#!/bin/sh

#

# 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.

#

# This is a wrapper for the config.guess from autoconf. The latter does not

# properly detect 64 bit systems on all platforms. Instead of patching the

# autoconf system (which might easily get lost in a future update), we wrap it

# and fix the broken property, if needed.

DIR=`dirname $0`

OUT=`. $DIR/autoconf-config.guess`

# Test and fix solaris on x86_64

echo $OUT | grep i386-pc-solaris > /dev/null 2> /dev/null

if test $? = 0; then

  # isainfo -n returns either i386 or amd64

  REAL_CPU=`isainfo -n`

  OUT=$REAL_CPU`echo $OUT | sed -e 's/[^-]*//'`

fi

# Test and fix solaris on sparcv9

echo $OUT | grep sparc-sun-solaris > /dev/null 2> /dev/null

if test $? = 0; then

  # isainfo -n returns either sparc or sparcv9

  REAL_CPU=`isainfo -n`

  OUT=$REAL_CPU`echo $OUT | sed -e 's/[^-]*//'`

fi

# Test and fix cygwin on x86_64

echo $OUT | grep 86-pc-cygwin > /dev/null 2> /dev/null

if test $? != 0; then

  echo $OUT | grep 86-pc-mingw > /dev/null 2> /dev/null

fi

if test $? = 0; then

  case `echo $PROCESSOR_IDENTIFIER | cut -f1 -d' '` in

    intel64|Intel64|INTEL64|em64t|EM64T|amd64|AMD64|8664|x86_64)

      REAL_CPU=x86_64

      OUT=$REAL_CPU`echo $OUT | sed -e 's/[^-]*//'`

      ;;

  esac

fi

# Test and fix architecture string on AIX

# On AIX 'config.guess' returns 'powerpc' as architecture but 'powerpc' is

# implicitely handled as 32-bit architecture in 'platform.m4' so we check

# for the kernel mode rewrite it to 'powerpc64' if we'Re running in 64-bit mode.

# The check could also be done with `/usr/sbin/prtconf | grep "Kernel Type" | grep "64-bit"`

echo $OUT | grep powerpc-ibm-aix > /dev/null 2> /dev/null

if test $? = 0; then

  if [ -x /bin/getconf ] ; then

    KERNEL_BITMODE=`getconf KERNEL_BITMODE`

    if  [ "$KERNEL_BITMODE" = "32" ]; then

      KERNEL_BITMODE=""

    fi

  fi

  OUT=powerpc$KERNEL_BITMODE`echo $OUT | sed -e 's/[^-]*//'`

fi

# Test and fix little endian PowerPC64.

# TODO: should be handled by autoconf-config.guess. 

if [ "x$OUT" = x ]; then

  if [ `uname -m` = ppc64le ]; then

    if [ `uname -s` = Linux ]; then

      OUT=powerpc64le-unknown-linux-gnu

    fi

  fi

fi

echo $OUT