+OCAMLCPACKAGES += -package csv
+endif
+ifneq ($(OCAML_PKG_calendar),no)
+ifeq ($(is_calendar2),no)
+OBJS += virt_top_calendar1.cmo
+OCAMLCPACKAGES += -package calendar
+else
+OBJS += virt_top_calendar2.cmo
+OCAMLCPACKAGES += -package calendar
+endif