1#! /bin/sh
   2# Configuration validation subroutine script.
   3#   Copyright 1992-2021 Free Software Foundation, Inc.
   4
   5# shellcheck disable=SC2006,SC2268 # see below for rationale
   6
   7timestamp='2021-07-03'
   8
   9# This file is free software; you can redistribute it and/or modify it
  10# under the terms of the GNU General Public License as published by
  11# the Free Software Foundation; either version 3 of the License, or
  12# (at your option) any later version.
  13#
  14# This program is distributed in the hope that it will be useful, but
  15# WITHOUT ANY WARRANTY; without even the implied warranty of
  16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17# General Public License for more details.
  18#
  19# You should have received a copy of the GNU General Public License
  20# along with this program; if not, see <https://www.gnu.org/licenses/>.
  21#
  22# As a special exception to the GNU General Public License, if you
  23# distribute this file as part of a program that contains a
  24# configuration script generated by Autoconf, you may include it under
  25# the same distribution terms that you use for the rest of that
  26# program.  This Exception is an additional permission under section 7
  27# of the GNU General Public License, version 3 ("GPLv3").
  28
  29
  30# Please send patches to <config-patches@gnu.org>.
  31#
  32# Configuration subroutine to validate and canonicalize a configuration type.
  33# Supply the specified configuration type as an argument.
  34# If it is invalid, we print an error message on stderr and exit with code 1.
  35# Otherwise, we print the canonical config type on stdout and succeed.
  36
  37# You can get the latest version of this script from:
  38# https://git.savannah.gnu.org/cgit/config.git/plain/config.sub
  39
  40# This file is supposed to be the same for all GNU packages
  41# and recognize all the CPU types, system types and aliases
  42# that are meaningful with *any* GNU software.
  43# Each package is responsible for reporting which valid configurations
  44# it does not support.  The user should be able to distinguish
  45# a failure to support a valid configuration from a meaningless
  46# configuration.
  47
  48# The goal of this file is to map all the various variations of a given
  49# machine specification into a single specification in the form:
  50#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
  51# or in some cases, the newer four-part form:
  52#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
  53# It is wrong to echo any other type of specification.
  54
  55# The "shellcheck disable" line above the timestamp inhibits complaints
  56# about features and limitations of the classic Bourne shell that were
  57# superseded or lifted in POSIX.  However, this script identifies a wide
  58# variety of pre-POSIX systems that do not have POSIX shells at all, and
  59# even some reasonably current systems (Solaris 10 as case-in-point) still
  60# have a pre-POSIX /bin/sh.
  61
  62me=`echo "$0" | sed -e 's,.*/,,'`
  63
  64usage="\
  65Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
  66
  67Canonicalize a configuration name.
  68
  69Options:
  70  -h, --help         print this help, then exit
  71  -t, --time-stamp   print date of last modification, then exit
  72  -v, --version      print version number, then exit
  73
  74Report bugs and patches to <config-patches@gnu.org>."
  75
  76version="\
  77GNU config.sub ($timestamp)
  78
  79Copyright 1992-2021 Free Software Foundation, Inc.
  80
  81This is free software; see the source for copying conditions.  There is NO
  82warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
  83
  84help="
  85Try \`$me --help' for more information."
  86
  87# Parse command line
  88while test $# -gt 0 ; do
  89  case $1 in
  90    --time-stamp | --time* | -t )
  91       echo "$timestamp" ; exit ;;
  92    --version | -v )
  93       echo "$version" ; exit ;;
  94    --help | --h* | -h )
  95       echo "$usage"; exit ;;
  96    -- )     # Stop option processing
  97       shift; break ;;
  98    - )	# Use stdin as input.
  99       break ;;
 100    -* )
 101       echo "$me: invalid option $1$help" >&2
 102       exit 1 ;;
 103
 104    *local*)
 105       # First pass through any local machine types.
 106       echo "$1"
 107       exit ;;
 108
 109    * )
 110       break ;;
 111  esac
 112done
 113
 114case $# in
 115 0) echo "$me: missing argument$help" >&2
 116    exit 1;;
 117 1) ;;
 118 *) echo "$me: too many arguments$help" >&2
 119    exit 1;;
 120esac
 121
 122# Split fields of configuration type
 123# shellcheck disable=SC2162
 124IFS="-" read field1 field2 field3 field4 <<EOF
 125$1
 126EOF
 127
 128# Separate into logical components for further validation
 129case $1 in
 130	*-*-*-*-*)
 131		echo Invalid configuration \`"$1"\': more than four components >&2
 132		exit 1
 133		;;
 134	*-*-*-*)
 135		basic_machine=$field1-$field2
 136		basic_os=$field3-$field4
 137		;;
 138	*-*-*)
 139		# Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
 140		# parts
 141		maybe_os=$field2-$field3
 142		case $maybe_os in
 143			nto-qnx* | linux-* | uclinux-uclibc* \
 144			| uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
 145			| netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
 146			| storm-chaos* | os2-emx* | rtmk-nova*)
 147				basic_machine=$field1
 148				basic_os=$maybe_os
 149				;;
 150			android-linux)
 151				basic_machine=$field1-unknown
 152				basic_os=linux-android
 153				;;
 154			*)
 155				basic_machine=$field1-$field2
 156				basic_os=$field3
 157				;;
 158		esac
 159		;;
 160	*-*)
 161		# A lone config we happen to match not fitting any pattern
 162		case $field1-$field2 in
 163			decstation-3100)
 164				basic_machine=mips-dec
 165				basic_os=
 166				;;
 167			*-*)
 168				# Second component is usually, but not always the OS
 169				case $field2 in
 170					# Prevent following clause from handling this valid os
 171					sun*os*)
 172						basic_machine=$field1
 173						basic_os=$field2
 174						;;
 175					# Manufacturers
 176					dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
 177					| att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
 178					| unicom* | ibm* | next | hp | isi* | apollo | altos* \
 179					| convergent* | ncr* | news | 32* | 3600* | 3100* \
 180					| hitachi* | c[123]* | convex* | sun | crds | omron* | dg \
 181					| ultra | tti* | harris | dolphin | highlevel | gould \
 182					| cbm | ns | masscomp | apple | axis | knuth | cray \
 183					| microblaze* | sim | cisco \
 184					| oki | wec | wrs | winbond)
 185						basic_machine=$field1-$field2
 186						basic_os=
 187						;;
 188					*)
 189						basic_machine=$field1
 190						basic_os=$field2
 191						;;
 192				esac
 193			;;
 194		esac
 195		;;
 196	*)
 197		# Convert single-component short-hands not valid as part of
 198		# multi-component configurations.
 199		case $field1 in
 200			386bsd)
 201				basic_machine=i386-pc
 202				basic_os=bsd
 203				;;
 204			a29khif)
 205				basic_machine=a29k-amd
 206				basic_os=udi
 207				;;
 208			adobe68k)
 209				basic_machine=m68010-adobe
 210				basic_os=scout
 211				;;
 212			alliant)
 213				basic_machine=fx80-alliant
 214				basic_os=
 215				;;
 216			altos | altos3068)
 217				basic_machine=m68k-altos
 218				basic_os=
 219				;;
 220			am29k)
 221				basic_machine=a29k-none
 222				basic_os=bsd
 223				;;
 224			amdahl)
 225				basic_machine=580-amdahl
 226				basic_os=sysv
 227				;;
 228			amiga)
 229				basic_machine=m68k-unknown
 230				basic_os=
 231				;;
 232			amigaos | amigados)
 233				basic_machine=m68k-unknown
 234				basic_os=amigaos
 235				;;
 236			amigaunix | amix)
 237				basic_machine=m68k-unknown
 238				basic_os=sysv4
 239				;;
 240			apollo68)
 241				basic_machine=m68k-apollo
 242				basic_os=sysv
 243				;;
 244			apollo68bsd)
 245				basic_machine=m68k-apollo
 246				basic_os=bsd
 247				;;
 248			aros)
 249				basic_machine=i386-pc
 250				basic_os=aros
 251				;;
 252			aux)
 253				basic_machine=m68k-apple
 254				basic_os=aux
 255				;;
 256			balance)
 257				basic_machine=ns32k-sequent
 258				basic_os=dynix
 259				;;
 260			blackfin)
 261				basic_machine=bfin-unknown
 262				basic_os=linux
 263				;;
 264			cegcc)
 265				basic_machine=arm-unknown
 266				basic_os=cegcc
 267				;;
 268			convex-c1)
 269				basic_machine=c1-convex
 270				basic_os=bsd
 271				;;
 272			convex-c2)
 273				basic_machine=c2-convex
 274				basic_os=bsd
 275				;;
 276			convex-c32)
 277				basic_machine=c32-convex
 278				basic_os=bsd
 279				;;
 280			convex-c34)
 281				basic_machine=c34-convex
 282				basic_os=bsd
 283				;;
 284			convex-c38)
 285				basic_machine=c38-convex
 286				basic_os=bsd
 287				;;
 288			cray)
 289				basic_machine=j90-cray
 290				basic_os=unicos
 291				;;
 292			crds | unos)
 293				basic_machine=m68k-crds
 294				basic_os=
 295				;;
 296			da30)
 297				basic_machine=m68k-da30
 298				basic_os=
 299				;;
 300			decstation | pmax | pmin | dec3100 | decstatn)
 301				basic_machine=mips-dec
 302				basic_os=
 303				;;
 304			delta88)
 305				basic_machine=m88k-motorola
 306				basic_os=sysv3
 307				;;
 308			dicos)
 309				basic_machine=i686-pc
 310				basic_os=dicos
 311				;;
 312			djgpp)
 313				basic_machine=i586-pc
 314				basic_os=msdosdjgpp
 315				;;
 316			ebmon29k)
 317				basic_machine=a29k-amd
 318				basic_os=ebmon
 319				;;
 320			es1800 | OSE68k | ose68k | ose | OSE)
 321				basic_machine=m68k-ericsson
 322				basic_os=ose
 323				;;
 324			gmicro)
 325				basic_machine=tron-gmicro
 326				basic_os=sysv
 327				;;
 328			go32)
 329				basic_machine=i386-pc
 330				basic_os=go32
 331				;;
 332			h8300hms)
 333				basic_machine=h8300-hitachi
 334				basic_os=hms
 335				;;
 336			h8300xray)
 337				basic_machine=h8300-hitachi
 338				basic_os=xray
 339				;;
 340			h8500hms)
 341				basic_machine=h8500-hitachi
 342				basic_os=hms
 343				;;
 344			harris)
 345				basic_machine=m88k-harris
 346				basic_os=sysv3
 347				;;
 348			hp300 | hp300hpux)
 349				basic_machine=m68k-hp
 350				basic_os=hpux
 351				;;
 352			hp300bsd)
 353				basic_machine=m68k-hp
 354				basic_os=bsd
 355				;;
 356			hppaosf)
 357				basic_machine=hppa1.1-hp
 358				basic_os=osf
 359				;;
 360			hppro)
 361				basic_machine=hppa1.1-hp
 362				basic_os=proelf
 363				;;
 364			i386mach)
 365				basic_machine=i386-mach
 366				basic_os=mach
 367				;;
 368			isi68 | isi)
 369				basic_machine=m68k-isi
 370				basic_os=sysv
 371				;;
 372			m68knommu)
 373				basic_machine=m68k-unknown
 374				basic_os=linux
 375				;;
 376			magnum | m3230)
 377				basic_machine=mips-mips
 378				basic_os=sysv
 379				;;
 380			merlin)
 381				basic_machine=ns32k-utek
 382				basic_os=sysv
 383				;;
 384			mingw64)
 385				basic_machine=x86_64-pc
 386				basic_os=mingw64
 387				;;
 388			mingw32)
 389				basic_machine=i686-pc
 390				basic_os=mingw32
 391				;;
 392			mingw32ce)
 393				basic_machine=arm-unknown
 394				basic_os=mingw32ce
 395				;;
 396			monitor)
 397				basic_machine=m68k-rom68k
 398				basic_os=coff
 399				;;
 400			morphos)
 401				basic_machine=powerpc-unknown
 402				basic_os=morphos
 403				;;
 404			moxiebox)
 405				basic_machine=moxie-unknown
 406				basic_os=moxiebox
 407				;;
 408			msdos)
 409				basic_machine=i386-pc
 410				basic_os=msdos
 411				;;
 412			msys)
 413				basic_machine=i686-pc
 414				basic_os=msys
 415				;;
 416			mvs)
 417				basic_machine=i370-ibm
 418				basic_os=mvs
 419				;;
 420			nacl)
 421				basic_machine=le32-unknown
 422				basic_os=nacl
 423				;;
 424			ncr3000)
 425				basic_machine=i486-ncr
 426				basic_os=sysv4
 427				;;
 428			netbsd386)
 429				basic_machine=i386-pc
 430				basic_os=netbsd
 431				;;
 432			netwinder)
 433				basic_machine=armv4l-rebel
 434				basic_os=linux
 435				;;
 436			news | news700 | news800 | news900)
 437				basic_machine=m68k-sony
 438				basic_os=newsos
 439				;;
 440			news1000)
 441				basic_machine=m68030-sony
 442				basic_os=newsos
 443				;;
 444			necv70)
 445				basic_machine=v70-nec
 446				basic_os=sysv
 447				;;
 448			nh3000)
 449				basic_machine=m68k-harris
 450				basic_os=cxux
 451				;;
 452			nh[45]000)
 453				basic_machine=m88k-harris
 454				basic_os=cxux
 455				;;
 456			nindy960)
 457				basic_machine=i960-intel
 458				basic_os=nindy
 459				;;
 460			mon960)
 461				basic_machine=i960-intel
 462				basic_os=mon960
 463				;;
 464			nonstopux)
 465				basic_machine=mips-compaq
 466				basic_os=nonstopux
 467				;;
 468			os400)
 469				basic_machine=powerpc-ibm
 470				basic_os=os400
 471				;;
 472			OSE68000 | ose68000)
 473				basic_machine=m68000-ericsson
 474				basic_os=ose
 475				;;
 476			os68k)
 477				basic_machine=m68k-none
 478				basic_os=os68k
 479				;;
 480			paragon)
 481				basic_machine=i860-intel
 482				basic_os=osf
 483				;;
 484			parisc)
 485				basic_machine=hppa-unknown
 486				basic_os=linux
 487				;;
 488			psp)
 489				basic_machine=mipsallegrexel-sony
 490				basic_os=psp
 491				;;
 492			pw32)
 493				basic_machine=i586-unknown
 494				basic_os=pw32
 495				;;
 496			rdos | rdos64)
 497				basic_machine=x86_64-pc
 498				basic_os=rdos
 499				;;
 500			rdos32)
 501				basic_machine=i386-pc
 502				basic_os=rdos
 503				;;
 504			rom68k)
 505				basic_machine=m68k-rom68k
 506				basic_os=coff
 507				;;
 508			sa29200)
 509				basic_machine=a29k-amd
 510				basic_os=udi
 511				;;
 512			sei)
 513				basic_machine=mips-sei
 514				basic_os=seiux
 515				;;
 516			sequent)
 517				basic_machine=i386-sequent
 518				basic_os=
 519				;;
 520			sps7)
 521				basic_machine=m68k-bull
 522				basic_os=sysv2
 523				;;
 524			st2000)
 525				basic_machine=m68k-tandem
 526				basic_os=
 527				;;
 528			stratus)
 529				basic_machine=i860-stratus
 530				basic_os=sysv4
 531				;;
 532			sun2)
 533				basic_machine=m68000-sun
 534				basic_os=
 535				;;
 536			sun2os3)
 537				basic_machine=m68000-sun
 538				basic_os=sunos3
 539				;;
 540			sun2os4)
 541				basic_machine=m68000-sun
 542				basic_os=sunos4
 543				;;
 544			sun3)
 545				basic_machine=m68k-sun
 546				basic_os=
 547				;;
 548			sun3os3)
 549				basic_machine=m68k-sun
 550				basic_os=sunos3
 551				;;
 552			sun3os4)
 553				basic_machine=m68k-sun
 554				basic_os=sunos4
 555				;;
 556			sun4)
 557				basic_machine=sparc-sun
 558				basic_os=
 559				;;
 560			sun4os3)
 561				basic_machine=sparc-sun
 562				basic_os=sunos3
 563				;;
 564			sun4os4)
 565				basic_machine=sparc-sun
 566				basic_os=sunos4
 567				;;
 568			sun4sol2)
 569				basic_machine=sparc-sun
 570				basic_os=solaris2
 571				;;
 572			sun386 | sun386i | roadrunner)
 573				basic_machine=i386-sun
 574				basic_os=
 575				;;
 576			sv1)
 577				basic_machine=sv1-cray
 578				basic_os=unicos
 579				;;
 580			symmetry)
 581				basic_machine=i386-sequent
 582				basic_os=dynix
 583				;;
 584			t3e)
 585				basic_machine=alphaev5-cray
 586				basic_os=unicos
 587				;;
 588			t90)
 589				basic_machine=t90-cray
 590				basic_os=unicos
 591				;;
 592			toad1)
 593				basic_machine=pdp10-xkl
 594				basic_os=tops20
 595				;;
 596			tpf)
 597				basic_machine=s390x-ibm
 598				basic_os=tpf
 599				;;
 600			udi29k)
 601				basic_machine=a29k-amd
 602				basic_os=udi
 603				;;
 604			ultra3)
 605				basic_machine=a29k-nyu
 606				basic_os=sym1
 607				;;
 608			v810 | necv810)
 609				basic_machine=v810-nec
 610				basic_os=none
 611				;;
 612			vaxv)
 613				basic_machine=vax-dec
 614				basic_os=sysv
 615				;;
 616			vms)
 617				basic_machine=vax-dec
 618				basic_os=vms
 619				;;
 620			vsta)
 621				basic_machine=i386-pc
 622				basic_os=vsta
 623				;;
 624			vxworks960)
 625				basic_machine=i960-wrs
 626				basic_os=vxworks
 627				;;
 628			vxworks68)
 629				basic_machine=m68k-wrs
 630				basic_os=vxworks
 631				;;
 632			vxworks29k)
 633				basic_machine=a29k-wrs
 634				basic_os=vxworks
 635				;;
 636			xbox)
 637				basic_machine=i686-pc
 638				basic_os=mingw32
 639				;;
 640			ymp)
 641				basic_machine=ymp-cray
 642				basic_os=unicos
 643				;;
 644			*)
 645				basic_machine=$1
 646				basic_os=
 647				;;
 648		esac
 649		;;
 650esac
 651
 652# Decode 1-component or ad-hoc basic machines
 653case $basic_machine in
 654	# Here we handle the default manufacturer of certain CPU types.  It is in
 655	# some cases the only manufacturer, in others, it is the most popular.
 656	w89k)
 657		cpu=hppa1.1
 658		vendor=winbond
 659		;;
 660	op50n)
 661		cpu=hppa1.1
 662		vendor=oki
 663		;;
 664	op60c)
 665		cpu=hppa1.1
 666		vendor=oki
 667		;;
 668	ibm*)
 669		cpu=i370
 670		vendor=ibm
 671		;;
 672	orion105)
 673		cpu=clipper
 674		vendor=highlevel
 675		;;
 676	mac | mpw | mac-mpw)
 677		cpu=m68k
 678		vendor=apple
 679		;;
 680	pmac | pmac-mpw)
 681		cpu=powerpc
 682		vendor=apple
 683		;;
 684
 685	# Recognize the various machine names and aliases which stand
 686	# for a CPU type and a company and sometimes even an OS.
 687	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
 688		cpu=m68000
 689		vendor=att
 690		;;
 691	3b*)
 692		cpu=we32k
 693		vendor=att
 694		;;
 695	bluegene*)
 696		cpu=powerpc
 697		vendor=ibm
 698		basic_os=cnk
 699		;;
 700	decsystem10* | dec10*)
 701		cpu=pdp10
 702		vendor=dec
 703		basic_os=tops10
 704		;;
 705	decsystem20* | dec20*)
 706		cpu=pdp10
 707		vendor=dec
 708		basic_os=tops20
 709		;;
 710	delta | 3300 | motorola-3300 | motorola-delta \
 711	      | 3300-motorola | delta-motorola)
 712		cpu=m68k
 713		vendor=motorola
 714		;;
 715	dpx2*)
 716		cpu=m68k
 717		vendor=bull
 718		basic_os=sysv3
 719		;;
 720	encore | umax | mmax)
 721		cpu=ns32k
 722		vendor=encore
 723		;;
 724	elxsi)
 725		cpu=elxsi
 726		vendor=elxsi
 727		basic_os=${basic_os:-bsd}
 728		;;
 729	fx2800)
 730		cpu=i860
 731		vendor=alliant
 732		;;
 733	genix)
 734		cpu=ns32k
 735		vendor=ns
 736		;;
 737	h3050r* | hiux*)
 738		cpu=hppa1.1
 739		vendor=hitachi
 740		basic_os=hiuxwe2
 741		;;
 742	hp3k9[0-9][0-9] | hp9[0-9][0-9])
 743		cpu=hppa1.0
 744		vendor=hp
 745		;;
 746	hp9k2[0-9][0-9] | hp9k31[0-9])
 747		cpu=m68000
 748		vendor=hp
 749		;;
 750	hp9k3[2-9][0-9])
 751		cpu=m68k
 752		vendor=hp
 753		;;
 754	hp9k6[0-9][0-9] | hp6[0-9][0-9])
 755		cpu=hppa1.0
 756		vendor=hp
 757		;;
 758	hp9k7[0-79][0-9] | hp7[0-79][0-9])
 759		cpu=hppa1.1
 760		vendor=hp
 761		;;
 762	hp9k78[0-9] | hp78[0-9])
 763		# FIXME: really hppa2.0-hp
 764		cpu=hppa1.1
 765		vendor=hp
 766		;;
 767	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
 768		# FIXME: really hppa2.0-hp
 769		cpu=hppa1.1
 770		vendor=hp
 771		;;
 772	hp9k8[0-9][13679] | hp8[0-9][13679])
 773		cpu=hppa1.1
 774		vendor=hp
 775		;;
 776	hp9k8[0-9][0-9] | hp8[0-9][0-9])
 777		cpu=hppa1.0
 778		vendor=hp
 779		;;
 780	i*86v32)
 781		cpu=`echo "$1" | sed -e 's/86.*/86/'`
 782		vendor=pc
 783		basic_os=sysv32
 784		;;
 785	i*86v4*)
 786		cpu=`echo "$1" | sed -e 's/86.*/86/'`
 787		vendor=pc
 788		basic_os=sysv4
 789		;;
 790	i*86v)
 791		cpu=`echo "$1" | sed -e 's/86.*/86/'`
 792		vendor=pc
 793		basic_os=sysv
 794		;;
 795	i*86sol2)
 796		cpu=`echo "$1" | sed -e 's/86.*/86/'`
 797		vendor=pc
 798		basic_os=solaris2
 799		;;
 800	j90 | j90-cray)
 801		cpu=j90
 802		vendor=cray
 803		basic_os=${basic_os:-unicos}
 804		;;
 805	iris | iris4d)
 806		cpu=mips
 807		vendor=sgi
 808		case $basic_os in
 809		    irix*)
 810			;;
 811		    *)
 812			basic_os=irix4
 813			;;
 814		esac
 815		;;
 816	miniframe)
 817		cpu=m68000
 818		vendor=convergent
 819		;;
 820	*mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
 821		cpu=m68k
 822		vendor=atari
 823		basic_os=mint
 824		;;
 825	news-3600 | risc-news)
 826		cpu=mips
 827		vendor=sony
 828		basic_os=newsos
 829		;;
 830	next | m*-next)
 831		cpu=m68k
 832		vendor=next
 833		case $basic_os in
 834		    openstep*)
 835		        ;;
 836		    nextstep*)
 837			;;
 838		    ns2*)
 839		      basic_os=nextstep2
 840			;;
 841		    *)
 842		      basic_os=nextstep3
 843			;;
 844		esac
 845		;;
 846	np1)
 847		cpu=np1
 848		vendor=gould
 849		;;
 850	op50n-* | op60c-*)
 851		cpu=hppa1.1
 852		vendor=oki
 853		basic_os=proelf
 854		;;
 855	pa-hitachi)
 856		cpu=hppa1.1
 857		vendor=hitachi
 858		basic_os=hiuxwe2
 859		;;
 860	pbd)
 861		cpu=sparc
 862		vendor=tti
 863		;;
 864	pbb)
 865		cpu=m68k
 866		vendor=tti
 867		;;
 868	pc532)
 869		cpu=ns32k
 870		vendor=pc532
 871		;;
 872	pn)
 873		cpu=pn
 874		vendor=gould
 875		;;
 876	power)
 877		cpu=power
 878		vendor=ibm
 879		;;
 880	ps2)
 881		cpu=i386
 882		vendor=ibm
 883		;;
 884	rm[46]00)
 885		cpu=mips
 886		vendor=siemens
 887		;;
 888	rtpc | rtpc-*)
 889		cpu=romp
 890		vendor=ibm
 891		;;
 892	sde)
 893		cpu=mipsisa32
 894		vendor=sde
 895		basic_os=${basic_os:-elf}
 896		;;
 897	simso-wrs)
 898		cpu=sparclite
 899		vendor=wrs
 900		basic_os=vxworks
 901		;;
 902	tower | tower-32)
 903		cpu=m68k
 904		vendor=ncr
 905		;;
 906	vpp*|vx|vx-*)
 907		cpu=f301
 908		vendor=fujitsu
 909		;;
 910	w65)
 911		cpu=w65
 912		vendor=wdc
 913		;;
 914	w89k-*)
 915		cpu=hppa1.1
 916		vendor=winbond
 917		basic_os=proelf
 918		;;
 919	none)
 920		cpu=none
 921		vendor=none
 922		;;
 923	leon|leon[3-9])
 924		cpu=sparc
 925		vendor=$basic_machine
 926		;;
 927	leon-*|leon[3-9]-*)
 928		cpu=sparc
 929		vendor=`echo "$basic_machine" | sed 's/-.*//'`
 930		;;
 931
 932	*-*)
 933		# shellcheck disable=SC2162
 934		IFS="-" read cpu vendor <<EOF
 935$basic_machine
 936EOF
 937		;;
 938	# We use `pc' rather than `unknown'
 939	# because (1) that's what they normally are, and
 940	# (2) the word "unknown" tends to confuse beginning users.
 941	i*86 | x86_64)
 942		cpu=$basic_machine
 943		vendor=pc
 944		;;
 945	# These rules are duplicated from below for sake of the special case above;
 946	# i.e. things that normalized to x86 arches should also default to "pc"
 947	pc98)
 948		cpu=i386
 949		vendor=pc
 950		;;
 951	x64 | amd64)
 952		cpu=x86_64
 953		vendor=pc
 954		;;
 955	# Recognize the basic CPU types without company name.
 956	*)
 957		cpu=$basic_machine
 958		vendor=unknown
 959		;;
 960esac
 961
 962unset -v basic_machine
 963
 964# Decode basic machines in the full and proper CPU-Company form.
 965case $cpu-$vendor in
 966	# Here we handle the default manufacturer of certain CPU types in canonical form. It is in
 967	# some cases the only manufacturer, in others, it is the most popular.
 968	craynv-unknown)
 969		vendor=cray
 970		basic_os=${basic_os:-unicosmp}
 971		;;
 972	c90-unknown | c90-cray)
 973		vendor=cray
 974		basic_os=${Basic_os:-unicos}
 975		;;
 976	fx80-unknown)
 977		vendor=alliant
 978		;;
 979	romp-unknown)
 980		vendor=ibm
 981		;;
 982	mmix-unknown)
 983		vendor=knuth
 984		;;
 985	microblaze-unknown | microblazeel-unknown)
 986		vendor=xilinx
 987		;;
 988	rs6000-unknown)
 989		vendor=ibm
 990		;;
 991	vax-unknown)
 992		vendor=dec
 993		;;
 994	pdp11-unknown)
 995		vendor=dec
 996		;;
 997	we32k-unknown)
 998		vendor=att
 999		;;
1000	cydra-unknown)
1001		vendor=cydrome
1002		;;
1003	i370-ibm*)
1004		vendor=ibm
1005		;;
1006	orion-unknown)
1007		vendor=highlevel
1008		;;
1009	xps-unknown | xps100-unknown)
1010		cpu=xps100
1011		vendor=honeywell
1012		;;
1013
1014	# Here we normalize CPU types with a missing or matching vendor
1015	dpx20-unknown | dpx20-bull)
1016		cpu=rs6000
1017		vendor=bull
1018		basic_os=${basic_os:-bosx}
1019		;;
1020
1021	# Here we normalize CPU types irrespective of the vendor
1022	amd64-*)
1023		cpu=x86_64
1024		;;
1025	blackfin-*)
1026		cpu=bfin
1027		basic_os=linux
1028		;;
1029	c54x-*)
1030		cpu=tic54x
1031		;;
1032	c55x-*)
1033		cpu=tic55x
1034		;;
1035	c6x-*)
1036		cpu=tic6x
1037		;;
1038	e500v[12]-*)
1039		cpu=powerpc
1040		basic_os=${basic_os}"spe"
1041		;;
1042	mips3*-*)
1043		cpu=mips64
1044		;;
1045	ms1-*)
1046		cpu=mt
1047		;;
1048	m68knommu-*)
1049		cpu=m68k
1050		basic_os=linux
1051		;;
1052	m9s12z-* | m68hcs12z-* | hcs12z-* | s12z-*)
1053		cpu=s12z
1054		;;
1055	openrisc-*)
1056		cpu=or32
1057		;;
1058	parisc-*)
1059		cpu=hppa
1060		basic_os=linux
1061		;;
1062	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
1063		cpu=i586
1064		;;
1065	pentiumpro-* | p6-* | 6x86-* | athlon-* | athalon_*-*)
1066		cpu=i686
1067		;;
1068	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
1069		cpu=i686
1070		;;
1071	pentium4-*)
1072		cpu=i786
1073		;;
1074	pc98-*)
1075		cpu=i386
1076		;;
1077	ppc-* | ppcbe-*)
1078		cpu=powerpc
1079		;;
1080	ppcle-* | powerpclittle-*)
1081		cpu=powerpcle
1082		;;
1083	ppc64-*)
1084		cpu=powerpc64
1085		;;
1086	ppc64le-* | powerpc64little-*)
1087		cpu=powerpc64le
1088		;;
1089	sb1-*)
1090		cpu=mipsisa64sb1
1091		;;
1092	sb1el-*)
1093		cpu=mipsisa64sb1el
1094		;;
1095	sh5e[lb]-*)
1096		cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'`
1097		;;
1098	spur-*)
1099		cpu=spur
1100		;;
1101	strongarm-* | thumb-*)
1102		cpu=arm
1103		;;
1104	tx39-*)
1105		cpu=mipstx39
1106		;;
1107	tx39el-*)
1108		cpu=mipstx39el
1109		;;
1110	x64-*)
1111		cpu=x86_64
1112		;;
1113	xscale-* | xscalee[bl]-*)
1114		cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
1115		;;
1116	arm64-*)
1117		cpu=aarch64
1118		;;
1119
1120	# Recognize the canonical CPU Types that limit and/or modify the
1121	# company names they are paired with.
1122	cr16-*)
1123		basic_os=${basic_os:-elf}
1124		;;
1125	crisv32-* | etraxfs*-*)
1126		cpu=crisv32
1127		vendor=axis
1128		;;
1129	cris-* | etrax*-*)
1130		cpu=cris
1131		vendor=axis
1132		;;
1133	crx-*)
1134		basic_os=${basic_os:-elf}
1135		;;
1136	neo-tandem)
1137		cpu=neo
1138		vendor=tandem
1139		;;
1140	nse-tandem)
1141		cpu=nse
1142		vendor=tandem
1143		;;
1144	nsr-tandem)
1145		cpu=nsr
1146		vendor=tandem
1147		;;
1148	nsv-tandem)
1149		cpu=nsv
1150		vendor=tandem
1151		;;
1152	nsx-tandem)
1153		cpu=nsx
1154		vendor=tandem
1155		;;
1156	mipsallegrexel-sony)
1157		cpu=mipsallegrexel
1158		vendor=sony
1159		;;
1160	tile*-*)
1161		basic_os=${basic_os:-linux-gnu}
1162		;;
1163
1164	*)
1165		# Recognize the canonical CPU types that are allowed with any
1166		# company name.
1167		case $cpu in
1168			1750a | 580 \
1169			| a29k \
1170			| aarch64 | aarch64_be \
1171			| abacus \
1172			| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
1173			| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
1174			| alphapca5[67] | alpha64pca5[67] \
1175			| am33_2.0 \
1176			| amdgcn \
1177			| arc | arceb | arc32 | arc64 \
1178			| arm | arm[lb]e | arme[lb] | armv* \
1179			| avr | avr32 \
1180			| asmjs \
1181			| ba \
1182			| be32 | be64 \
1183			| bfin | bpf | bs2000 \
1184			| c[123]* | c30 | [cjt]90 | c4x \
1185			| c8051 | clipper | craynv | csky | cydra \
1186			| d10v | d30v | dlx | dsp16xx \
1187			| e2k | elxsi | epiphany \
1188			| f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
1189			| h8300 | h8500 \
1190			| hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
1191			| hexagon \
1192			| i370 | i*86 | i860 | i960 | ia16 | ia64 \
1193			| ip2k | iq2000 \
1194			| k1om \
1195			| le32 | le64 \
1196			| lm32 \
1197			| loongarch32 | loongarch64 | loongarchx32 \
1198			| m32c | m32r | m32rle \
1199			| m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
1200			| m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
1201			| m88110 | m88k | maxq | mb | mcore | mep | metag \
1202			| microblaze | microblazeel \
1203			| mips | mipsbe | mipseb | mipsel | mipsle \
1204			| mips16 \
1205			| mips64 | mips64eb | mips64el \
1206			| mips64octeon | mips64octeonel \
1207			| mips64orion | mips64orionel \
1208			| mips64r5900 | mips64r5900el \
1209			| mips64vr | mips64vrel \
1210			| mips64vr4100 | mips64vr4100el \
1211			| mips64vr4300 | mips64vr4300el \
1212			| mips64vr5000 | mips64vr5000el \
1213			| mips64vr5900 | mips64vr5900el \
1214			| mipsisa32 | mipsisa32el \
1215			| mipsisa32r2 | mipsisa32r2el \
1216			| mipsisa32r3 | mipsisa32r3el \
1217			| mipsisa32r5 | mipsisa32r5el \
1218			| mipsisa32r6 | mipsisa32r6el \
1219			| mipsisa64 | mipsisa64el \
1220			| mipsisa64r2 | mipsisa64r2el \
1221			| mipsisa64r3 | mipsisa64r3el \
1222			| mipsisa64r5 | mipsisa64r5el \
1223			| mipsisa64r6 | mipsisa64r6el \
1224			| mipsisa64sb1 | mipsisa64sb1el \
1225			| mipsisa64sr71k | mipsisa64sr71kel \
1226			| mipsr5900 | mipsr5900el \
1227			| mipstx39 | mipstx39el \
1228			| mmix \
1229			| mn10200 | mn10300 \
1230			| moxie \
1231			| mt \
1232			| msp430 \
1233			| nds32 | nds32le | nds32be \
1234			| nfp \
1235			| nios | nios2 | nios2eb | nios2el \
1236			| none | np1 | ns16k | ns32k | nvptx \
1237			| open8 \
1238			| or1k* \
1239			| or32 \
1240			| orion \
1241			| picochip \
1242			| pdp10 | pdp11 | pj | pjl | pn | power \
1243			| powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1244			| pru \
1245			| pyramid \
1246			| riscv | riscv32 | riscv32be | riscv64 | riscv64be \
1247			| rl78 | romp | rs6000 | rx \
1248			| s390 | s390x \
1249			| score \
1250			| sh | shl \
1251			| sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1252			| sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1253			| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1254			| sparclite \
1255			| sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1256			| spu \
1257			| tahoe \
1258			| thumbv7* \
1259			| tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1260			| tron \
1261			| ubicom32 \
1262			| v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1263			| vax \
1264			| visium \
1265			| w65 \
1266			| wasm32 | wasm64 \
1267			| we32k \
1268			| x86 | x86_64 | xc16x | xgate | xps100 \
1269			| xstormy16 | xtensa* \
1270			| ymp \
1271			| z8k | z80)
1272				;;
1273
1274			*)
1275				echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
1276				exit 1
1277				;;
1278		esac
1279		;;
1280esac
1281
1282# Here we canonicalize certain aliases for manufacturers.
1283case $vendor in
1284	digital*)
1285		vendor=dec
1286		;;
1287	commodore*)
1288		vendor=cbm
1289		;;
1290	*)
1291		;;
1292esac
1293
1294# Decode manufacturer-specific aliases for certain operating systems.
1295
1296if test x$basic_os != x
1297then
1298
1299# First recognize some ad-hoc caes, or perhaps split kernel-os, or else just
1300# set os.
1301case $basic_os in
1302	gnu/linux*)
1303		kernel=linux
1304		os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
1305		;;
1306	os2-emx)
1307		kernel=os2
1308		os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
1309		;;
1310	nto-qnx*)
1311		kernel=nto
1312		os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
1313		;;
1314	*-*)
1315		# shellcheck disable=SC2162
1316		IFS="-" read kernel os <<EOF
1317$basic_os
1318EOF
1319		;;
1320	# Default OS when just kernel was specified
1321	nto*)
1322		kernel=nto
1323		os=`echo "$basic_os" | sed -e 's|nto|qnx|'`
1324		;;
1325	linux*)
1326		kernel=linux
1327		os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
1328		;;
1329	*)
1330		kernel=
1331		os=$basic_os
1332		;;
1333esac
1334
1335# Now, normalize the OS (knowing we just have one component, it's not a kernel,
1336# etc.)
1337case $os in
1338	# First match some system type aliases that might get confused
1339	# with valid system types.
1340	# solaris* is a basic system type, with this one exception.
1341	auroraux)
1342		os=auroraux
1343		;;
1344	bluegene*)
1345		os=cnk
1346		;;
1347	solaris1 | solaris1.*)
1348		os=`echo "$os" | sed -e 's|solaris1|sunos4|'`
1349		;;
1350	solaris)
1351		os=solaris2
1352		;;
1353	unixware*)
1354		os=sysv4.2uw
1355		;;
1356	# es1800 is here to avoid being matched by es* (a different OS)
1357	es1800*)
1358		os=ose
1359		;;
1360	# Some version numbers need modification
1361	chorusos*)
1362		os=chorusos
1363		;;
1364	isc)
1365		os=isc2.2
1366		;;
1367	sco6)
1368		os=sco5v6
1369		;;
1370	sco5)
1371		os=sco3.2v5
1372		;;
1373	sco4)
1374		os=sco3.2v4
1375		;;
1376	sco3.2.[4-9]*)
1377		os=`echo "$os" | sed -e 's/sco3.2./sco3.2v/'`
1378		;;
1379	sco*v* | scout)
1380		# Don't match below
1381		;;
1382	sco*)
1383		os=sco3.2v2
1384		;;
1385	psos*)
1386		os=psos
1387		;;
1388	qnx*)
1389		os=qnx
1390		;;
1391	hiux*)
1392		os=hiuxwe2
1393		;;
1394	lynx*178)
1395		os=lynxos178
1396		;;
1397	lynx*5)
1398		os=lynxos5
1399		;;
1400	lynxos*)
1401		# don't get caught up in next wildcard
1402		;;
1403	lynx*)
1404		os=lynxos
1405		;;
1406	mac[0-9]*)
1407		os=`echo "$os" | sed -e 's|mac|macos|'`
1408		;;
1409	opened*)
1410		os=openedition
1411		;;
1412	os400*)
1413		os=os400
1414		;;
1415	sunos5*)
1416		os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
1417		;;
1418	sunos6*)
1419		os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
1420		;;
1421	wince*)
1422		os=wince
1423		;;
1424	utek*)
1425		os=bsd
1426		;;
1427	dynix*)
1428		os=bsd
1429		;;
1430	acis*)
1431		os=aos
1432		;;
1433	atheos*)
1434		os=atheos
1435		;;
1436	syllable*)
1437		os=syllable
1438		;;
1439	386bsd)
1440		os=bsd
1441		;;
1442	ctix* | uts*)
1443		os=sysv
1444		;;
1445	nova*)
1446		os=rtmk-nova
1447		;;
1448	ns2)
1449		os=nextstep2
1450		;;
1451	# Preserve the version number of sinix5.
1452	sinix5.*)
1453		os=`echo "$os" | sed -e 's|sinix|sysv|'`
1454		;;
1455	sinix*)
1456		os=sysv4
1457		;;
1458	tpf*)
1459		os=tpf
1460		;;
1461	triton*)
1462		os=sysv3
1463		;;
1464	oss*)
1465		os=sysv3
1466		;;
1467	svr4*)
1468		os=sysv4
1469		;;
1470	svr3)
1471		os=sysv3
1472		;;
1473	sysvr4)
1474		os=sysv4
1475		;;
1476	ose*)
1477		os=ose
1478		;;
1479	*mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1480		os=mint
1481		;;
1482	dicos*)
1483		os=dicos
1484		;;
1485	pikeos*)
1486		# Until real need of OS specific support for
1487		# particular features comes up, bare metal
1488		# configurations are quite functional.
1489		case $cpu in
1490		    arm*)
1491			os=eabi
1492			;;
1493		    *)
1494			os=elf
1495			;;
1496		esac
1497		;;
1498	*)
1499		# No normalization, but not necessarily accepted, that comes below.
1500		;;
1501esac
1502
1503else
1504
1505# Here we handle the default operating systems that come with various machines.
1506# The value should be what the vendor currently ships out the door with their
1507# machine or put another way, the most popular os provided with the machine.
1508
1509# Note that if you're going to try to match "-MANUFACTURER" here (say,
1510# "-sun"), then you have to tell the case statement up towards the top
1511# that MANUFACTURER isn't an operating system.  Otherwise, code above
1512# will signal an error saying that MANUFACTURER isn't an operating
1513# system, and we'll never get to this point.
1514
1515kernel=
1516case $cpu-$vendor in
1517	score-*)
1518		os=elf
1519		;;
1520	spu-*)
1521		os=elf
1522		;;
1523	*-acorn)
1524		os=riscix1.2
1525		;;
1526	arm*-rebel)
1527		kernel=linux
1528		os=gnu
1529		;;
1530	arm*-semi)
1531		os=aout
1532		;;
1533	c4x-* | tic4x-*)
1534		os=coff
1535		;;
1536	c8051-*)
1537		os=elf
1538		;;
1539	clipper-intergraph)
1540		os=clix
1541		;;
1542	hexagon-*)
1543		os=elf
1544		;;
1545	tic54x-*)
1546		os=coff
1547		;;
1548	tic55x-*)
1549		os=coff
1550		;;
1551	tic6x-*)
1552		os=coff
1553		;;
1554	# This must come before the *-dec entry.
1555	pdp10-*)
1556		os=tops20
1557		;;
1558	pdp11-*)
1559		os=none
1560		;;
1561	*-dec | vax-*)
1562		os=ultrix4.2
1563		;;
1564	m68*-apollo)
1565		os=domain
1566		;;
1567	i386-sun)
1568		os=sunos4.0.2
1569		;;
1570	m68000-sun)
1571		os=sunos3
1572		;;
1573	m68*-cisco)
1574		os=aout
1575		;;
1576	mep-*)
1577		os=elf
1578		;;
1579	mips*-cisco)
1580		os=elf
1581		;;
1582	mips*-*)
1583		os=elf
1584		;;
1585	or32-*)
1586		os=coff
1587		;;
1588	*-tti)	# must be before sparc entry or we get the wrong os.
1589		os=sysv3
1590		;;
1591	sparc-* | *-sun)
1592		os=sunos4.1.1
1593		;;
1594	pru-*)
1595		os=elf
1596		;;
1597	*-be)
1598		os=beos
1599		;;
1600	*-ibm)
1601		os=aix
1602		;;
1603	*-knuth)
1604		os=mmixware
1605		;;
1606	*-wec)
1607		os=proelf
1608		;;
1609	*-winbond)
1610		os=proelf
1611		;;
1612	*-oki)
1613		os=proelf
1614		;;
1615	*-hp)
1616		os=hpux
1617		;;
1618	*-hitachi)
1619		os=hiux
1620		;;
1621	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1622		os=sysv
1623		;;
1624	*-cbm)
1625		os=amigaos
1626		;;
1627	*-dg)
1628		os=dgux
1629		;;
1630	*-dolphin)
1631		os=sysv3
1632		;;
1633	m68k-ccur)
1634		os=rtu
1635		;;
1636	m88k-omron*)
1637		os=luna
1638		;;
1639	*-next)
1640		os=nextstep
1641		;;
1642	*-sequent)
1643		os=ptx
1644		;;
1645	*-crds)
1646		os=unos
1647		;;
1648	*-ns)
1649		os=genix
1650		;;
1651	i370-*)
1652		os=mvs
1653		;;
1654	*-gould)
1655		os=sysv
1656		;;
1657	*-highlevel)
1658		os=bsd
1659		;;
1660	*-encore)
1661		os=bsd
1662		;;
1663	*-sgi)
1664		os=irix
1665		;;
1666	*-siemens)
1667		os=sysv4
1668		;;
1669	*-masscomp)
1670		os=rtu
1671		;;
1672	f30[01]-fujitsu | f700-fujitsu)
1673		os=uxpv
1674		;;
1675	*-rom68k)
1676		os=coff
1677		;;
1678	*-*bug)
1679		os=coff
1680		;;
1681	*-apple)
1682		os=macos
1683		;;
1684	*-atari*)
1685		os=mint
1686		;;
1687	*-wrs)
1688		os=vxworks
1689		;;
1690	*)
1691		os=none
1692		;;
1693esac
1694
1695fi
1696
1697# Now, validate our (potentially fixed-up) OS.
1698case $os in
1699	# Sometimes we do "kernel-libc", so those need to count as OSes.
1700	musl* | newlib* | uclibc*)
1701		;;
1702	# Likewise for "kernel-abi"
1703	eabi* | gnueabi*)
1704		;;
1705	# VxWorks passes extra cpu info in the 4th filed.
1706	simlinux | simwindows | spe)
1707		;;
1708	# Now accept the basic system types.
1709	# The portable systems comes first.
1710	# Each alternative MUST end in a * to match a version number.
1711	gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1712	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1713	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1714	     | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1715	     | hiux* | abug | nacl* | netware* | windows* \
1716	     | os9* | macos* | osx* | ios* \
1717	     | mpw* | magic* | mmixware* | mon960* | lnews* \
1718	     | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1719	     | aos* | aros* | cloudabi* | sortix* | twizzler* \
1720	     | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1721	     | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1722	     | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1723	     | bitrig* | openbsd* | secbsd* | solidbsd* | libertybsd* | os108* \
1724	     | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1725	     | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
1726	     | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
1727	     | udi* | lites* | ieee* | go32* | aux* | hcos* \
1728	     | chorusrdb* | cegcc* | glidix* | serenity* \
1729	     | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
1730	     | midipix* | mingw32* | mingw64* | mint* \
1731	     | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1732	     | interix* | uwin* | mks* | rhapsody* | darwin* \
1733	     | openstep* | oskit* | conix* | pw32* | nonstopux* \
1734	     | storm-chaos* | tops10* | tenex* | tops20* | its* \
1735	     | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1736	     | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1737	     | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1738	     | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1739	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1740	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1741	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx*)
1742		;;
1743	# This one is extra strict with allowed versions
1744	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1745		# Don't forget version if it is 3.2v4 or newer.
1746		;;
1747	none)
1748		;;
1749	*)
1750		echo Invalid configuration \`"$1"\': OS \`"$os"\' not recognized 1>&2
1751		exit 1
1752		;;
1753esac
1754
1755# As a final step for OS-related things, validate the OS-kernel combination
1756# (given a valid OS), if there is a kernel.
1757case $kernel-$os in
1758	linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* | linux-musl* | linux-uclibc* )
1759		;;
1760	uclinux-uclibc* )
1761		;;
1762	-dietlibc* | -newlib* | -musl* | -uclibc* )
1763		# These are just libc implementations, not actual OSes, and thus
1764		# require a kernel.
1765		echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
1766		exit 1
1767		;;
1768	kfreebsd*-gnu* | kopensolaris*-gnu*)
1769		;;
1770	vxworks-simlinux | vxworks-simwindows | vxworks-spe)
1771		;;
1772	nto-qnx*)
1773		;;
1774	os2-emx)
1775		;;
1776	*-eabi* | *-gnueabi*)
1777		;;
1778	-*)
1779		# Blank kernel with real OS is always fine.
1780		;;
1781	*-*)
1782		echo "Invalid configuration \`$1': Kernel \`$kernel' not known to work with OS \`$os'." 1>&2
1783		exit 1
1784		;;
1785esac
1786
1787# Here we handle the case where we know the os, and the CPU type, but not the
1788# manufacturer.  We pick the logical manufacturer.
1789case $vendor in
1790	unknown)
1791		case $cpu-$os in
1792			*-riscix*)
1793				vendor=acorn
1794				;;
1795			*-sunos*)
1796				vendor=sun
1797				;;
1798			*-cnk* | *-aix*)
1799				vendor=ibm
1800				;;
1801			*-beos*)
1802				vendor=be
1803				;;
1804			*-hpux*)
1805				vendor=hp
1806				;;
1807			*-mpeix*)
1808				vendor=hp
1809				;;
1810			*-hiux*)
1811				vendor=hitachi
1812				;;
1813			*-unos*)
1814				vendor=crds
1815				;;
1816			*-dgux*)
1817				vendor=dg
1818				;;
1819			*-luna*)
1820				vendor=omron
1821				;;
1822			*-genix*)
1823				vendor=ns
1824				;;
1825			*-clix*)
1826				vendor=intergraph
1827				;;
1828			*-mvs* | *-opened*)
1829				vendor=ibm
1830				;;
1831			*-os400*)
1832				vendor=ibm
1833				;;
1834			s390-* | s390x-*)
1835				vendor=ibm
1836				;;
1837			*-ptx*)
1838				vendor=sequent
1839				;;
1840			*-tpf*)
1841				vendor=ibm
1842				;;
1843			*-vxsim* | *-vxworks* | *-windiss*)
1844				vendor=wrs
1845				;;
1846			*-aux*)
1847				vendor=apple
1848				;;
1849			*-hms*)
1850				vendor=hitachi
1851				;;
1852			*-mpw* | *-macos*)
1853				vendor=apple
1854				;;
1855			*-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1856				vendor=atari
1857				;;
1858			*-vos*)
1859				vendor=stratus
1860				;;
1861		esac
1862		;;
1863esac
1864
1865echo "$cpu-$vendor-${kernel:+$kernel-}$os"
1866exit
1867
1868# Local variables:
1869# eval: (add-hook 'before-save-hook 'time-stamp)
1870# time-stamp-start: "timestamp='"
1871# time-stamp-format: "%:y-%02m-%02d"
1872# time-stamp-end: "'"
1873# End: