icuSources/config/gmakever.mk

   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