autogen.sh revision 976:6e29cd9ac2b4 
1#!/bin/bash
2#
3# Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
4# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5#
6# This code is free software; you can redistribute it and/or modify it
7# under the terms of the GNU General Public License version 2 only, as
8# published by the Free Software Foundation.
9#
10# This code is distributed in the hope that it will be useful, but WITHOUT
11# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13# version 2 for more details (a copy is included in the LICENSE file that
14# accompanied this code).
15#
16# You should have received a copy of the GNU General Public License version
17# 2 along with this work; if not, write to the Free Software Foundation,
18# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19#
20# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21# or visit www.oracle.com if you need additional information or have any
22# questions.
23#
24
25generate_configure_script() {
26  # First create a header
27  cat > $1 << EOT
28#!/bin/bash
29#
30# ##########################################################
31# ### THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT. ###
32# ##########################################################
33#
34EOT
35  # Then replace "magic" variables in configure.ac and append the output
36  # from autoconf. $2 is either cat (just a no-op) or a filter.
37  cat $script_dir/configure.ac | sed -e "s|@DATE_WHEN_GENERATED@|$TIMESTAMP|" | \
38      eval $2 | ${AUTOCONF} -W all -I$script_dir - >> $1
39  rm -rf autom4te.cache
40}
41
42script_dir=`dirname $0`
43
44# Create a timestamp as seconds since epoch
45if test "x`uname -s`" = "xSunOS"; then
46  TIMESTAMP=`date +%s`
47  if test "x$TIMESTAMP" = "x%s"; then
48    # date +%s not available on this Solaris, use workaround from nawk(1):
49    TIMESTAMP=`nawk 'BEGIN{print srand()}'`
50  fi
51else
52  TIMESTAMP=`date +%s`
53fi
54
55if test "x$CUSTOM_CONFIG_DIR" = "x"; then
56  topdir=`cd $script_dir/../..  >/dev/null && pwd`
57  custom_script_dir="$topdir/closed/autoconf"
58else
59  custom_script_dir=$CUSTOM_CONFIG_DIR
60fi
61
62custom_hook=$custom_script_dir/custom-hook.m4
63
64AUTOCONF="`which autoconf 2> /dev/null | grep -v '^no autoconf in'`"
65
66if test "x${AUTOCONF}" = x; then
67  echo "You need autoconf installed to be able to regenerate the configure script"
68  echo "Error: Cannot find autoconf" 1>&2
69  exit 1
70fi
71
72autoconf_version=`$AUTOCONF --version | head -1`
73echo "Using autoconf at ${AUTOCONF} [$autoconf_version]"
74
75echo "Generating generated-configure.sh"
76generate_configure_script "$script_dir/generated-configure.sh" 'cat'
77
78if test -e $custom_hook; then
79  # We have custom sources available; also generate configure script
80  # with custom hooks compiled in.
81  echo "Generating custom generated-configure.sh"
82  generate_configure_script "$custom_script_dir/generated-configure.sh" 'sed -e "s|#CUSTOM_AUTOCONF_INCLUDE|m4_include([$custom_hook])|"'
83else
84  echo "(No custom hook found at $custom_hook)"
85fi
86