add releng-build-examples target for myself

Makefile

@@ -185,5 +185,13 @@ clean:
 	find . -type f -name \*.o -exec rm {} \;
 	rm -rf $(KORE) $(OBJDIR) kore.features
 	$(MAKE) -C kodev clean
+	$(MAKE) -C examples clean
+
+releng-build-examples:
+	rm -rf /tmp/kore_releng
+	$(MAKE) clean
+	$(MAKE) PYTHON=1 PGSQL=1 TASKS=1 PREFIX=/tmp/kore_releng
+	$(MAKE) install PREFIX=/tmp/kore_releng
+	$(MAKE) -C examples
 
 .PHONY: all clean force