isup m2ua mgc mgcp mgc_v2 mtp3 pal public rtp sccp scf sip smpp snmp tcap xapp
+
+# default all
+all: $(PLATMODULELIST)
+
+# plat module list
+$(PLATMODULELIST):
+	@echo "====================== make $@ ======================="
+	@cd $(PLATDIR)/$@ && $(MAKE)
+	@if [ $@ = "iptrans" ]; then \
+		./generate_iptrans; \
+		cp -f ./iptrans $(BINDIR); \
+	fi
+	@cd -
+
+# clean
+clean:
+	@for mod in $(PLATMODULELIST); do \
+		echo "====================== clean $$mod ======================="; \
+		cd $(PLATDIR)/$$mod && $(MAKE) clean; \
+		cd -; \
+	done
+