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='2021-10-27'
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$help" >&2
119    exit 1;;
120esac
121
122# Split fields of configuration type
123# shellcheck disable=SC2162
124saved_IFS=$IFS
125IFS="-" read field1 field2 field3 field4 <<EOF
126$1
127EOF
128IFS=$saved_IFS
129
130# Separate into logical components for further validation
131case $1 in
132          *-*-*-*-*)
133                    echo Invalid configuration \`"$1"\': more than four components >&2
134                    exit 1
135                    ;;
136          *-*-*-*)
137                    basic_machine=$field1-$field2
138                    basic_os=$field3-$field4
139                    ;;
140          *-*-*)
141                    # Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
142                    # parts
143                    maybe_os=$field2-$field3
144                    case $maybe_os in
145                              nto-qnx* | linux-* | uclinux-uclibc* \
146                              | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
147                              | netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
148                              | storm-chaos* | os2-emx* | rtmk-nova*)
149                                        basic_machine=$field1
150                                        basic_os=$maybe_os
151                                        ;;
152                              android-linux)
153                                        basic_machine=$field1-unknown
154                                        basic_os=linux-android
155                                        ;;
156                              *)
157                                        basic_machine=$field1-$field2
158                                        basic_os=$field3
159                                        ;;
160                    esac
161                    ;;
162          *-*)
163                    # A lone config we happen to match not fitting any pattern
164                    case $field1-$field2 in
165                              decstation-3100)
166                                        basic_machine=mips-dec
167                                        basic_os=
168                                        ;;
169                              *-*)
170                                        # Second component is usually, but not always the OS
171                                        case $field2 in
172                                                  # Prevent following clause from handling this valid os
173                                                  sun*os*)
174                                                            basic_machine=$field1
175                                                            basic_os=$field2
176                                                            ;;
177                                                  zephyr*)
178                                                            basic_machine=$field1-unknown
179                                                            basic_os=$field2
180                                                            ;;
181                                                  # Manufacturers
182                                                  dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
183                                                  | att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
184                                                  | unicom* | ibm* | next | hp | isi* | apollo | altos* \
185                                                  | convergent* | ncr* | news | 32* | 3600* | 3100* \
186                                                  | hitachi* | c[123]* | convex* | sun | crds | omron* | dg \
187                                                  | ultra | tti* | harris | dolphin | highlevel | gould \
188                                                  | cbm | ns | masscomp | apple | axis | knuth | cray \
189                                                  | microblaze* | sim | cisco \
190                                                  | oki | wec | wrs | winbond)
191                                                            basic_machine=$field1-$field2
192                                                            basic_os=
193                                                            ;;
194                                                  *)
195                                                            basic_machine=$field1
196                                                            basic_os=$field2
197                                                            ;;
198                                        esac
199                              ;;
200                    esac
201                    ;;
202          *)
203                    # Convert single-component short-hands not valid as part of
204                    # multi-component configurations.
205                    case $field1 in
206                              386bsd)
207                                        basic_machine=i386-pc
208                                        basic_os=bsd
209                                        ;;
210                              a29khif)
211                                        basic_machine=a29k-amd
212                                        basic_os=udi
213                                        ;;
214                              adobe68k)
215                                        basic_machine=m68010-adobe
216                                        basic_os=scout
217                                        ;;
218                              alliant)
219                                        basic_machine=fx80-alliant
220                                        basic_os=
221                                        ;;
222                              altos | altos3068)
223                                        basic_machine=m68k-altos
224                                        basic_os=
225                                        ;;
226                              am29k)
227                                        basic_machine=a29k-none
228                                        basic_os=bsd
229                                        ;;
230                              amdahl)
231                                        basic_machine=580-amdahl
232                                        basic_os=sysv
233                                        ;;
234                              amiga)
235                                        basic_machine=m68k-unknown
236                                        basic_os=
237                                        ;;
238                              amigaos | amigados)
239                                        basic_machine=m68k-unknown
240                                        basic_os=amigaos
241                                        ;;
242                              amigaunix | amix)
243                                        basic_machine=m68k-unknown
244                                        basic_os=sysv4
245                                        ;;
246                              apollo68)
247                                        basic_machine=m68k-apollo
248                                        basic_os=sysv
249                                        ;;
250                              apollo68bsd)
251                                        basic_machine=m68k-apollo
252                                        basic_os=bsd
253                                        ;;
254                              aros)
255                                        basic_machine=i386-pc
256                                        basic_os=aros
257                                        ;;
258                              aux)
259                                        basic_machine=m68k-apple
260                                        basic_os=aux
261                                        ;;
262                              balance)
263                                        basic_machine=ns32k-sequent
264                                        basic_os=dynix
265                                        ;;
266                              blackfin)
267                                        basic_machine=bfin-unknown
268                                        basic_os=linux
269                                        ;;
270                              cegcc)
271                                        basic_machine=arm-unknown
272                                        basic_os=cegcc
273                                        ;;
274                              convex-c1)
275                                        basic_machine=c1-convex
276                                        basic_os=bsd
277                                        ;;
278                              convex-c2)
279                                        basic_machine=c2-convex
280                                        basic_os=bsd
281                                        ;;
282                              convex-c32)
283                                        basic_machine=c32-convex
284                                        basic_os=bsd
285                                        ;;
286                              convex-c34)
287                                        basic_machine=c34-convex
288                                        basic_os=bsd
289                                        ;;
290                              convex-c38)
291                                        basic_machine=c38-convex
292                                        basic_os=bsd
293                                        ;;
294                              cray)
295                                        basic_machine=j90-cray
296                                        basic_os=unicos
297                                        ;;
298                              crds | unos)
299                                        basic_machine=m68k-crds
300                                        basic_os=
301                                        ;;
302                              da30)
303                                        basic_machine=m68k-da30
304                                        basic_os=
305                                        ;;
306                              decstation | pmax | pmin | dec3100 | decstatn)
307                                        basic_machine=mips-dec
308                                        basic_os=
309                                        ;;
310                              delta88)
311                                        basic_machine=m88k-motorola
312                                        basic_os=sysv3
313                                        ;;
314                              dicos)
315                                        basic_machine=i686-pc
316                                        basic_os=dicos
317                                        ;;
318                              djgpp)
319                                        basic_machine=i586-pc
320                                        basic_os=msdosdjgpp
321                                        ;;
322                              ebmon29k)
323                                        basic_machine=a29k-amd
324                                        basic_os=ebmon
325                                        ;;
326                              es1800 | OSE68k | ose68k | ose | OSE)
327                                        basic_machine=m68k-ericsson
328                                        basic_os=ose
329                                        ;;
330                              gmicro)
331                                        basic_machine=tron-gmicro
332                                        basic_os=sysv
333                                        ;;
334                              go32)
335                                        basic_machine=i386-pc
336                                        basic_os=go32
337                                        ;;
338                              h8300hms)
339                                        basic_machine=h8300-hitachi
340                                        basic_os=hms
341                                        ;;
342                              h8300xray)
343                                        basic_machine=h8300-hitachi
344                                        basic_os=xray
345                                        ;;
346                              h8500hms)
347                                        basic_machine=h8500-hitachi
348                                        basic_os=hms
349                                        ;;
350                              harris)
351                                        basic_machine=m88k-harris
352                                        basic_os=sysv3
353                                        ;;
354                              hp300 | hp300hpux)
355                                        basic_machine=m68k-hp
356                                        basic_os=hpux
357                                        ;;
358                              hp300bsd)
359                                        basic_machine=m68k-hp
360                                        basic_os=bsd
361                                        ;;
362                              hppaosf)
363                                        basic_machine=hppa1.1-hp
364                                        basic_os=osf
365                                        ;;
366                              hppro)
367                                        basic_machine=hppa1.1-hp
368                                        basic_os=proelf
369                                        ;;
370                              i386mach)
371                                        basic_machine=i386-mach
372                                        basic_os=mach
373                                        ;;
374                              isi68 | isi)
375                                        basic_machine=m68k-isi
376                                        basic_os=sysv
377                                        ;;
378                              m68knommu)
379                                        basic_machine=m68k-unknown
380                                        basic_os=linux
381                                        ;;
382                              magnum | m3230)
383                                        basic_machine=mips-mips
384                                        basic_os=sysv
385                                        ;;
386                              merlin)
387                                        basic_machine=ns32k-utek
388                                        basic_os=sysv
389                                        ;;
390                              mingw64)
391                                        basic_machine=x86_64-pc
392                                        basic_os=mingw64
393                                        ;;
394                              mingw32)
395                                        basic_machine=i686-pc
396                                        basic_os=mingw32
397                                        ;;
398                              mingw32ce)
399                                        basic_machine=arm-unknown
400                                        basic_os=mingw32ce
401                                        ;;
402                              monitor)
403                                        basic_machine=m68k-rom68k
404                                        basic_os=coff
405                                        ;;
406                              morphos)
407                                        basic_machine=powerpc-unknown
408                                        basic_os=morphos
409                                        ;;
410                              moxiebox)
411                                        basic_machine=moxie-unknown
412                                        basic_os=moxiebox
413                                        ;;
414                              msdos)
415                                        basic_machine=i386-pc
416                                        basic_os=msdos
417                                        ;;
418                              msys)
419                                        basic_machine=i686-pc
420                                        basic_os=msys
421                                        ;;
422                              mvs)
423                                        basic_machine=i370-ibm
424                                        basic_os=mvs
425                                        ;;
426                              nacl)
427                                        basic_machine=le32-unknown
428                                        basic_os=nacl
429                                        ;;
430                              ncr3000)
431                                        basic_machine=i486-ncr
432                                        basic_os=sysv4
433                                        ;;
434                              netbsd386)
435                                        basic_machine=i386-pc
436                                        basic_os=netbsd
437                                        ;;
438                              netwinder)
439                                        basic_machine=armv4l-rebel
440                                        basic_os=linux
441                                        ;;
442                              news | news700 | news800 | news900)
443                                        basic_machine=m68k-sony
444                                        basic_os=newsos
445                                        ;;
446                              news1000)
447                                        basic_machine=m68030-sony
448                                        basic_os=newsos
449                                        ;;
450                              necv70)
451                                        basic_machine=v70-nec
452                                        basic_os=sysv
453                                        ;;
454                              nh3000)
455                                        basic_machine=m68k-harris
456                                        basic_os=cxux
457                                        ;;
458                              nh[45]000)
459                                        basic_machine=m88k-harris
460                                        basic_os=cxux
461                                        ;;
462                              nindy960)
463                                        basic_machine=i960-intel
464                                        basic_os=nindy
465                                        ;;
466                              mon960)
467                                        basic_machine=i960-intel
468                                        basic_os=mon960
469                                        ;;
470                              nonstopux)
471                                        basic_machine=mips-compaq
472                                        basic_os=nonstopux
473                                        ;;
474                              os400)
475                                        basic_machine=powerpc-ibm
476                                        basic_os=os400
477                                        ;;
478                              OSE68000 | ose68000)
479                                        basic_machine=m68000-ericsson
480                                        basic_os=ose
481                                        ;;
482                              os68k)
483                                        basic_machine=m68k-none
484                                        basic_os=os68k
485                                        ;;
486                              paragon)
487                                        basic_machine=i860-intel
488                                        basic_os=osf
489                                        ;;
490                              parisc)
491                                        basic_machine=hppa-unknown
492                                        basic_os=linux
493                                        ;;
494                              psp)
495                                        basic_machine=mipsallegrexel-sony
496                                        basic_os=psp
497                                        ;;
498                              pw32)
499                                        basic_machine=i586-unknown
500                                        basic_os=pw32
501                                        ;;
502                              rdos | rdos64)
503                                        basic_machine=x86_64-pc
504                                        basic_os=rdos
505                                        ;;
506                              rdos32)
507                                        basic_machine=i386-pc
508                                        basic_os=rdos
509                                        ;;
510                              rom68k)
511                                        basic_machine=m68k-rom68k
512                                        basic_os=coff
513                                        ;;
514                              sa29200)
515                                        basic_machine=a29k-amd
516                                        basic_os=udi
517                                        ;;
518                              sei)
519                                        basic_machine=mips-sei
520                                        basic_os=seiux
521                                        ;;
522                              sequent)
523                                        basic_machine=i386-sequent
524                                        basic_os=
525                                        ;;
526                              sps7)
527                                        basic_machine=m68k-bull
528                                        basic_os=sysv2
529                                        ;;
530                              st2000)
531                                        basic_machine=m68k-tandem
532                                        basic_os=
533                                        ;;
534                              stratus)
535                                        basic_machine=i860-stratus
536                                        basic_os=sysv4
537                                        ;;
538                              sun2)
539                                        basic_machine=m68000-sun
540                                        basic_os=
541                                        ;;
542                              sun2os3)
543                                        basic_machine=m68000-sun
544                                        basic_os=sunos3
545                                        ;;
546                              sun2os4)
547                                        basic_machine=m68000-sun
548                                        basic_os=sunos4
549                                        ;;
550                              sun3)
551                                        basic_machine=m68k-sun
552                                        basic_os=
553                                        ;;
554                              sun3os3)
555                                        basic_machine=m68k-sun
556                                        basic_os=sunos3
557                                        ;;
558                              sun3os4)
559                                        basic_machine=m68k-sun
560                                        basic_os=sunos4
561                                        ;;
562                              sun4)
563                                        basic_machine=sparc-sun
564                                        basic_os=
565                                        ;;
566                              sun4os3)
567                                        basic_machine=sparc-sun
568                                        basic_os=sunos3
569                                        ;;
570                              sun4os4)
571                                        basic_machine=sparc-sun
572                                        basic_os=sunos4
573                                        ;;
574                              sun4sol2)
575                                        basic_machine=sparc-sun
576                                        basic_os=solaris2
577                                        ;;
578                              sun386 | sun386i | roadrunner)
579                                        basic_machine=i386-sun
580                                        basic_os=
581                                        ;;
582                              sv1)
583                                        basic_machine=sv1-cray
584                                        basic_os=unicos
585                                        ;;
586                              symmetry)
587                                        basic_machine=i386-sequent
588                                        basic_os=dynix
589                                        ;;
590                              t3e)
591                                        basic_machine=alphaev5-cray
592                                        basic_os=unicos
593                                        ;;
594                              t90)
595                                        basic_machine=t90-cray
596                                        basic_os=unicos
597                                        ;;
598                              toad1)
599                                        basic_machine=pdp10-xkl
600                                        basic_os=tops20
601                                        ;;
602                              tpf)
603                                        basic_machine=s390x-ibm
604                                        basic_os=tpf
605                                        ;;
606                              udi29k)
607                                        basic_machine=a29k-amd
608                                        basic_os=udi
609                                        ;;
610                              ultra3)
611                                        basic_machine=a29k-nyu
612                                        basic_os=sym1
613                                        ;;
614                              v810 | necv810)
615                                        basic_machine=v810-nec
616                                        basic_os=none
617                                        ;;
618                              vaxv)
619                                        basic_machine=vax-dec
620                                        basic_os=sysv
621                                        ;;
622                              vms)
623                                        basic_machine=vax-dec
624                                        basic_os=vms
625                                        ;;
626                              vsta)
627                                        basic_machine=i386-pc
628                                        basic_os=vsta
629                                        ;;
630                              vxworks960)
631                                        basic_machine=i960-wrs
632                                        basic_os=vxworks
633                                        ;;
634                              vxworks68)
635                                        basic_machine=m68k-wrs
636                                        basic_os=vxworks
637                                        ;;
638                              vxworks29k)
639                                        basic_machine=a29k-wrs
640                                        basic_os=vxworks
641                                        ;;
642                              xbox)
643                                        basic_machine=i686-pc
644                                        basic_os=mingw32
645                                        ;;
646                              ymp)
647                                        basic_machine=ymp-cray
648                                        basic_os=unicos
649                                        ;;
650                              *)
651                                        basic_machine=$1
652                                        basic_os=
653                                        ;;
654                    esac
655                    ;;
656esac
657
658# Decode 1-component or ad-hoc basic machines
659case $basic_machine in
660          # Here we handle the default manufacturer of certain CPU types.  It is in
661          # some cases the only manufacturer, in others, it is the most popular.
662          w89k)
663                    cpu=hppa1.1
664                    vendor=winbond
665                    ;;
666          op50n)
667                    cpu=hppa1.1
668                    vendor=oki
669                    ;;
670          op60c)
671                    cpu=hppa1.1
672                    vendor=oki
673                    ;;
674          ibm*)
675                    cpu=i370
676                    vendor=ibm
677                    ;;
678          orion105)
679                    cpu=clipper
680                    vendor=highlevel
681                    ;;
682          mac | mpw | mac-mpw)
683                    cpu=m68k
684                    vendor=apple
685                    ;;
686          pmac | pmac-mpw)
687                    cpu=powerpc
688                    vendor=apple
689                    ;;
690
691          # Recognize the various machine names and aliases which stand
692          # for a CPU type and a company and sometimes even an OS.
693          3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
694                    cpu=m68000
695                    vendor=att
696                    ;;
697          3b*)
698                    cpu=we32k
699                    vendor=att
700                    ;;
701          bluegene*)
702                    cpu=powerpc
703                    vendor=ibm
704                    basic_os=cnk
705                    ;;
706          decsystem10* | dec10*)
707                    cpu=pdp10
708                    vendor=dec
709                    basic_os=tops10
710                    ;;
711          decsystem20* | dec20*)
712                    cpu=pdp10
713                    vendor=dec
714                    basic_os=tops20
715                    ;;
716          delta | 3300 | motorola-3300 | motorola-delta \
717                | 3300-motorola | delta-motorola)
718                    cpu=m68k
719                    vendor=motorola
720                    ;;
721          dpx2*)
722                    cpu=m68k
723                    vendor=bull
724                    basic_os=sysv3
725                    ;;
726          encore | umax | mmax)
727                    cpu=ns32k
728                    vendor=encore
729                    ;;
730          elxsi)
731                    cpu=elxsi
732                    vendor=elxsi
733                    basic_os=${basic_os:-bsd}
734                    ;;
735          fx2800)
736                    cpu=i860
737                    vendor=alliant
738                    ;;
739          genix)
740                    cpu=ns32k
741                    vendor=ns
742                    ;;
743          h3050r* | hiux*)
744                    cpu=hppa1.1
745                    vendor=hitachi
746                    basic_os=hiuxwe2
747                    ;;
748          hp3k9[0-9][0-9] | hp9[0-9][0-9])
749                    cpu=hppa1.0
750                    vendor=hp
751                    ;;
752          hp9k2[0-9][0-9] | hp9k31[0-9])
753                    cpu=m68000
754                    vendor=hp
755                    ;;
756          hp9k3[2-9][0-9])
757                    cpu=m68k
758                    vendor=hp
759                    ;;
760          hp9k6[0-9][0-9] | hp6[0-9][0-9])
761                    cpu=hppa1.0
762                    vendor=hp
763                    ;;
764          hp9k7[0-79][0-9] | hp7[0-79][0-9])
765                    cpu=hppa1.1
766                    vendor=hp
767                    ;;
768          hp9k78[0-9] | hp78[0-9])
769                    # FIXME: really hppa2.0-hp
770                    cpu=hppa1.1
771                    vendor=hp
772                    ;;
773          hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
774                    # FIXME: really hppa2.0-hp
775                    cpu=hppa1.1
776                    vendor=hp
777                    ;;
778          hp9k8[0-9][13679] | hp8[0-9][13679])
779                    cpu=hppa1.1
780                    vendor=hp
781                    ;;
782          hp9k8[0-9][0-9] | hp8[0-9][0-9])
783                    cpu=hppa1.0
784                    vendor=hp
785                    ;;
786          i*86v32)
787                    cpu=`echo "$1" | sed -e 's/86.*/86/'`
788                    vendor=pc
789                    basic_os=sysv32
790                    ;;
791          i*86v4*)
792                    cpu=`echo "$1" | sed -e 's/86.*/86/'`
793                    vendor=pc
794                    basic_os=sysv4
795                    ;;
796          i*86v)
797                    cpu=`echo "$1" | sed -e 's/86.*/86/'`
798                    vendor=pc
799                    basic_os=sysv
800                    ;;
801          i*86sol2)
802                    cpu=`echo "$1" | sed -e 's/86.*/86/'`
803                    vendor=pc
804                    basic_os=solaris2
805                    ;;
806          j90 | j90-cray)
807                    cpu=j90
808                    vendor=cray
809                    basic_os=${basic_os:-unicos}
810                    ;;
811          iris | iris4d)
812                    cpu=mips
813                    vendor=sgi
814                    case $basic_os in
815                        irix*)
816                              ;;
817                        *)
818                              basic_os=irix4
819                              ;;
820                    esac
821                    ;;
822          miniframe)
823                    cpu=m68000
824                    vendor=convergent
825                    ;;
826          *mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
827                    cpu=m68k
828                    vendor=atari
829                    basic_os=mint
830                    ;;
831          news-3600 | risc-news)
832                    cpu=mips
833                    vendor=sony
834                    basic_os=newsos
835                    ;;
836          next | m*-next)
837                    cpu=m68k
838                    vendor=next
839                    case $basic_os in
840                        openstep*)
841                            ;;
842                        nextstep*)
843                              ;;
844                        ns2*)
845                          basic_os=nextstep2
846                              ;;
847                        *)
848                          basic_os=nextstep3
849                              ;;
850                    esac
851                    ;;
852          np1)
853                    cpu=np1
854                    vendor=gould
855                    ;;
856          op50n-* | op60c-*)
857                    cpu=hppa1.1
858                    vendor=oki
859                    basic_os=proelf
860                    ;;
861          pa-hitachi)
862                    cpu=hppa1.1
863                    vendor=hitachi
864                    basic_os=hiuxwe2
865                    ;;
866          pbd)
867                    cpu=sparc
868                    vendor=tti
869                    ;;
870          pbb)
871                    cpu=m68k
872                    vendor=tti
873                    ;;
874          pc532)
875                    cpu=ns32k
876                    vendor=pc532
877                    ;;
878          pn)
879                    cpu=pn
880                    vendor=gould
881                    ;;
882          power)
883                    cpu=power
884                    vendor=ibm
885                    ;;
886          ps2)
887                    cpu=i386
888                    vendor=ibm
889                    ;;
890          rm[46]00)
891                    cpu=mips
892                    vendor=siemens
893                    ;;
894          rtpc | rtpc-*)
895                    cpu=romp
896                    vendor=ibm
897                    ;;
898          sde)
899                    cpu=mipsisa32
900                    vendor=sde
901                    basic_os=${basic_os:-elf}
902                    ;;
903          simso-wrs)
904                    cpu=sparclite
905                    vendor=wrs
906                    basic_os=vxworks
907                    ;;
908          tower | tower-32)
909                    cpu=m68k
910                    vendor=ncr
911                    ;;
912          vpp*|vx|vx-*)
913                    cpu=f301
914                    vendor=fujitsu
915                    ;;
916          w65)
917                    cpu=w65
918                    vendor=wdc
919                    ;;
920          w89k-*)
921                    cpu=hppa1.1
922                    vendor=winbond
923                    basic_os=proelf
924                    ;;
925          none)
926                    cpu=none
927                    vendor=none
928                    ;;
929          leon|leon[3-9])
930                    cpu=sparc
931                    vendor=$basic_machine
932                    ;;
933          leon-*|leon[3-9]-*)
934                    cpu=sparc
935                    vendor=`echo "$basic_machine" | sed 's/-.*//'`
936                    ;;
937
938          *-*)
939                    # shellcheck disable=SC2162
940                    saved_IFS=$IFS
941                    IFS="-" read cpu vendor <<EOF
942$basic_machine
943EOF
944                    IFS=$saved_IFS
945                    ;;
946          # We use `pc' rather than `unknown'
947          # because (1) that's what they normally are, and
948          # (2) the word "unknown" tends to confuse beginning users.
949          i*86 | x86_64)
950                    cpu=$basic_machine
951                    vendor=pc
952                    ;;
953          # These rules are duplicated from below for sake of the special case above;
954          # i.e. things that normalized to x86 arches should also default to "pc"
955          pc98)
956                    cpu=i386
957                    vendor=pc
958                    ;;
959          x64 | amd64)
960                    cpu=x86_64
961                    vendor=pc
962                    ;;
963          # Recognize the basic CPU types without company name.
964          *)
965                    cpu=$basic_machine
966                    vendor=unknown
967                    ;;
968esac
969
970unset -v basic_machine
971
972# Decode basic machines in the full and proper CPU-Company form.
973case $cpu-$vendor in
974          # Here we handle the default manufacturer of certain CPU types in canonical form. It is in
975          # some cases the only manufacturer, in others, it is the most popular.
976          craynv-unknown)
977                    vendor=cray
978                    basic_os=${basic_os:-unicosmp}
979                    ;;
980          c90-unknown | c90-cray)
981                    vendor=cray
982                    basic_os=${Basic_os:-unicos}
983                    ;;
984          fx80-unknown)
985                    vendor=alliant
986                    ;;
987          romp-unknown)
988                    vendor=ibm
989                    ;;
990          mmix-unknown)
991                    vendor=knuth
992                    ;;
993          microblaze-unknown | microblazeel-unknown)
994                    vendor=xilinx
995                    ;;
996          rs6000-unknown)
997                    vendor=ibm
998                    ;;
999          vax-unknown)
1000                    vendor=dec
1001                    ;;
1002          pdp11-unknown)
1003                    vendor=dec
1004                    ;;
1005          we32k-unknown)
1006                    vendor=att
1007                    ;;
1008          cydra-unknown)
1009                    vendor=cydrome
1010                    ;;
1011          i370-ibm*)
1012                    vendor=ibm
1013                    ;;
1014          orion-unknown)
1015                    vendor=highlevel
1016                    ;;
1017          xps-unknown | xps100-unknown)
1018                    cpu=xps100
1019                    vendor=honeywell
1020                    ;;
1021
1022          # Here we normalize CPU types with a missing or matching vendor
1023          dpx20-unknown | dpx20-bull)
1024                    cpu=rs6000
1025                    vendor=bull
1026                    basic_os=${basic_os:-bosx}
1027                    ;;
1028
1029          # Here we normalize CPU types irrespective of the vendor
1030          amd64-*)
1031                    cpu=x86_64
1032                    ;;
1033          blackfin-*)
1034                    cpu=bfin
1035                    basic_os=linux
1036                    ;;
1037          c54x-*)
1038                    cpu=tic54x
1039                    ;;
1040          c55x-*)
1041                    cpu=tic55x
1042                    ;;
1043          c6x-*)
1044                    cpu=tic6x
1045                    ;;
1046          e500v[12]-*)
1047                    cpu=powerpc
1048                    basic_os=${basic_os}"spe"
1049                    ;;
1050          mips3*-*)
1051                    cpu=mips64
1052                    ;;
1053          ms1-*)
1054                    cpu=mt
1055                    ;;
1056          m68knommu-*)
1057                    cpu=m68k
1058                    basic_os=linux
1059                    ;;
1060          m9s12z-* | m68hcs12z-* | hcs12z-* | s12z-*)
1061                    cpu=s12z
1062                    ;;
1063          openrisc-*)
1064                    cpu=or32
1065                    ;;
1066          parisc-*)
1067                    cpu=hppa
1068                    basic_os=linux
1069                    ;;
1070          pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
1071                    cpu=i586
1072                    ;;
1073          pentiumpro-* | p6-* | 6x86-* | athlon-* | athalon_*-*)
1074                    cpu=i686
1075                    ;;
1076          pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
1077                    cpu=i686
1078                    ;;
1079          pentium4-*)
1080                    cpu=i786
1081                    ;;
1082          pc98-*)
1083                    cpu=i386
1084                    ;;
1085          ppc-* | ppcbe-*)
1086                    cpu=powerpc
1087                    ;;
1088          ppcle-* | powerpclittle-*)
1089                    cpu=powerpcle
1090                    ;;
1091          ppc64-*)
1092                    cpu=powerpc64
1093                    ;;
1094          ppc64le-* | powerpc64little-*)
1095                    cpu=powerpc64le
1096                    ;;
1097          sb1-*)
1098                    cpu=mipsisa64sb1
1099                    ;;
1100          sb1el-*)
1101                    cpu=mipsisa64sb1el
1102                    ;;
1103          sh5e[lb]-*)
1104                    cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'`
1105                    ;;
1106          spur-*)
1107                    cpu=spur
1108                    ;;
1109          strongarm-* | thumb-*)
1110                    cpu=arm
1111                    ;;
1112          tx39-*)
1113                    cpu=mipstx39
1114                    ;;
1115          tx39el-*)
1116                    cpu=mipstx39el
1117                    ;;
1118          x64-*)
1119                    cpu=x86_64
1120                    ;;
1121          xscale-* | xscalee[bl]-*)
1122                    cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
1123                    ;;
1124          arm64-*)
1125                    cpu=aarch64
1126                    ;;
1127
1128          # Recognize the canonical CPU Types that limit and/or modify the
1129          # company names they are paired with.
1130          cr16-*)
1131                    basic_os=${basic_os:-elf}
1132                    ;;
1133          crisv32-* | etraxfs*-*)
1134                    cpu=crisv32
1135                    vendor=axis
1136                    ;;
1137          cris-* | etrax*-*)
1138                    cpu=cris
1139                    vendor=axis
1140                    ;;
1141          crx-*)
1142                    basic_os=${basic_os:-elf}
1143                    ;;
1144          neo-tandem)
1145                    cpu=neo
1146                    vendor=tandem
1147                    ;;
1148          nse-tandem)
1149                    cpu=nse
1150                    vendor=tandem
1151                    ;;
1152          nsr-tandem)
1153                    cpu=nsr
1154                    vendor=tandem
1155                    ;;
1156          nsv-tandem)
1157                    cpu=nsv
1158                    vendor=tandem
1159                    ;;
1160          nsx-tandem)
1161                    cpu=nsx
1162                    vendor=tandem
1163                    ;;
1164          mipsallegrexel-sony)
1165                    cpu=mipsallegrexel
1166                    vendor=sony
1167                    ;;
1168          tile*-*)
1169                    basic_os=${basic_os:-linux-gnu}
1170                    ;;
1171
1172          *)
1173                    # Recognize the canonical CPU types that are allowed with any
1174                    # company name.
1175                    case $cpu in
1176                              1750a | 580 \
1177                              | a29k \
1178                              | aarch64 | aarch64_be \
1179                              | abacus \
1180                              | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
1181                              | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
1182                              | alphapca5[67] | alpha64pca5[67] \
1183                              | am33_2.0 \
1184                              | amdgcn \
1185                              | arc | arceb | arc32 | arc64 \
1186                              | arm | arm[lb]e | arme[lb] | armv* \
1187                              | avr | avr32 \
1188                              | asmjs \
1189                              | ba \
1190                              | be32 | be64 \
1191                              | bfin | bpf | bs2000 \
1192                              | c[123]* | c30 | [cjt]90 | c4x \
1193                              | c8051 | clipper | craynv | csky | cydra \
1194                              | d10v | d30v | dlx | dsp16xx \
1195                              | e2k | elxsi | epiphany \
1196                              | f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
1197                              | h8300 | h8500 \
1198                              | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
1199                              | hexagon \
1200                              | i370 | i*86 | i860 | i960 | ia16 | ia64 \
1201                              | ip2k | iq2000 \
1202                              | k1om \
1203                              | le32 | le64 \
1204                              | lm32 \
1205                              | loongarch32 | loongarch64 | loongarchx32 \
1206                              | m32c | m32r | m32rle \
1207                              | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
1208                              | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
1209                              | m88110 | m88k | maxq | mb | mcore | mep | metag \
1210                              | microblaze | microblazeel \
1211                              | mips | mipsbe | mipseb | mipsel | mipsle \
1212                              | mips16 \
1213                              | mips64 | mips64eb | mips64el \
1214                              | mipsn64 | mipsn64eb | mipsn64el \
1215                              | mips64octeon | mips64octeonel \
1216                              | mips64orion | mips64orionel \
1217                              | mips64r5900 | mips64r5900el \
1218                              | mips64vr | mips64vrel \
1219                              | mips64vr4100 | mips64vr4100el \
1220                              | mips64vr4300 | mips64vr4300el \
1221                              | mips64vr5000 | mips64vr5000el \
1222                              | mips64vr5900 | mips64vr5900el \
1223                              | mipsisa32 | mipsisa32el \
1224                              | mipsisa32r2 | mipsisa32r2el \
1225                              | mipsisa32r3 | mipsisa32r3el \
1226                              | mipsisa32r5 | mipsisa32r5el \
1227                              | mipsisa32r6 | mipsisa32r6el \
1228                              | mipsisa64 | mipsisa64el \
1229                              | mipsisa64r2 | mipsisa64r2el \
1230                              | mipsisa64r3 | mipsisa64r3el \
1231                              | mipsisa64r5 | mipsisa64r5el \
1232                              | mipsisa64r6 | mipsisa64r6el \
1233                              | mipsisa64sb1 | mipsisa64sb1el \
1234                              | mipsisa64sr71k | mipsisa64sr71kel \
1235                              | mipsr5900 | mipsr5900el \
1236                              | mipstx39 | mipstx39el \
1237                              | mmix \
1238                              | mn10200 | mn10300 \
1239                              | moxie \
1240                              | mt \
1241                              | msp430 \
1242                              | nds32 | nds32le | nds32be \
1243                              | nfp \
1244                              | nios | nios2 | nios2eb | nios2el \
1245                              | none | np1 | ns16k | ns32k | nvptx \
1246                              | open8 \
1247                              | or1k* \
1248                              | or32 \
1249                              | orion \
1250                              | picochip \
1251                              | pdp10 | pdp11 | pj | pjl | pn | power \
1252                              | powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1253                              | pru \
1254                              | pyramid \
1255                              | riscv | riscv32 | riscv32be | riscv64 | riscv64be \
1256                              | rl78 | romp | rs6000 | rx \
1257                              | s390 | s390x \
1258                              | score \
1259                              | sh | shl \
1260                              | sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1261                              | sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1262                              | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1263                              | sparclite \
1264                              | sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1265                              | spu \
1266                              | tahoe \
1267                              | thumbv7* \
1268                              | tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1269                              | tron \
1270                              | ubicom32 \
1271                              | v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1272                              | vax \
1273                              | visium \
1274                              | w65 \
1275                              | wasm32 | wasm64 \
1276                              | we32k \
1277                              | x86 | x86_64 | xc16x | xgate | xps100 \
1278                              | xstormy16 | xtensa* \
1279                              | ymp \
1280                              | z8k | z80)
1281                                        ;;
1282
1283                              *)
1284                                        echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
1285                                        exit 1
1286                                        ;;
1287                    esac
1288                    ;;
1289esac
1290
1291# Here we canonicalize certain aliases for manufacturers.
1292case $vendor in
1293          digital*)
1294                    vendor=dec
1295                    ;;
1296          commodore*)
1297                    vendor=cbm
1298                    ;;
1299          *)
1300                    ;;
1301esac
1302
1303# Decode manufacturer-specific aliases for certain operating systems.
1304
1305if test x$basic_os != x
1306then
1307
1308# First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
1309# set os.
1310case $basic_os in
1311          gnu/linux*)
1312                    kernel=linux
1313                    os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
1314                    ;;
1315          os2-emx)
1316                    kernel=os2
1317                    os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
1318                    ;;
1319          nto-qnx*)
1320                    kernel=nto
1321                    os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
1322                    ;;
1323          *-*)
1324                    # shellcheck disable=SC2162
1325                    saved_IFS=$IFS
1326                    IFS="-" read kernel os <<EOF
1327$basic_os
1328EOF
1329                    IFS=$saved_IFS
1330                    ;;
1331          # Default OS when just kernel was specified
1332          nto*)
1333                    kernel=nto
1334                    os=`echo "$basic_os" | sed -e 's|nto|qnx|'`
1335                    ;;
1336          linux*)
1337                    kernel=linux
1338                    os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
1339                    ;;
1340          *)
1341                    kernel=
1342                    os=$basic_os
1343                    ;;
1344esac
1345
1346# Now, normalize the OS (knowing we just have one component, it's not a kernel,
1347# etc.)
1348case $os in
1349          # First match some system type aliases that might get confused
1350          # with valid system types.
1351          # solaris* is a basic system type, with this one exception.
1352          auroraux)
1353                    os=auroraux
1354                    ;;
1355          bluegene*)
1356                    os=cnk
1357                    ;;
1358          solaris1 | solaris1.*)
1359                    os=`echo "$os" | sed -e 's|solaris1|sunos4|'`
1360                    ;;
1361          solaris)
1362                    os=solaris2
1363                    ;;
1364          unixware*)
1365                    os=sysv4.2uw
1366                    ;;
1367          # es1800 is here to avoid being matched by es* (a different OS)
1368          es1800*)
1369                    os=ose
1370                    ;;
1371          # Some version numbers need modification
1372          chorusos*)
1373                    os=chorusos
1374                    ;;
1375          isc)
1376                    os=isc2.2
1377                    ;;
1378          sco6)
1379                    os=sco5v6
1380                    ;;
1381          sco5)
1382                    os=sco3.2v5
1383                    ;;
1384          sco4)
1385                    os=sco3.2v4
1386                    ;;
1387          sco3.2.[4-9]*)
1388                    os=`echo "$os" | sed -e 's/sco3.2./sco3.2v/'`
1389                    ;;
1390          sco*v* | scout)
1391                    # Don't match below
1392                    ;;
1393          sco*)
1394                    os=sco3.2v2
1395                    ;;
1396          psos*)
1397                    os=psos
1398                    ;;
1399          qnx*)
1400                    os=qnx
1401                    ;;
1402          hiux*)
1403                    os=hiuxwe2
1404                    ;;
1405          lynx*178)
1406                    os=lynxos178
1407                    ;;
1408          lynx*5)
1409                    os=lynxos5
1410                    ;;
1411          lynxos*)
1412                    # don't get caught up in next wildcard
1413                    ;;
1414          lynx*)
1415                    os=lynxos
1416                    ;;
1417          mac[0-9]*)
1418                    os=`echo "$os" | sed -e 's|mac|macos|'`
1419                    ;;
1420          opened*)
1421                    os=openedition
1422                    ;;
1423          os400*)
1424                    os=os400
1425                    ;;
1426          sunos5*)
1427                    os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
1428                    ;;
1429          sunos6*)
1430                    os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
1431                    ;;
1432          wince*)
1433                    os=wince
1434                    ;;
1435          utek*)
1436                    os=bsd
1437                    ;;
1438          dynix*)
1439                    os=bsd
1440                    ;;
1441          acis*)
1442                    os=aos
1443                    ;;
1444          atheos*)
1445                    os=atheos
1446                    ;;
1447          syllable*)
1448                    os=syllable
1449                    ;;
1450          386bsd)
1451                    os=bsd
1452                    ;;
1453          ctix* | uts*)
1454                    os=sysv
1455                    ;;
1456          nova*)
1457                    os=rtmk-nova
1458                    ;;
1459          ns2)
1460                    os=nextstep2
1461                    ;;
1462          # Preserve the version number of sinix5.
1463          sinix5.*)
1464                    os=`echo "$os" | sed -e 's|sinix|sysv|'`
1465                    ;;
1466          sinix*)
1467                    os=sysv4
1468                    ;;
1469          tpf*)
1470                    os=tpf
1471                    ;;
1472          triton*)
1473                    os=sysv3
1474                    ;;
1475          oss*)
1476                    os=sysv3
1477                    ;;
1478          svr4*)
1479                    os=sysv4
1480                    ;;
1481          svr3)
1482                    os=sysv3
1483                    ;;
1484          sysvr4)
1485                    os=sysv4
1486                    ;;
1487          ose*)
1488                    os=ose
1489                    ;;
1490          *mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1491                    os=mint
1492                    ;;
1493          dicos*)
1494                    os=dicos
1495                    ;;
1496          pikeos*)
1497                    # Until real need of OS specific support for
1498                    # particular features comes up, bare metal
1499                    # configurations are quite functional.
1500                    case $cpu in
1501                        arm*)
1502                              os=eabi
1503                              ;;
1504                        *)
1505                              os=elf
1506                              ;;
1507                    esac
1508                    ;;
1509          *)
1510                    # No normalization, but not necessarily accepted, that comes below.
1511                    ;;
1512esac
1513
1514else
1515
1516# Here we handle the default operating systems that come with various machines.
1517# The value should be what the vendor currently ships out the door with their
1518# machine or put another way, the most popular os provided with the machine.
1519
1520# Note that if you're going to try to match "-MANUFACTURER" here (say,
1521# "-sun"), then you have to tell the case statement up towards the top
1522# that MANUFACTURER isn't an operating system.  Otherwise, code above
1523# will signal an error saying that MANUFACTURER isn't an operating
1524# system, and we'll never get to this point.
1525
1526kernel=
1527case $cpu-$vendor in
1528          score-*)
1529                    os=elf
1530                    ;;
1531          spu-*)
1532                    os=elf
1533                    ;;
1534          *-acorn)
1535                    os=riscix1.2
1536                    ;;
1537          arm*-rebel)
1538                    kernel=linux
1539                    os=gnu
1540                    ;;
1541          arm*-semi)
1542                    os=aout
1543                    ;;
1544          c4x-* | tic4x-*)
1545                    os=coff
1546                    ;;
1547          c8051-*)
1548                    os=elf
1549                    ;;
1550          clipper-intergraph)
1551                    os=clix
1552                    ;;
1553          hexagon-*)
1554                    os=elf
1555                    ;;
1556          tic54x-*)
1557                    os=coff
1558                    ;;
1559          tic55x-*)
1560                    os=coff
1561                    ;;
1562          tic6x-*)
1563                    os=coff
1564                    ;;
1565          # This must come before the *-dec entry.
1566          pdp10-*)
1567                    os=tops20
1568                    ;;
1569          pdp11-*)
1570                    os=none
1571                    ;;
1572          *-dec | vax-*)
1573                    os=ultrix4.2
1574                    ;;
1575          m68*-apollo)
1576                    os=domain
1577                    ;;
1578          i386-sun)
1579                    os=sunos4.0.2
1580                    ;;
1581          m68000-sun)
1582                    os=sunos3
1583                    ;;
1584          m68*-cisco)
1585                    os=aout
1586                    ;;
1587          mep-*)
1588                    os=elf
1589                    ;;
1590          mips*-cisco)
1591                    os=elf
1592                    ;;
1593          mips*-*)
1594                    os=elf
1595                    ;;
1596          or32-*)
1597                    os=coff
1598                    ;;
1599          *-tti)    # must be before sparc entry or we get the wrong os.
1600                    os=sysv3
1601                    ;;
1602          sparc-* | *-sun)
1603                    os=sunos4.1.1
1604                    ;;
1605          pru-*)
1606                    os=elf
1607                    ;;
1608          *-be)
1609                    os=beos
1610                    ;;
1611          *-ibm)
1612                    os=aix
1613                    ;;
1614          *-knuth)
1615                    os=mmixware
1616                    ;;
1617          *-wec)
1618                    os=proelf
1619                    ;;
1620          *-winbond)
1621                    os=proelf
1622                    ;;
1623          *-oki)
1624                    os=proelf
1625                    ;;
1626          *-hp)
1627                    os=hpux
1628                    ;;
1629          *-hitachi)
1630                    os=hiux
1631                    ;;
1632          i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1633                    os=sysv
1634                    ;;
1635          *-cbm)
1636                    os=amigaos
1637                    ;;
1638          *-dg)
1639                    os=dgux
1640                    ;;
1641          *-dolphin)
1642                    os=sysv3
1643                    ;;
1644          m68k-ccur)
1645                    os=rtu
1646                    ;;
1647          m88k-omron*)
1648                    os=luna
1649                    ;;
1650          *-next)
1651                    os=nextstep
1652                    ;;
1653          *-sequent)
1654                    os=ptx
1655                    ;;
1656          *-crds)
1657                    os=unos
1658                    ;;
1659          *-ns)
1660                    os=genix
1661                    ;;
1662          i370-*)
1663                    os=mvs
1664                    ;;
1665          *-gould)
1666                    os=sysv
1667                    ;;
1668          *-highlevel)
1669                    os=bsd
1670                    ;;
1671          *-encore)
1672                    os=bsd
1673                    ;;
1674          *-sgi)
1675                    os=irix
1676                    ;;
1677          *-siemens)
1678                    os=sysv4
1679                    ;;
1680          *-masscomp)
1681                    os=rtu
1682                    ;;
1683          f30[01]-fujitsu | f700-fujitsu)
1684                    os=uxpv
1685                    ;;
1686          *-rom68k)
1687                    os=coff
1688                    ;;
1689          *-*bug)
1690                    os=coff
1691                    ;;
1692          *-apple)
1693                    os=macos
1694                    ;;
1695          *-atari*)
1696                    os=mint
1697                    ;;
1698          *-wrs)
1699                    os=vxworks
1700                    ;;
1701          *)
1702                    os=none
1703                    ;;
1704esac
1705
1706fi
1707
1708# Now, validate our (potentially fixed-up) OS.
1709case $os in
1710          # Sometimes we do "kernel-libc", so those need to count as OSes.
1711          musl* | newlib* | relibc* | uclibc*)
1712                    ;;
1713          # Likewise for "kernel-abi"
1714          eabi* | gnueabi*)
1715                    ;;
1716          # VxWorks passes extra cpu info in the 4th filed.
1717          simlinux | simwindows | spe)
1718                    ;;
1719          # Now accept the basic system types.
1720          # The portable systems comes first.
1721          # Each alternative MUST end in a * to match a version number.
1722          gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1723               | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1724               | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1725               | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1726               | hiux* | abug | nacl* | netware* | windows* \
1727               | os9* | macos* | osx* | ios* \
1728               | mpw* | magic* | mmixware* | mon960* | lnews* \
1729               | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1730               | aos* | aros* | cloudabi* | sortix* | twizzler* \
1731               | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1732               | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1733               | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1734               | bitrig* | openbsd* | secbsd* | solidbsd* | libertybsd* | os108* \
1735               | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1736               | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
1737               | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
1738               | udi* | lites* | ieee* | go32* | aux* | hcos* \
1739               | chorusrdb* | cegcc* | glidix* | serenity* \
1740               | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
1741               | midipix* | mingw32* | mingw64* | mint* \
1742               | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1743               | interix* | uwin* | mks* | rhapsody* | darwin* \
1744               | openstep* | oskit* | conix* | pw32* | nonstopux* \
1745               | storm-chaos* | tops10* | tenex* | tops20* | its* \
1746               | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1747               | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1748               | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1749               | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1750               | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1751               | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1752               | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
1753               | fiwix* )
1754                    ;;
1755          # This one is extra strict with allowed versions
1756          sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1757                    # Don't forget version if it is 3.2v4 or newer.
1758                    ;;
1759          none)
1760                    ;;
1761          *)
1762                    echo Invalid configuration \`"$1"\': OS \`"$os"\' not recognized 1>&2
1763                    exit 1
1764                    ;;
1765esac
1766
1767# As a final step for OS-related things, validate the OS-kernel combination
1768# (given a valid OS), if there is a kernel.
1769case $kernel-$os in
1770          linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* \
1771                       | linux-musl* | linux-relibc* | linux-uclibc* )
1772                    ;;
1773          uclinux-uclibc* )
1774                    ;;
1775          -dietlibc* | -newlib* | -musl* | -relibc* | -uclibc* )
1776                    # These are just libc implementations, not actual OSes, and thus
1777                    # require a kernel.
1778                    echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
1779                    exit 1
1780                    ;;
1781          kfreebsd*-gnu* | kopensolaris*-gnu*)
1782                    ;;
1783          vxworks-simlinux | vxworks-simwindows | vxworks-spe)
1784                    ;;
1785          nto-qnx*)
1786                    ;;
1787          os2-emx)
1788                    ;;
1789          *-eabi* | *-gnueabi*)
1790                    ;;
1791          -*)
1792                    # Blank kernel with real OS is always fine.
1793                    ;;
1794          *-*)
1795                    echo "Invalid configuration \`$1': Kernel \`$kernel' not known to work with OS \`$os'." 1>&2
1796                    exit 1
1797                    ;;
1798esac
1799
1800# Here we handle the case where we know the os, and the CPU type, but not the
1801# manufacturer.  We pick the logical manufacturer.
1802case $vendor in
1803          unknown)
1804                    case $cpu-$os in
1805                              *-riscix*)
1806                                        vendor=acorn
1807                                        ;;
1808                              *-sunos*)
1809                                        vendor=sun
1810                                        ;;
1811                              *-cnk* | *-aix*)
1812                                        vendor=ibm
1813                                        ;;
1814                              *-beos*)
1815                                        vendor=be
1816                                        ;;
1817                              *-hpux*)
1818                                        vendor=hp
1819                                        ;;
1820                              *-mpeix*)
1821                                        vendor=hp
1822                                        ;;
1823                              *-hiux*)
1824                                        vendor=hitachi
1825                                        ;;
1826                              *-unos*)
1827                                        vendor=crds
1828                                        ;;
1829                              *-dgux*)
1830                                        vendor=dg
1831                                        ;;
1832                              *-luna*)
1833                                        vendor=omron
1834                                        ;;
1835                              *-genix*)
1836                                        vendor=ns
1837                                        ;;
1838                              *-clix*)
1839                                        vendor=intergraph
1840                                        ;;
1841                              *-mvs* | *-opened*)
1842                                        vendor=ibm
1843                                        ;;
1844                              *-os400*)
1845                                        vendor=ibm
1846                                        ;;
1847                              s390-* | s390x-*)
1848                                        vendor=ibm
1849                                        ;;
1850                              *-ptx*)
1851                                        vendor=sequent
1852                                        ;;
1853                              *-tpf*)
1854                                        vendor=ibm
1855                                        ;;
1856                              *-vxsim* | *-vxworks* | *-windiss*)
1857                                        vendor=wrs
1858                                        ;;
1859                              *-aux*)
1860                                        vendor=apple
1861                                        ;;
1862                              *-hms*)
1863                                        vendor=hitachi
1864                                        ;;
1865                              *-mpw* | *-macos*)
1866                                        vendor=apple
1867                                        ;;
1868                              *-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1869                                        vendor=atari
1870                                        ;;
1871                              *-vos*)
1872                                        vendor=stratus
1873                                        ;;
1874                    esac
1875                    ;;
1876esac
1877
1878echo "$cpu-$vendor-${kernel:+$kernel-}$os"
1879exit
1880
1881# Local variables:
1882# eval: (add-hook 'before-save-hook 'time-stamp)
1883# time-stamp-start: "timestamp='"
1884# time-stamp-format: "%:y-%02m-%02d"
1885# time-stamp-end: "'"
1886# End:
1887