--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make/autoconf/autogen.sh	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,85 @@
+#!/bin/bash
+#
+# Copyright (c) 2011, 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.
+#
+# 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.
+#
+
+generate_configure_script() {
+  # First create a header
+  cat > $1 << EOT
+#!/bin/bash
+#
+# ##########################################################
+# ### THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT. ###
+# ##########################################################
+#
+EOT
+  # Then replace "magic" variables in configure.ac and append the output
+  # from autoconf. $2 is either cat (just a no-op) or a filter.
+  cat $script_dir/configure.ac | sed -e "s|@DATE_WHEN_GENERATED@|$TIMESTAMP|" | \
+      eval $2 | ${AUTOCONF} -W all -I$script_dir - >> $1
+  rm -rf autom4te.cache
+}
+
+script_dir=`dirname $0`
+
+# Create a timestamp as seconds since epoch
+if test "x`uname -s`" = "xSunOS"; then
+  TIMESTAMP=`date +%s`
+  if test "x$TIMESTAMP" = "x%s"; then
+    # date +%s not available on this Solaris, use workaround from nawk(1):
+    TIMESTAMP=`nawk 'BEGIN{print srand()}'`
+  fi
+else
+  TIMESTAMP=`date +%s`
+fi
+
+if test "x$CUSTOM_CONFIG_DIR" = "x"; then
+  topdir=`cd $script_dir/../..  >/dev/null && pwd`
+  custom_script_dir="$topdir/closed/autoconf"
+else
+  custom_script_dir=$CUSTOM_CONFIG_DIR
+fi
+
+custom_hook=$custom_script_dir/custom-hook.m4
+
+AUTOCONF="`which autoconf 2> /dev/null | grep -v '^no autoconf in'`"
+
+if test "x${AUTOCONF}" = x; then
+  echo "You need autoconf installed to be able to regenerate the configure script"
+  echo "Error: Cannot find autoconf" 1>&2
+  exit 1
+fi
+
+autoconf_version=`$AUTOCONF --version | head -1`
+echo "Using autoconf at ${AUTOCONF} [$autoconf_version]"
+
+echo "Generating generated-configure.sh"
+generate_configure_script "$script_dir/generated-configure.sh" 'cat'
+
+if test -e $custom_hook; then
+  # We have custom sources available; also generate configure script
+  # with custom hooks compiled in.
+  echo "Generating custom generated-configure.sh"
+  generate_configure_script "$custom_script_dir/generated-configure.sh" 'sed -e "s|#CUSTOM_AUTOCONF_INCLUDE|m4_include([$custom_hook])|"'
+else
+  echo "(No custom hook found at $custom_hook)"
+fi