michael@0: ## -*-makefile-*-
michael@0: #******************************************************************************
michael@0: #   Copyright (C) 2008-2011, International Business Machines
michael@0: #   Corporation and others.  All Rights Reserved.
michael@0: #******************************************************************************
michael@0: # Make sure we have the right version of Make.
michael@0: 
michael@0: at_least=3.80
michael@0: ifeq ($(MACHTYPE),i370-ibm-mvs)
michael@0: at_least=3.79.1
michael@0: endif
michael@0: ifeq ($(PLATFORM),OS390)
michael@0: at_least=3.79.1
michael@0: endif
michael@0: ifeq ($(MACHTYPE),powerpc-ibm-os400)
michael@0: at_least=3.77
michael@0: endif
michael@0: 
michael@0: latest_a=$(firstword $(sort $(MAKE_VERSION) $(at_least)))
michael@0: 
michael@0: ifneq ($(at_least),$(latest_a))
michael@0: err:
michael@0: 	@echo "ERROR: $(MAKE_VERSION) - too old, please upgrade to at least $(at_least)"
michael@0: 	@false
michael@0: else
michael@0: ok:
michael@0: 	@echo "$(MAKE_VERSION) (we wanted at least $(at_least))"
michael@0: endif
michael@0: