--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make/gendata/GendataTZDB.gmk	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,42 @@
+#
+# Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+GENDATA_TZDB :=
+
+#
+# Time zone data file creation
+#
+TZDATA_DIR := $(JDK_TOPDIR)/make/data/tzdata
+TZDATA_TZFILE := africa antarctica asia australasia europe northamerica pacificnew southamerica backward etcetera gmt jdk11_backward
+TZDATA_TZFILES := $(addprefix $(TZDATA_DIR)/,$(TZDATA_TZFILE))
+
+GENDATA_TZDB_DAT := $(SUPPORT_OUTPUTDIR)/modules_libs/$(MODULE)/tzdb.dat
+
+$(GENDATA_TZDB_DAT): $(TZDATA_TZFILES)
+	$(RM) $(GENDATA_TZDB_DAT)
+	$(MKDIR) -p $(@D)
+	$(TOOL_TZDB) -srcdir $(TZDATA_DIR) -dstfile $(GENDATA_TZDB_DAT) $(TZDATA_TZFILE)
+
+TARGETS += $(GENDATA_TZDB_DAT)