| ## -*-makefile-*- | |
| # Copyright (C) 2016 and later: Unicode, Inc. and others. | |
| # License & terms of use: http://www.unicode.org/copyright.html | |
| #****************************************************************************** | |
| # Copyright (C) 2008-2011, International Business Machines | |
| # Corporation and others. All Rights Reserved. | |
| #****************************************************************************** | |
| # Make sure we have the right version of Make. | |
| at_least=3.80 | |
| ifeq ($(MACHTYPE),i370-ibm-mvs) | |
| at_least=3.79.1 | |
| endif | |
| ifeq ($(PLATFORM),OS390) | |
| at_least=3.79.1 | |
| endif | |
| ifeq ($(MACHTYPE),powerpc-ibm-os400) | |
| at_least=3.77 | |
| endif | |
| latest_a=$(firstword $(sort $(MAKE_VERSION) $(at_least))) | |
| ifneq ($(at_least),$(latest_a)) | |
| err: | |
| @echo "ERROR: $(MAKE_VERSION) - too old, please upgrade to at least $(at_least)" | |
| @false | |
| else | |
| ok: | |
| @echo "$(MAKE_VERSION) (we wanted at least $(at_least))" | |
| endif | |