config.sub

#! /bin/sh
# Configuration validation subroutine script.
#   Copyright 1992-2018 Free Software Foundation, Inc.

timestamp='2018-07-03'

# 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 3 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, see <https://www.gnu.org/licenses/>.
#
# 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.  This Exception is an additional permission under section 7
# of the GNU General Public License, version 3 ("GPLv3").


# Please send patches to <config-patches@gnu.org>.
#
# 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.

# You can get the latest version of this script from:
# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub

# 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.

me=`echo "$0" | sed -e 's,.*/,,'`

usage="\
Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS

Canonicalize a configuration name.

Options:
  -h, --help         print this help, then exit
  -t, --time-stamp   print date of last modification, then exit
  -v, --version      print version number, then exit

Report bugs and patches to <config-patches@gnu.org>."

version="\
GNU config.sub ($timestamp)

Copyright 1992-2018 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."

help="
Try \`$me --help' for more information."

# Parse command line
while test $# -gt 0 ; do
  case $1 in
    --time-stamp | --time* | -t )
       echo "$timestamp" ; exit ;;
    --version | -v )
       echo "$version" ; exit ;;
    --help | --h* | -h )
       echo "$usage"; exit ;;
    -- )     # Stop option processing
       shift; break ;;
    - )	# Use stdin as input.
       break ;;
    -* )
       echo "$me: invalid option $1$help"
       exit 1 ;;

    *local*)
       # First pass through any local machine types.
       echo "$1"
       exit ;;

    * )
       break ;;
  esac
done

case $# in
 0) echo "$me: missing argument$help" >&2
    exit 1;;
 1) ;;
 *) echo "$me: too many arguments$help" >&2
    exit 1;;
esac

# Split fields of configuration type
IFS="-" read -r field1 field2 field3 field4 <<EOF
$1
EOF

# Separate into logical components for further validation
case $1 in
	*-*-*-*-*)
		echo Invalid configuration \`"$1"\': more than four components >&2
		exit 1
		;;
	*-*-*-*)
		basic_machine=$field1-$field2
		os=$field3-$field4
		;;
	*-*-*)
		# Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
		# parts
		maybe_os=$field2-$field3
		case $maybe_os in
			nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc \
			| linux-newlib* | linux-musl* | linux-uclibc* | uclinux-uclibc* \
			| uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
			| netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
			| storm-chaos* | os2-emx* | rtmk-nova*)
				basic_machine=$field1
				os=$maybe_os
				;;
			android-linux)
				basic_machine=$field1-unknown
				os=linux-android
				;;
			*)
				basic_machine=$field1-$field2
				os=$field3
				;;
		esac
		;;
	*-*)
		# Second component is usually, but not always the OS
		case $field2 in
			# Prevent following clause from handling this valid os
			sun*os*)
				basic_machine=$field1
				os=$field2
				;;
			# Manufacturers
			dec* | mips* | sequent* | encore* | pc532* | sgi* | sony* \
			| att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
			| unicom* | ibm* | next | hp | isi* | apollo | altos* \
			| convergent* | ncr* | news | 32* | 3600* | 3100* | hitachi* \
			| c[123]* | convex* | sun | crds | omron* | dg | ultra | tti* \
			| harris | dolphin | highlevel | gould | cbm | ns | masscomp \
			| apple | axis | knuth | cray | microblaze* \
			| sim | cisco | oki | wec | wrs | winbond)
				basic_machine=$field1-$field2
				os=
				;;
			*)
				basic_machine=$field1
				os=$field2
				;;
		esac
		;;
	*)
		# Convert single-component short-hands not valid as part of
		# multi-component configurations.
		case $field1 in
			386bsd)
				basic_machine=i386-pc
				os=bsd
				;;
			a29khif)
				basic_machine=a29k-amd
				os=udi
				;;
			adobe68k)
				basic_machine=m68010-adobe
				os=scout
				;;
			am29k)
				basic_machine=a29k-none
				os=bsd
				;;
			amdahl)
				basic_machine=580-amdahl
				os=sysv
				;;
			amigaos | amigados)
				basic_machine=m68k-unknown
				os=amigaos
				;;
			amigaunix | amix)
				basic_machine=m68k-unknown
				os=sysv4
				;;
			apollo68)
				basic_machine=m68k-apollo
				os=sysv
				;;
			apollo68bsd)
				basic_machine=m68k-apollo
				os=bsd
				;;
			aros)
				basic_machine=i386-pc
				os=aros
				;;
			aux)
				basic_machine=m68k-apple
				os=aux
				;;
			balance)
				basic_machine=ns32k-sequent
				os=dynix
				;;
			blackfin)
				basic_machine=bfin-unknown
				os=linux
				;;
			cegcc)
				basic_machine=arm-unknown
				os=cegcc
				;;
			cray)
				basic_machine=j90-cray
				os=unicos
				;;
			craynv)
				basic_machine=craynv-cray
				os=unicosmp
				;;
			delta88)
				basic_machine=m88k-motorola
				os=sysv3
				;;
			dicos)
				basic_machine=i686-pc
				os=dicos
				;;
			djgpp)
				basic_machine=i586-pc
				os=msdosdjgpp
				;;
			ebmon29k)
				basic_machine=a29k-amd
				os=ebmon
				;;
			es1800 | OSE68k | ose68k | ose | OSE)
				basic_machine=m68k-ericsson
				os=ose
				;;
			gmicro)
				basic_machine=tron-gmicro
				os=sysv
				;;
			go32)
				basic_machine=i386-pc
				os=go32
				;;
			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
				;;
			hp300bsd)
				basic_machine=m68k-hp
				os=bsd
				;;
			hp300hpux)
				basic_machine=m68k-hp
				os=hpux
				;;
			hppaosf)
				basic_machine=hppa1.1-hp
				os=osf
				;;
			hppro)
				basic_machine=hppa1.1-hp
				os=proelf
				;;
			i386mach)
				basic_machine=i386-mach
				os=mach
				;;
			vsta)
				basic_machine=i386-unknown
				os=vsta
				;;
			isi68 | isi)
				basic_machine=m68k-isi
				os=sysv
				;;
			m68knommu)
				basic_machine=m68k-unknown
				os=linux
				;;
			magnum | m3230)
				basic_machine=mips-mips
				os=sysv
				;;
			merlin)
				basic_machine=ns32k-utek
				os=sysv
				;;
			mingw64)
				basic_machine=x86_64-pc
				os=mingw64
				;;
			mingw32)
				basic_machine=i686-pc
				os=mingw32
				;;
			mingw32ce)
				basic_machine=arm-unknown
				os=mingw32ce
				;;
			monitor)
				basic_machine=m68k-rom68k
				os=coff
				;;
			morphos)
				basic_machine=powerpc-unknown
				os=morphos
				;;
			moxiebox)
				basic_machine=moxie-unknown
				os=moxiebox
				;;
			msdos)
				basic_machine=i386-pc
				os=msdos
				;;
			msys)
				basic_machine=i686-pc
				os=msys
				;;
			mvs)
				basic_machine=i370-ibm
				os=mvs
				;;
			nacl)
				basic_machine=le32-unknown
				os=nacl
				;;
			ncr3000)
				basic_machine=i486-ncr
				os=sysv4
				;;
			netbsd386)
				basic_machine=i386-unknown
				os=netbsd
				;;
			netwinder)
				basic_machine=armv4l-rebel
				os=linux
				;;
			news | news700 | news800 | news900)
				basic_machine=m68k-sony
				os=newsos
				;;
			news1000)
				basic_machine=m68030-sony
				os=newsos
				;;
			necv70)
				basic_machine=v70-nec
				os=sysv
				;;
			nh3000)
				basic_machine=m68k-harris
				os=cxux
				;;
			nh[45]000)
				basic_machine=m88k-harris
				os=cxux
				;;
			nindy960)
				basic_machine=i960-intel
				os=nindy
				;;
			mon960)
				basic_machine=i960-intel
				os=mon960
				;;
			nonstopux)
				basic_machine=mips-compaq
				os=nonstopux
				;;
			os400)
				basic_machine=powerpc-ibm
				os=os400
				;;
			OSE68000 | ose68000)
				basic_machine=m68000-ericsson
				os=ose
				;;
			os68k)
				basic_machine=m68k-none
				os=os68k
				;;
			paragon)
				basic_machine=i860-intel
				os=osf
				;;
			parisc)
				basic_machine=hppa-unknown
				os=linux
				;;
			pw32)
				basic_machine=i586-unknown
				os=pw32
				;;
			rdos | rdos64)
				basic_machine=x86_64-pc
				os=rdos
				;;
			rdos32)
				basic_machine=i386-pc
				os=rdos
				;;
			rom68k)
				basic_machine=m68k-rom68k
				os=coff
				;;
			sa29200)
				basic_machine=a29k-amd
				os=udi
				;;
			sei)
				basic_machine=mips-sei
				os=seiux
				;;
			sps7)
				basic_machine=m68k-bull
				os=sysv2
				;;
			stratus)
				basic_machine=i860-stratus
				os=sysv4
				;;
			sun2os3)
				basic_machine=m68000-sun
				os=sunos3
				;;
			sun2os4)
				basic_machine=m68000-sun
				os=sunos4
				;;
			sun3os3)
				basic_machine=m68k-sun
				os=sunos3
				;;
			sun3os4)
				basic_machine=m68k-sun
				os=sunos4
				;;
			sun4os3)
				basic_machine=sparc-sun
				os=sunos3
				;;
			sun4os4)
				basic_machine=sparc-sun
				os=sunos4
				;;
			sun4sol2)
				basic_machine=sparc-sun
				os=solaris2
				;;
			sv1)
				basic_machine=sv1-cray
				os=unicos
				;;
			symmetry)
				basic_machine=i386-sequent
				os=dynix
				;;
			t3e)
				basic_machine=alphaev5-cray
				os=unicos
				;;
			t90)
				basic_machine=t90-cray
				os=unicos
				;;
			toad1)
				basic_machine=pdp10-xkl
				os=tops20
				;;
			tpf)
				basic_machine=s390x-ibm
				os=tpf
				;;
			udi29k)
				basic_machine=a29k-amd
				os=udi
				;;
			ultra3)
				basic_machine=a29k-nyu
				os=sym1
				;;
			v810 | necv810)
				basic_machine=v810-nec
				os=none
				;;
			vaxv)
				basic_machine=vax-dec
				os=sysv
				;;
			vms)
				basic_machine=vax-dec
				os=vms
				;;
			vxworks960)
				basic_machine=i960-wrs
				os=vxworks
				;;
			vxworks68)
				basic_machine=m68k-wrs
				os=vxworks
				;;
			vxworks29k)
				basic_machine=a29k-wrs
				os=vxworks
				;;
			xbox)
				basic_machine=i686-pc
				os=mingw32
				;;
			ymp)
				basic_machine=ymp-cray
				os=unicos
				;;
			*)
				basic_machine=$1
				os=
				;;
		esac
		;;
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.
	1750a | 580 \
	| a29k \
	| aarch64 | aarch64_be \
	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
	| am33_2.0 \
	| arc | arceb \
	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv6m | armv[78][arm] \
	| avr | avr32 \
	| ba \
	| be32 | be64 \
	| bfin \
	| c4x | c8051 | clipper | csky \
	| d10v | d30v | dlx | dsp16xx \
	| e2k | epiphany \
	| fido | fr30 | frv | ft32 \
	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
	| hexagon \
	| i370 | i860 | i960 | ia16 | ia64 \
	| ip2k | iq2000 \
	| k1om \
	| le32 | le64 \
	| lm32 \
	| m32c | m32r | m32rle | m68000 | m68k | m88k \
	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
	| mips | mipsbe | mipseb | mipsel | mipsle \
	| mips16 \
	| mips64 | mips64el \
	| mips64octeon | mips64octeonel \
	| mips64orion | mips64orionel \
	| mips64r5900 | mips64r5900el \
	| mips64vr | mips64vrel \
	| mips64vr4100 | mips64vr4100el \
	| mips64vr4300 | mips64vr4300el \
	| mips64vr5000 | mips64vr5000el \
	| mips64vr5900 | mips64vr5900el \
	| mipsisa32 | mipsisa32el \
	| mipsisa32r2 | mipsisa32r2el \
	| mipsisa32r6 | mipsisa32r6el \
	| mipsisa64 | mipsisa64el \
	| mipsisa64r2 | mipsisa64r2el \
	| mipsisa64r6 | mipsisa64r6el \
	| mipsisa64sb1 | mipsisa64sb1el \
	| mipsisa64sr71k | mipsisa64sr71kel \
	| mipsr5900 | mipsr5900el \
	| mipstx39 | mipstx39el \
	| mn10200 | mn10300 \
	| moxie \
	| mt \
	| msp430 \
	| nds32 | nds32le | nds32be \
	| nfp \
	| nios | nios2 | nios2eb | nios2el \
	| ns16k | ns32k \
	| open8 | or1k | or1knd | or32 \
	| pdp10 | pj | pjl \
	| powerpc | powerpc64 | powerpc64le | powerpcle \
	| pru \
	| pyramid \
	| riscv | riscv32 | riscv64 \
	| rl78 | rx \
	| score \
	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
	| sh64 | sh64le \
	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
	| spu \
	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
	| ubicom32 \
	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
	| visium \
	| wasm32 \
	| x86 | xc16x | xstormy16 | xtensa \
	| z8k | z80)
		basic_machine=$basic_machine-unknown
		;;
	c54x)
		basic_machine=tic54x-unknown
		;;
	c55x)
		basic_machine=tic55x-unknown
		;;
	c6x)
		basic_machine=tic6x-unknown
		;;
	leon|leon[3-9])
		basic_machine=sparc-$basic_machine
		;;
	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
		basic_machine=$basic_machine-unknown
		os=${os:-none}
		;;
	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65)
		;;
	m9s12z | m68hcs12z | hcs12z | s12z)
		basic_machine=s12z-unknown
		os=${os:-none}
		;;
	ms1)
		basic_machine=mt-unknown
		;;
	strongarm | thumb | xscale)
		basic_machine=arm-unknown
		;;
	xgate)
		basic_machine=$basic_machine-unknown
		os=${os:-none}
		;;
	xscaleeb)
		basic_machine=armeb-unknown
		;;

	xscaleel)
		basic_machine=armel-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.
	i*86 | x86_64)
	  basic_machine=$basic_machine-pc
	  ;;
	# Recognize the basic CPU types with company name.
	580-* \
	| a29k-* \
	| aarch64-* | aarch64_be-* \
	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
	| avr-* | avr32-* \
	| ba-* \
	| be32-* | be64-* \
	| bfin-* | bs2000-* \
	| c[123]* | c30-* | [cjt]90-* | c4x-* \
	| c8051-* | clipper-* | craynv-* | csky-* | cydra-* \
	| d10v-* | d30v-* | dlx-* \
	| e2k-* | elxsi-* \
	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
	| h8300-* | h8500-* \
	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
	| hexagon-* \
	| i*86-* | i860-* | i960-* | ia16-* | ia64-* \
	| ip2k-* | iq2000-* \
	| k1om-* \
	| le32-* | le64-* \
	| lm32-* \
	| m32c-* | m32r-* | m32rle-* \
	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
	| microblaze-* | microblazeel-* \
	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
	| mips16-* \
	| mips64-* | mips64el-* \
	| mips64octeon-* | mips64octeonel-* \
	| mips64orion-* | mips64orionel-* \
	| mips64r5900-* | mips64r5900el-* \
	| mips64vr-* | mips64vrel-* \
	| mips64vr4100-* | mips64vr4100el-* \
	| mips64vr4300-* | mips64vr4300el-* \
	| mips64vr5000-* | mips64vr5000el-* \
	| mips64vr5900-* | mips64vr5900el-* \
	| mipsisa32-* | mipsisa32el-* \
	| mipsisa32r2-* | mipsisa32r2el-* \
	| mipsisa32r6-* | mipsisa32r6el-* \
	| mipsisa64-* | mipsisa64el-* \
	| mipsisa64r2-* | mipsisa64r2el-* \
	| mipsisa64r6-* | mipsisa64r6el-* \
	| mipsisa64sb1-* | mipsisa64sb1el-* \
	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
	| mipsr5900-* | mipsr5900el-* \
	| mipstx39-* | mipstx39el-* \
	| mmix-* \
	| mt-* \
	| msp430-* \
	| nds32-* | nds32le-* | nds32be-* \
	| nfp-* \
	| nios-* | nios2-* | nios2eb-* | nios2el-* \
	| none-* | np1-* | ns16k-* | ns32k-* \
	| open8-* \
	| or1k*-* \
	| orion-* \
	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
	| pru-* \
	| pyramid-* \
	| riscv-* | riscv32-* | riscv64-* \
	| rl78-* | romp-* | rs6000-* | rx-* \
	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
	| sparclite-* \
	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
	| tahoe-* \
	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
	| tile*-* \
	| tron-* \
	| ubicom32-* \
	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
	| vax-* \
	| visium-* \
	| wasm32-* \
	| we32k-* \
	| x86-* | x86_64-* | xc16x-* | xps100-* \
	| xstormy16-* | xtensa*-* \
	| ymp-* \
	| z8k-* | z80-*)
		;;
	# Recognize the basic CPU types without company name, with glob match.
	xtensa*)
		basic_machine=$basic_machine-unknown
		;;
	# Recognize the various machine names and aliases which stand
	# for a CPU type and a company and sometimes even an OS.
	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
		basic_machine=m68000-att
		;;
	3b*)
		basic_machine=we32k-att
		;;
	abacus)
		basic_machine=abacus-unknown
		;;
	alliant | fx80)
		basic_machine=fx80-alliant
		;;
	altos | altos3068)
		basic_machine=m68k-altos
		;;
	amd64)
		basic_machine=x86_64-pc
		;;
	amd64-*)
		basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
		;;
	amiga | amiga-*)
		basic_machine=m68k-unknown
		;;
	asmjs)
		basic_machine=asmjs-unknown
		;;
	blackfin-*)
		basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'`
		os=linux
		;;
	bluegene*)
		basic_machine=powerpc-ibm
		os=cnk
		;;
	c54x-*)
		basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
		;;
	c55x-*)
		basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
		;;
	c6x-*)
		basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
		;;
	c90)
		basic_machine=c90-cray
		os=${os:-unicos}
		;;
	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
		;;
	cr16 | cr16-*)
		basic_machine=cr16-unknown
		os=${os:-elf}
		;;
	crds | unos)
		basic_machine=m68k-crds
		;;
	crisv32 | crisv32-* | etraxfs*)
		basic_machine=crisv32-axis
		;;
	cris | cris-* | etrax*)
		basic_machine=cris-axis
		;;
	crx)
		basic_machine=crx-unknown
		os=${os:-elf}
		;;
	da30 | da30-*)
		basic_machine=m68k-da30
		;;
	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
		basic_machine=mips-dec
		;;
	decsystem10* | dec10*)
		basic_machine=pdp10-dec
		os=tops10
		;;
	decsystem20* | dec20*)
		basic_machine=pdp10-dec
		os=tops20
		;;
	delta | 3300 | motorola-3300 | motorola-delta \
	      | 3300-motorola | delta-motorola)
		basic_machine=m68k-motorola
		;;
	dpx20 | dpx20-*)
		basic_machine=rs6000-bull
		os=${os:-bosx}
		;;
	dpx2*)
		basic_machine=m68k-bull
		os=sysv3
		;;
	e500v[12])
		basic_machine=powerpc-unknown
		os=$os"spe"
		;;
	e500v[12]-*)
		basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
		os=$os"spe"
		;;
	encore | umax | mmax)
		basic_machine=ns32k-encore
		;;
	elxsi)
		basic_machine=elxsi-elxsi
		os=${os:-bsd}
		;;
	fx2800)
		basic_machine=i860-alliant
		;;
	genix)
		basic_machine=ns32k-ns
		;;
	h3050r* | hiux*)
		basic_machine=hppa1.1-hitachi
		os=hiuxwe2
		;;
	hp300-*)
		basic_machine=m68k-hp
		;;
	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
		;;
	i370-ibm* | ibm*)
		basic_machine=i370-ibm
		;;
	i*86v32)
		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
		os=sysv32
		;;
	i*86v4*)
		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
		os=sysv4
		;;
	i*86v)
		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
		os=sysv
		;;
	i*86sol2)
		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
		os=solaris2
		;;
	j90 | j90-cray)
		basic_machine=j90-cray
		os=${os:-unicos}
		;;
	iris | iris4d)
		basic_machine=mips-sgi
		case $os in
		    irix*)
			;;
		    *)
			os=irix4
			;;
		esac
		;;
	leon-*|leon[3-9]-*)
		basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'`
		;;
	m68knommu-*)
		basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'`
		os=linux
		;;
	microblaze*)
		basic_machine=microblaze-xilinx
		;;
	miniframe)
		basic_machine=m68000-convergent
		;;
	*mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
		basic_machine=m68k-atari
		os=mint
		;;