#!/bin/bash

#

# Copyright (c) 2012, 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.

#

if test "x$BASH_VERSION" = x; then

  echo This script needs bash to run.

  echo It is recommended to use the configure script in the source tree root instead.

  exit 1

fi

CONFIGURE_COMMAND_LINE="$@"

conf_script_dir=`dirname $0`

if [ "$CUSTOM_CONFIG_DIR" = "" ]; then

  conf_custom_script_dir="$conf_script_dir/../../jdk/make/closed/autoconf"

else

  conf_custom_script_dir=$CUSTOM_CONFIG_DIR

fi

###

### Test that the generated configure is up-to-date

###

run_autogen_or_fail() {

  if test "x`which autoconf 2> /dev/null`" = x; then

    echo "Cannot locate autoconf, unable to correct situation."

    echo "Please install autoconf and run 'bash autogen.sh' to update the generated files."

    echo "Error: Cannot continue" 1>&2

    exit 1

  else

    echo "Running autogen.sh to correct the situation"

    bash $conf_script_dir/autogen.sh

  fi

}

check_autoconf_timestamps() {

  for file in $conf_script_dir/configure.ac $conf_script_dir/*.m4 ; do

    if test $file -nt $conf_script_dir/generated-configure.sh; then

      echo "Warning: The configure source files is newer than the generated files."

      run_autogen_or_fail

    fi

  done

  if test -e $conf_custom_script_dir/generated-configure.sh; then

    # If custom source configure is available, make sure it is up-to-date as well.

    for file in $conf_script_dir/configure.ac $conf_script_dir/*.m4 $conf_custom_script_dir/*.m4; do

      if test $file -nt $conf_custom_script_dir/generated-configure.sh; then

        echo "Warning: The configure source files is newer than the custom generated files."

        run_autogen_or_fail

      fi

    done

  fi

}

check_hg_updates() {

  if test "x`which hg 2> /dev/null`" != x; then

    conf_updated_autoconf_files=`cd $conf_script_dir && hg status -mard 2> /dev/null | grep autoconf`

    if test "x$conf_updated_autoconf_files" != x; then

      echo "Configure source code has been updated, checking time stamps"

      check_autoconf_timestamps

    fi

    if test -e $conf_custom_script_dir; then

      # If custom source configure is available, make sure it is up-to-date as well.

      conf_custom_updated_autoconf_files=`cd $conf_custom_script_dir && hg status -mard 2> /dev/null | grep autoconf`

      if test "x$conf_custom_updated_autoconf_files" != x; then

        echo "Configure custom source code has been updated, checking time stamps"

        check_autoconf_timestamps

      fi

    fi

  fi

}

# Check for local changes

check_hg_updates

if test -e $conf_custom_script_dir/generated-configure.sh; then

  # Test if open configure is newer than custom configure, if so, custom needs to

  # be regenerated. This test is required to ensure consistency with custom source.

  conf_open_configure_timestamp=`grep DATE_WHEN_GENERATED= $conf_script_dir/generated-configure.sh  | cut -d"=" -f 2`

  conf_custom_configure_timestamp=`grep DATE_WHEN_GENERATED= $conf_custom_script_dir/generated-configure.sh  | cut -d"=" -f 2`

  if test $conf_open_configure_timestamp -gt $conf_custom_configure_timestamp; then

    echo "Warning: The generated configure file contains changes not present in the custom generated file."

    run_autogen_or_fail

  fi

fi

# Autoconf calls the configure script recursively sometimes.

# Don't start logging twice in that case

if test "x$conf_debug_configure" = xtrue; then

  conf_debug_configure=recursive

fi

###

### Process command-line arguments

###

conf_processed_arguments=()

conf_openjdk_target=

for conf_option

do

  case $conf_option in

    --openjdk-target=*)

      conf_openjdk_target=`expr "X$conf_option" : '[^=]*=\(.*\)'`

      continue ;;

    --debug-configure)

      if test "x$conf_debug_configure" != xrecursive; then

        conf_debug_configure=true

        export conf_debug_configure

      fi

      continue ;;

    *)

      conf_processed_arguments=("${conf_processed_arguments[@]}" "$conf_option") ;;

  esac

  case $conf_option in

    -build | --build | --buil | --bui | --bu |-build=* | --build=* | --buil=* | --bui=* | --bu=*)

      conf_legacy_crosscompile="$conf_legacy_crosscompile $conf_option" ;;

    -target | --target | --targe | --targ | --tar | --ta | --t | -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)

      conf_legacy_crosscompile="$conf_legacy_crosscompile $conf_option" ;;

    -host | --host | --hos | --ho | -host=* | --host=* | --hos=* | --ho=*)

      conf_legacy_crosscompile="$conf_legacy_crosscompile $conf_option" ;;

    -help | --help | --hel | --he | -h)

      conf_print_help=true ;;

  esac

done

if test "x$conf_legacy_crosscompile" != "x"; then

  if test "x$conf_openjdk_target" != "x"; then

    echo "Error: Specifying --openjdk-target together with autoconf"

    echo "legacy cross-compilation flags is not supported."

    echo "You specified: --openjdk-target=$conf_openjdk_target and $conf_legacy_crosscompile."

    echo "The recommended use is just --openjdk-target."

    exit 1

  else

    echo "Warning: You are using legacy autoconf cross-compilation flags."

    echo "It is recommended that you use --openjdk-target instead."

    echo ""

  fi

fi

if test "x$conf_openjdk_target" != "x"; then

  conf_build_platform=`sh $conf_script_dir/build-aux/config.guess`

  conf_processed_arguments=("--build=$conf_build_platform" "--host=$conf_openjdk_target" "--target=$conf_openjdk_target" "${conf_processed_arguments[@]}")

fi

# Make configure exit with error on invalid options as default.

# Can be overridden by --disable-option-checking, since we prepend our argument

# and later options override earlier.

conf_processed_arguments=("--enable-option-checking=fatal" "${conf_processed_arguments[@]}")

###

### Call the configure script

###

if test -e $conf_custom_script_dir/generated-configure.sh; then

  # Custom source configure available; run that instead

  echo Running custom generated-configure.sh

  conf_script_to_run=$conf_custom_script_dir/generated-configure.sh

else

  echo Running generated-configure.sh

  conf_script_to_run=$conf_script_dir/generated-configure.sh

fi

if test "x$conf_debug_configure" != x; then

  # Turn on shell debug output if requested (initial or recursive)

  set -x

fi

if test "x$conf_debug_configure" = xtrue; then

  # Turn on logging, but don't turn on twice when called recursive

  conf_debug_logfile=./debug-configure.log

  (exec 3>&1 ; (. $conf_script_to_run "${conf_processed_arguments[@]}" 2>&1 1>&3 ) | tee -a $conf_debug_logfile 1>&2 ; exec 3>&-) | tee -a $conf_debug_logfile

else

  ( . $conf_script_to_run "${conf_processed_arguments[@]}" )

fi

conf_result_code=$?

###

### Post-processing

###

if test $conf_result_code -eq 0; then

  if test "x$conf_print_help" = xtrue; then

    cat <<EOT

Additional (non-autoconf) OpenJDK Options:

  --openjdk-target=TARGET cross-compile with TARGET as target platform

                          (i.e. the one you will run the resulting binary on).

                          Equivalent to --host=TARGET --target=TARGET

                          --build=<current platform>

  --debug-configure       Run the configure script with additional debug

                          logging enabled.

Please be aware that, when cross-compiling, the OpenJDK configure script will

generally use 'target' where autoconf traditionally uses 'host'.

EOT

  fi

else

  echo configure exiting with result code $conf_result_code

fi

exit $conf_result_code