#! /bin/sh

# This file is (in principle) common to ALL GNU software.

# The presence of a machine in this file suggests that SOME GNU software

# can handle that machine.  It does not imply ALL GNU software can.

#

# This file is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program 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 for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330,

# Boston, MA 02111-1307, USA.

# As a special exception to the GNU General Public License, if you

# distribute this file as part of a program that contains a

# configuration script generated by Autoconf, you may include it under

# the same distribution terms that you use for the rest of that program.

# Configuration subroutine to validate and canonicalize a configuration type.

# Supply the specified configuration type as an argument.

# If it is invalid, we print an error message on stderr and exit with code 1.

# Otherwise, we print the canonical config type on stdout and succeed.

# This file is supposed to be the same for all GNU packages

# and recognize all the CPU types, system types and aliases

# that are meaningful with *any* GNU software.

# Each package is responsible for reporting which valid configurations

# it does not support.  The user should be able to distinguish

# a failure to support a valid configuration from a meaningless

# configuration.

# The goal of this file is to map all the various variations of a given

# machine specification into a single specification in the form:

#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM

# or in some cases, the newer four-part form:

#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM

# It is wrong to echo any other type of specification.

esac

# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).

# Here we must recognize all the valid KERNEL-OS combinations.

maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`

case $maybe_os in

    os=-$maybe_os

    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`

    ;;

  *)

    basic_machine=`echo $1 | sed 's/-[^-]*$//'`

    if [ $basic_machine != $1 ]

    then os=`echo $1 | sed 's/.*-/-/'`

    else os=; fi

    ;;

esac

### Let's recognize common machines as not being operating systems so

### that things like config.sub decstation-3100 work.  We also

### recognize some manufacturers as not being operating systems, so we

### can provide default operating systems below.

case $os in

	-sun*os*)

		# Prevent following clause from handling this invalid input.

		;;

	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \

	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \

	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \

	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\

	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \

	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \

		os=

		basic_machine=$1

		;;

	-sim | -cisco | -oki | -wec | -winbond)

		os=

		basic_machine=$1

		;;

	-scout)

		;;

	-wrs)

		basic_machine=$1

		;;

	-hiux*)

		os=-hiuxwe2

		;;

	-sco5)

		os=-sco3.2v5

		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`

		;;

	-sco4)

		os=-sco3.2v4

		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`

		;;

	-sco3.2.[4-9]*)

		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`

		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`

		;;

	-sco3.2v[4-9]*)

		# Don't forget version if it is 3.2v4 or newer.

		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`

		;;

	-sco*)

		os=-sco3.2v2

		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`

		;;

	-udk*)

		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`

		;;

	-isc)

		os=-isc2.2

		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`

		;;

	-clix*)

		basic_machine=clipper-intergraph

		;;

	-isc*)

		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`

		;;

	-lynx*)

		os=-lynxos

		;;

	-ptx*)

		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`

		;;

	-windowsnt*)

		os=`echo $os | sed -e 's/windowsnt/winnt/'`

		;;

	-psos*)

		os=-psos

		;;

esac

# Decode aliases for certain CPU-COMPANY combinations.

case $basic_machine in

	# Recognize the basic CPU types without company name.

	# Some are omitted here because they have special meanings below.

		| 580 | i960 | h8300 \

		| hppa | hppa1.0 | hppa1.1 | hppa2.0 | hppa2.0w | hppa2.0n \

		| mips64orion | mips64orionel | mipstx39 | mipstx39el \

		| mips64vr4300 | mips64vr4300el | mips64vr4100 | mips64vr4100el \

		basic_machine=$basic_machine-unknown

		;;

		;;

	# We use `pc' rather than `unknown'

	# because (1) that's what they normally are, and

	# (2) the word "unknown" tends to confuse beginning users.

	  basic_machine=$basic_machine-pc

	  ;;

	# Object if more than one company name word.

	*-*-*)

		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2

		exit 1

		;;

	# Recognize the basic CPU types with company name.

	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \

	      | power-* | none-* | 580-* | cray2-* | h8300-* | h8500-* | i960-* \

	      | xmp-* | ymp-* \

	      | we32k-* | cydra-* | ns16k-* | pn-* | np1-* | xps100-* \

	      | clipper-* | orion-* \

	      | sparc64-* | sparcv9-* | sparc86x-* | mips16-* | mips64-* | mipsel-* \

	      | mips64el-* | mips64orion-* | mips64orionel-* \

	      | mips64vr4100-* | mips64vr4100el-* | mips64vr4300-* | mips64vr4300el-* \

	      | m88110-* | m680[01234]0-* | m683?2-* | m68360-* | z8k-* | d10v-* \

		;;

	# Recognize the various machine names and aliases which stand

	# for a CPU type and a company and sometimes even an OS.

	386bsd)

		basic_machine=i386-unknown

		os=-bsd

		;;

	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)

		basic_machine=m68000-att

		;;

	3b*)

		basic_machine=we32k-att

		;;

	a29khif)

		basic_machine=a29k-amd

		os=-udi

		;;

	adobe68k)

		basic_machine=m68010-adobe

		os=-scout

		;;

	alliant | fx80)

		basic_machine=fx80-alliant

		;;

	altos | altos3068)

		basic_machine=m68k-altos

		;;

	am29k)

		basic_machine=a29k-none

		os=-bsd

		;;

	amdahl)

		basic_machine=580-amdahl

		os=-sysv

		;;

	amiga | amiga-*)

		;;

	amigaos | amigados)

		os=-amigaos

		;;

	amigaunix | amix)

		os=-sysv4

		;;

	apollo68)

		basic_machine=m68k-apollo

		os=-sysv

		;;

	apollo68bsd)

		basic_machine=m68k-apollo

		os=-bsd

		;;

	aux)

		basic_machine=m68k-apple

		os=-aux

		;;

	balance)

		basic_machine=ns32k-sequent

		os=-dynix

		;;

	convex-c1)

		basic_machine=c1-convex

		os=-bsd

		;;

	convex-c2)

		basic_machine=c2-convex

		os=-bsd

		;;

	convex-c32)

		basic_machine=c32-convex

		os=-bsd

		;;

	convex-c34)

		basic_machine=c34-convex

		os=-bsd

		;;

	convex-c38)

		basic_machine=c38-convex

		os=-bsd

		;;

	cray | ymp)

		basic_machine=ymp-cray

		os=-unicos

		;;

	cray2)

		basic_machine=cray2-cray

		os=-unicos

		;;

		os=-unicos

		;;

	crds | unos)

		basic_machine=m68k-crds

		;;

	da30 | da30-*)

		basic_machine=m68k-da30

		;;

	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)

		basic_machine=mips-dec

		;;

	delta | 3300 | motorola-3300 | motorola-delta \

	      | 3300-motorola | delta-motorola)

		basic_machine=m68k-motorola

		;;

	delta88)

		basic_machine=m88k-motorola

		os=-sysv3

		;;

	dpx20 | dpx20-*)

		basic_machine=rs6000-bull

		os=-bosx

		;;

	dpx2* | dpx2*-bull)

		basic_machine=m68k-bull

		os=-sysv3

		;;

	ebmon29k)

		basic_machine=a29k-amd

		os=-ebmon

		;;

	elxsi)

		basic_machine=elxsi-elxsi

		os=-bsd

		;;

	encore | umax | mmax)

		basic_machine=ns32k-encore

		;;

	es1800 | OSE68k | ose68k | ose | OSE)

		basic_machine=m68k-ericsson

		os=-ose

		;;

	fx2800)

		basic_machine=i860-alliant

		;;

	genix)

		basic_machine=ns32k-ns

		;;

	gmicro)

		basic_machine=tron-gmicro

		os=-sysv

		;;

	h3050r* | hiux*)

		basic_machine=hppa1.1-hitachi

		os=-hiuxwe2

		;;

	h8300hms)

		basic_machine=h8300-hitachi

		os=-hms

		;;

	h8300xray)

		basic_machine=h8300-hitachi

		os=-xray

		;;

	h8500hms)

		basic_machine=h8500-hitachi

		os=-hms

		;;

	harris)

		basic_machine=m88k-harris

		os=-sysv3

		;;

	hp300-*)

		basic_machine=m68k-hp

		;;

	hp300bsd)

		basic_machine=m68k-hp

		os=-bsd

		;;

	hp300hpux)

		basic_machine=m68k-hp

		os=-hpux

		;;

	hp3k9[0-9][0-9] | hp9[0-9][0-9])

		basic_machine=hppa1.0-hp

		;;

	hp9k2[0-9][0-9] | hp9k31[0-9])

		basic_machine=m68000-hp

		;;

	hp9k3[2-9][0-9])

		basic_machine=m68k-hp

		;;

	hp9k6[0-9][0-9] | hp6[0-9][0-9])

		basic_machine=hppa1.0-hp

		;;

	hp9k7[0-79][0-9] | hp7[0-79][0-9])

		basic_machine=hppa1.1-hp

		;;

	hp9k78[0-9] | hp78[0-9])

		# FIXME: really hppa2.0-hp

		basic_machine=hppa1.1-hp

		;;

	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)

		# FIXME: really hppa2.0-hp

		basic_machine=hppa1.1-hp

		;;

	hp9k8[0-9][13679] | hp8[0-9][13679])

		basic_machine=hppa1.1-hp

		;;

	hp9k8[0-9][0-9] | hp8[0-9][0-9])

		basic_machine=hppa1.0-hp

		;;

	hppa-next)

		os=-nextstep3

		;;

	hppaosf)

		basic_machine=hppa1.1-hp

		os=-osf

		;;

	hppro)

		basic_machine=hppa1.1-hp

		os=-proelf

		;;

	i370-ibm* | ibm*)

		basic_machine=i370-ibm

		;;

# I'm not sure what "Sysv32" means.  Should this be sysv3.2?

	i[34567]86v32)

		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`

		os=-sysv32

		;;

	i[34567]86v4*)

		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`

		os=-sysv4

		;;

	i[34567]86v)