1 ## -*-makefile-*- 2 # Copyright (C) 2016 and later: Unicode, Inc. and others. 3 # License & terms of use: http://www.unicode.org/copyright.html 4 #****************************************************************************** 5 # Copyright (C) 2008-2011, International Business Machines 6 # Corporation and others. All Rights Reserved. 7 #****************************************************************************** 8 # Make sure we have the right version of Make. 9 10 at_least=3.80 11 ifeq ($(MACHTYPE),i370-ibm-mvs) 12 at_least=3.79.1 13 endif 14 ifeq ($(PLATFORM),OS390) 15 at_least=3.79.1 16 endif 17 ifeq ($(MACHTYPE),powerpc-ibm-os400) 18 at_least=3.77 19 endif 20 21 latest_a=$(firstword $(sort $(MAKE_VERSION) $(at_least))) 22 23 ifneq ($(at_least),$(latest_a)) 24 err: 25 @echo "ERROR: $(MAKE_VERSION) - too old, please upgrade to at least $(at_least)" 26 @false 27 else 28 ok: 29 @echo "$(MAKE_VERSION) (we wanted at least $(at_least))" 30 endif 31 32
