icuSources/config/gmakever.mk

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