+depend:: $(DEPEND_FILES)
+ $(H)echo " OCAMLDEP"
+ $(H)$(OCAMLDEP) $(INTERFACE_FILES) $(IMPLEMENTATION_FILES) > .depend
+depend.opt:: $(DEPEND_FILES)
+ $(H)echo " OCAMLDEP -native"
+ $(H)$(OCAMLDEP) -native \
+ $(INTERFACE_FILES) $(IMPLEMENTATION_FILES) > .depend.opt