#

# Copyright (c) 2011, 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.  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.

#

AC_DEFUN([ADD_JVM_ARG_IF_OK],

[

    # Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)

    # If so, then append $1 to $2

    FOUND_WARN=`$3 $1 -version 2>&1 | grep -i warn`

    FOUND_VERSION=`$3 $1 -version 2>&1 | grep " version \""`

    if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then

        $2="[$]$2 $1"

    fi

])

AC_DEFUN([WHICHCMD],

[

    # Translate "gcc -E" into "`which gcc` -E" ie

    # extract the full path to the binary and at the

    # same time maintain any arguments passed to it.

    # The command MUST exist in the path, or else!

    tmp="[$]$1"

    car="${tmp%% *}"

    tmp="[$]$1 EOL"

    cdr="${tmp#* }"

    # On windows we want paths without spaces.

    if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

        WHICHCMD_SPACESAFE(car)

    else

        # "which" is not portable, but is used here

        # because we know that the command exists!

        car=`which $car`

    fi

    if test "x$cdr" != xEOL; then

        $1="$car ${cdr% *}"

    else

        $1="$car"

    fi

])

AC_DEFUN([SPACESAFE],

[

    # Fail with message $2 if var $1 contains a path with no spaces in it.

    # Unless on Windows, where we can rewrite the path.

    HAS_SPACE=`echo "[$]$1" | grep " "`

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

        if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

            $1=`$CYGPATH -s -m -a "[$]$1"`

            $1=`$CYGPATH -u "[$]$1"`            

        else

            AC_MSG_ERROR([You cannot have spaces in $2! "[$]$1"])

        fi

    fi

])

AC_DEFUN([WHICHCMD_SPACESAFE],

[

    # Translate long cygdrive or C:\sdfsf path

    # into a short mixed mode path that has no

    # spaces in it.

    tmp="[$]$1"

    if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

        tmp=`$CYGPATH -u "[$]$1"`

        tmp=`which "$tmp"`

        # If file exists with .exe appended, that's the real filename

        # and cygpath needs that to convert to short style path.

        if test -f "${tmp}.exe"; then

           tmp="${tmp}.exe"

        elif test -f "${tmp}.cmd"; then

           tmp="${tmp}.cmd"

        fi

        # Convert to C:/ mixed style path without spaces.

         tmp=`$CYGPATH -s -m "$tmp"`

    fi

    $1="$tmp"

])

AC_DEFUN([REMOVE_SYMBOLIC_LINKS],

[

    if test "x$OPENJDK_BUILD_OS" != xwindows; then

        # Follow a chain of symbolic links. Use readlink

        # where it exists, else fall back to horribly

        # complicated shell code.

        AC_PATH_PROG(READLINK, readlink)

        if test "x$READLINK_TESTED" != yes; then

            # On MacOSX there is a readlink tool with a different

            # purpose than the GNU readlink tool. Check the found readlink.

            ISGNU=`$READLINK --help 2>&1 | grep GNU`

            if test "x$ISGNU" = x; then

                 # A readlink that we do not know how to use.

                 # Are there other non-GNU readlinks out there?

                 READLINK_TESTED=yes

                 READLINK=

            fi

        fi

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

            $1=`$READLINK -f [$]$1`

        else

            STARTDIR=$PWD

            COUNTER=0

            DIR=`dirname [$]$1`

            FIL=`basename [$]$1`

            while test $COUNTER -lt 20; do

                ISLINK=`ls -l $DIR/$FIL | grep '\->' | sed -e 's/.*-> \(.*\)/\1/'`

                if test "x$ISLINK" == x; then

                    # This is not a symbolic link! We are done!

                    break

                fi

                # The link might be relative! We have to use cd to travel safely.

                cd $DIR

                cd `dirname $ISLINK`

                DIR=`pwd`

                FIL=`basename $ISLINK`

                let COUNTER=COUNTER+1

            done

            cd $STARTDIR

            $1=$DIR/$FIL

        fi

    fi

])

AC_DEFUN_ONCE([BASIC_INIT],

[

# Save the original command line. This is passed to us by the wrapper configure script.

AC_SUBST(CONFIGURE_COMMAND_LINE)

DATE_WHEN_CONFIGURED=`LANG=C date`

AC_SUBST(DATE_WHEN_CONFIGURED)

# Locate the directory of this script.

SCRIPT="[$]0"

REMOVE_SYMBOLIC_LINKS(SCRIPT)        

AUTOCONF_DIR=`dirname [$]0`

])

AC_DEFUN_ONCE([BASIC_SETUP_PATHS],

[

# Where is the source? It is located two levels above the configure script.

CURDIR="$PWD"

cd "$AUTOCONF_DIR/../.."

SRC_ROOT="`pwd`"

if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

    SRC_ROOT_LENGTH=`pwd|wc -m`

    if test $SRC_ROOT_LENGTH -gt 100; then

        AC_MSG_ERROR([Your base path is too long. It is $SRC_ROOT_LENGTH characters long, but only 100 is supported])

    fi

fi

AC_SUBST(SRC_ROOT)

cd "$CURDIR"

SPACESAFE(SRC_ROOT,[the path to the source root])

SPACESAFE(CURDIR,[the path to the current directory])

])

AC_DEFUN_ONCE([BASIC_SETUP_SEARCHPATH],

[

if test "x$OPENJDK_BUILD_OS" = "xsolaris"; then

    # Add extra search paths on solaris for utilities like ar and as etc...

    PATH="$PATH:/usr/ccs/bin:/usr/sfw/bin:/opt/csw/bin"

fi

])

AC_DEFUN_ONCE([BASIC_SETUP_PATH_SEP],

[

# For cygwin we need cygpath first, since it is used everywhere.

AC_PATH_PROG(CYGPATH, cygpath)

PATH_SEP=":"

if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

    if test "x$CYGPATH" = x; then

        AC_MSG_ERROR([Something is wrong with your cygwin installation since I cannot find cygpath.exe in your path])

    fi

    PATH_SEP=";"

fi

AC_SUBST(PATH_SEP)

])

AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],

[

AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],

	[use this as the name of the configuration, overriding the generated default])],

        [ CONF_NAME=${with_conf_name} ])

# Test from where we are running configure, in or outside of src root.

if test "x$CURDIR" = "x$SRC_ROOT" || test "x$CURDIR" = "x$SRC_ROOT/common" || test "x$CURDIR" = "x$SRC_ROOT/common/autoconf" || test "x$CURDIR" = "x$SRC_ROOT/common/makefiles" ; then

    # We are running configure from the src root.

    # Create a default ./build/target-variant-debuglevel output root.

    if test "x${CONF_NAME}" = x; then

        CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${ANDED_JVM_VARIANTS}-${DEBUG_LEVEL}"

    fi

    OUTPUT_ROOT="$SRC_ROOT/build/${CONF_NAME}"

    mkdir -p "$OUTPUT_ROOT"

    if test ! -d "$OUTPUT_ROOT"; then

        AC_MSG_ERROR([Could not create build directory $OUTPUT_ROOT])

    fi

else

    # We are running configure from outside of the src dir.

    # Then use the current directory as output dir!

    # If configuration is situated in normal build directory, just use the build

    # directory name as configuration name, otherwise use the complete path.

    if test "x${CONF_NAME}" = x; then

        CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${SRC_ROOT}/build/!!"`

    fi

    OUTPUT_ROOT="$CURDIR"

fi

SPACESAFE(OUTPUT_ROOT,[the path to the output root])

AC_SUBST(SPEC, $OUTPUT_ROOT/spec.gmk)

AC_SUBST(CONF_NAME, $CONF_NAME)

AC_SUBST(OUTPUT_ROOT, $OUTPUT_ROOT)

# Most of the probed defines are put into config.h

AC_CONFIG_HEADERS([$OUTPUT_ROOT/config.h:$AUTOCONF_DIR/config.h.in])

# The spec.gmk file contains all variables for the make system.

AC_CONFIG_FILES([$OUTPUT_ROOT/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])

# The spec.sh file contains variables for compare{images|-objects}.sh scrips.

AC_CONFIG_FILES([$OUTPUT_ROOT/spec.sh:$AUTOCONF_DIR/spec.sh.in])

# The generated Makefile knows where the spec.gmk is and where the source is.

# You can run make from the OUTPUT_ROOT, or from the top-level Makefile

# which will look for generated configurations

AC_CONFIG_FILES([$OUTPUT_ROOT/Makefile:$AUTOCONF_DIR/Makefile.in])

# Save the arguments given to us

echo "$CONFIGURE_COMMAND_LINE" > $OUTPUT_ROOT/configure-arguments

])

AC_DEFUN_ONCE([BASIC_SETUP_LOGGING],

[

# Setup default logging of stdout and stderr to build.log in the output root.

BUILD_LOG='$(OUTPUT_ROOT)/build.log'

BUILD_LOG_PREVIOUS='$(OUTPUT_ROOT)/build.log.old'

BUILD_LOG_WRAPPER='$(SH) $(SRC_ROOT)/common/bin/logger.sh $(BUILD_LOG)'

AC_SUBST(BUILD_LOG)

AC_SUBST(BUILD_LOG_PREVIOUS)

AC_SUBST(BUILD_LOG_WRAPPER)

])

#%%% Simple tools %%%

AC_DEFUN([BASIC_CHECK_FIND_DELETE],

[

    # Test if find supports -delete

    AC_MSG_CHECKING([if find supports -delete])

    FIND_DELETE="-delete"

    DELETEDIR=`mktemp -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)

    echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete

    TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`

    if test -f $DELETEDIR/TestIfFindSupportsDelete; then

        # No, it does not.

        rm $DELETEDIR/TestIfFindSupportsDelete

        FIND_DELETE="-exec rm \{\} \+"

        AC_MSG_RESULT([no])    

    else

        AC_MSG_RESULT([yes])    

    fi

    rmdir $DELETEDIR

])

AC_DEFUN([CHECK_NONEMPTY],

[

    # Test that variable $1 is not empty.

    if test "" = "[$]$1"; then AC_MSG_ERROR(Could not find translit($1,A-Z,a-z) !); fi

])

AC_DEFUN_ONCE([BASIC_SETUP_TOOLS],

[

# Start with tools that do not need have cross compilation support

# and can be expected to be found in the default PATH. These tools are

# used by configure. Nor are these tools expected to be found in the

# devkit from the builddeps server either, since they are

# needed to download the devkit. 

AC_PROG_AWK

CHECK_NONEMPTY(AWK)

AC_PATH_PROG(CAT, cat)

CHECK_NONEMPTY(CAT)

AC_PATH_PROG(CHMOD, chmod)

CHECK_NONEMPTY(CHMOD)

AC_PATH_PROG(CP, cp)

CHECK_NONEMPTY(CP)

AC_PATH_PROG(CPIO, cpio)

CHECK_NONEMPTY(CPIO)

AC_PATH_PROG(CUT, cut)

CHECK_NONEMPTY(CUT)

AC_PATH_PROG(DATE, date)

CHECK_NONEMPTY(DATE)

AC_PATH_PROG(DF, df)

CHECK_NONEMPTY(DF)

AC_PATH_PROG(DIFF, diff)

CHECK_NONEMPTY(DIFF)

# Warning echo is really, really unportable!!!!! Different

# behaviour in bash and dash and in a lot of other shells!

# Use printf for serious work! 

AC_PATH_PROG(ECHO, echo)

CHECK_NONEMPTY(ECHO)

AC_PROG_EGREP

CHECK_NONEMPTY(EGREP)

AC_PROG_FGREP

CHECK_NONEMPTY(FGREP)

AC_PATH_PROG(FIND, find)

CHECK_NONEMPTY(FIND)

BASIC_CHECK_FIND_DELETE

AC_SUBST(FIND_DELETE)

AC_PROG_GREP

CHECK_NONEMPTY(GREP)

AC_PATH_PROG(HEAD, head)

CHECK_NONEMPTY(HEAD)

AC_PATH_PROG(LN, ln)

CHECK_NONEMPTY(LN)

AC_PATH_PROG(LS, ls)

CHECK_NONEMPTY(LS)

AC_PATH_PROGS(MAKE, [gmake make])

CHECK_NONEMPTY(MAKE)

MAKE_VERSION=`$MAKE --version | head -n 1 | grep '3.8[[12346789]]'`

if test "x$MAKE_VERSION" = x; then

    AC_MSG_ERROR([You must use GNU make 3.81 or newer! Please put it in the path, or add e.g. MAKE=/opt/gmake3.81/make as argument to configure.])

fi

AC_PATH_PROG(MKDIR, mkdir)

CHECK_NONEMPTY(MKDIR)

AC_PATH_PROG(MV, mv)

CHECK_NONEMPTY(MV)

AC_PATH_PROGS(NAWK, [nawk gawk awk])

CHECK_NONEMPTY(NAWK)

AC_PATH_PROG(PRINTF, printf)

CHECK_NONEMPTY(PRINTF)

AC_PATH_PROG(THEPWDCMD, pwd)

AC_PATH_PROG(RM, rm)

CHECK_NONEMPTY(RM)

RM="$RM -f"

AC_PROG_SED

CHECK_NONEMPTY(SED)

AC_PATH_PROG(SH, sh)

CHECK_NONEMPTY(SH)

AC_PATH_PROG(SORT, sort)

CHECK_NONEMPTY(SORT)

AC_PATH_PROG(TAR, tar)

CHECK_NONEMPTY(TAR)

AC_PATH_PROG(TAIL, tail)

CHECK_NONEMPTY(TAIL)

AC_PATH_PROG(TEE, tee)

CHECK_NONEMPTY(TEE)

AC_PATH_PROG(TR, tr)

CHECK_NONEMPTY(TR)

AC_PATH_PROG(TOUCH, touch)

CHECK_NONEMPTY(TOUCH)

AC_PATH_PROG(WC, wc)

CHECK_NONEMPTY(WC)

AC_PATH_PROG(XARGS, xargs)

CHECK_NONEMPTY(XARGS)

AC_PATH_PROG(ZIP, zip)

CHECK_NONEMPTY(ZIP)

AC_PATH_PROG(UNZIP, unzip)

CHECK_NONEMPTY(UNZIP)

AC_PATH_PROG(LDD, ldd)

if test "x$LDD" = "x"; then

    # List shared lib dependencies is used for

    # debug output and checking for forbidden dependencies.

    # We can build without it.

    LDD="true"

fi

AC_PATH_PROG(OTOOL, otool)

if test "x$OTOOL" = "x"; then

   OTOOL="true"

fi

AC_PATH_PROG(READELF, readelf)

AC_PATH_PROG(EXPR, expr)

CHECK_NONEMPTY(EXPR)

AC_PATH_PROG(FILE, file)

CHECK_NONEMPTY(FILE)

AC_PATH_PROG(HG, hg)

])

AC_DEFUN_ONCE([BASIC_COMPILE_UNCYGDRIVE],

[

# When using cygwin, we need a wrapper binary that renames

# /cygdrive/c/ arguments into c:/ arguments and peeks into

# @files and rewrites these too! This wrapper binary is

# called uncygdrive.exe.

UNCYGDRIVE=

if test "x$OPENJDK_BUILD_OS" = xwindows; then

    AC_MSG_CHECKING([if uncygdrive can be created])

    UNCYGDRIVE_SRC=`$CYGPATH -m $SRC_ROOT/common/src/uncygdrive.c`

    rm -f $OUTPUT_ROOT/uncygdrive*

    UNCYGDRIVE=`$CYGPATH -m $OUTPUT_ROOT/uncygdrive.exe`

    cd $OUTPUT_ROOT

    $CC $UNCYGDRIVE_SRC /Fe$UNCYGDRIVE > $OUTPUT_ROOT/uncygdrive1.log 2>&1

    cd $CURDIR

    if test ! -x $OUTPUT_ROOT/uncygdrive.exe; then 

        AC_MSG_RESULT([no])

        cat $OUTPUT_ROOT/uncygdrive1.log

        AC_MSG_ERROR([Could not create $OUTPUT_ROOT/uncygdrive.exe])

    fi

    AC_MSG_RESULT([$UNCYGDRIVE])

    AC_MSG_CHECKING([if uncygdrive.exe works])

    cd $OUTPUT_ROOT

    $UNCYGDRIVE $CC $SRC_ROOT/common/src/uncygdrive.c /Fe$OUTPUT_ROOT/uncygdrive2.exe > $OUTPUT_ROOT/uncygdrive2.log 2>&1 

    cd $CURDIR

    if test ! -x $OUTPUT_ROOT/uncygdrive2.exe; then 

        AC_MSG_RESULT([no])

        cat $OUTPUT_ROOT/uncygdrive2.log

        AC_MSG_ERROR([Uncygdrive did not work!])

    fi

    AC_MSG_RESULT([yes])

    rm -f $OUTPUT_ROOT/uncygdrive?.??? $OUTPUT_ROOT/uncygdrive.obj

fi

AC_SUBST(UNCYGDRIVE)

])

# Check if build directory is on local disk.

# Argument 1: directory to test

# Argument 2: what to do if it is on local disk

# Argument 3: what to do otherwise (remote disk or failure)

AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],

[

	# df -l lists only local disks; if the given directory is not found then

	# a non-zero exit code is given

	if $DF -l $1 > /dev/null 2>&1; then

          $2

        else

          $3

        fi

])

AC_DEFUN_ONCE([BASIC_TEST_USABILITY_ISSUES],

[

AC_MSG_CHECKING([if build directory is on local disk])

BASIC_CHECK_DIR_ON_LOCAL_DISK($OUTPUT_ROOT,

  [OUTPUT_DIR_IS_LOCAL="yes"],

  [OUTPUT_DIR_IS_LOCAL="no"])

AC_MSG_RESULT($OUTPUT_DIR_IS_LOCAL)

# Check if the user has any old-style ALT_ variables set.

FOUND_ALT_VARIABLES=`env | grep ^ALT_`

# Before generating output files, test if they exist. If they do, this is a reconfigure.

# Since we can't properly handle the dependencies for this, warn the user about the situation

if test -e $OUTPUT_ROOT/spec.gmk; then

  IS_RECONFIGURE=yes

else

  IS_RECONFIGURE=no

fi

if test -e $SRC_ROOT/build/.hide-configure-performance-hints; then

  HIDE_PERFORMANCE_HINTS=yes

else

  HIDE_PERFORMANCE_HINTS=no

  # Hide it the next time around...

  $TOUCH $SRC_ROOT/build/.hide-configure-performance-hints > /dev/null 2>&1

fi

])