1#! /bin/sh
2# Configuration validation subroutine script.
3#   Copyright 1992-2020 Free Software Foundation, Inc.
4
5timestamp='2020-10-13'
6
7# This file is free software; you can redistribute it and/or modify it
8# under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 3 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful, but
13# WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15# General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, see <https://www.gnu.org/licenses/>.
19#
20# As a special exception to the GNU General Public License, if you
21# distribute this file as part of a program that contains a
22# configuration script generated by Autoconf, you may include it under
23# the same distribution terms that you use for the rest of that
24# program.  This Exception is an additional permission under section 7
25# of the GNU General Public License, version 3 ("GPLv3").
26
27
28# Please send patches to <config-patches@gnu.org>.
29#
30# Configuration subroutine to validate and canonicalize a configuration type.
31# Supply the specified configuration type as an argument.
32# If it is invalid, we print an error message on stderr and exit with code 1.
33# Otherwise, we print the canonical config type on stdout and succeed.
34
35# You can get the latest version of this script from:
36# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
37
38# This file is supposed to be the same for all GNU packages
39# and recognize all the CPU types, system types and aliases
40# that are meaningful with *any* GNU software.
41# Each package is responsible for reporting which valid configurations
42# it does not support.  The user should be able to distinguish
43# a failure to support a valid configuration from a meaningless
44# configuration.
45
46# The goal of this file is to map all the various variations of a given
47# machine specification into a single specification in the form:
48#         CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
49# or in some cases, the newer four-part form:
50#         CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
51# It is wrong to echo any other type of specification.
52
53me=`echo "$0" | sed -e 's,.*/,,'`
54
55usage="\
56Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
57
58Canonicalize a configuration name.
59
60Options:
61  -h, --help         print this help, then exit
62  -t, --time-stamp   print date of last modification, then exit
63  -v, --version      print version number, then exit
64
65Report bugs and patches to <config-patches@gnu.org>."
66
67version="\
68GNU config.sub ($timestamp)
69
70Copyright 1992-2020 Free Software Foundation, Inc.
71
72This is free software; see the source for copying conditions.  There is NO
73warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
74
75help="
76Try \`$me --help' for more information."
77
78# Parse command line
79while test $# -gt 0 ; do
80  case $1 in
81    --time-stamp | --time* | -t )
82       echo "$timestamp" ; exit ;;
83    --version | -v )
84       echo "$version" ; exit ;;
85    --help | --h* | -h )
86       echo "$usage"; exit ;;
87    -- )     # Stop option processing
88       shift; break ;;
89    - )   # Use stdin as input.
90       break ;;
91    -* )
92       echo "$me: invalid option $1$help" >&2
93       exit 1 ;;
94
95    *local*)
96       # First pass through any local machine types.
97       echo "$1"
98       exit ;;
99
100    * )
101       break ;;
102  esac
103done
104
105case $# in
106 0) echo "$me: missing argument$help" >&2
107    exit 1;;
108 1) ;;
109 *) echo "$me: too many arguments$help" >&2
110    exit 1;;
111esac
112
113# Split fields of configuration type
114# shellcheck disable=SC2162
115IFS="-" read field1 field2 field3 field4 <<EOF
116$1
117EOF
118
119# Separate into logical components for further validation
120case $1 in
121          *-*-*-*-*)
122                    echo Invalid configuration \`"$1"\': more than four components >&2
123                    exit 1
124                    ;;
125          *-*-*-*)
126                    basic_machine=$field1-$field2
127                    basic_os=$field3-$field4
128                    ;;
129          *-*-*)
130                    # Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
131                    # parts
132                    maybe_os=$field2-$field3
133                    case $maybe_os in
134                              nto-qnx* | linux-* | uclinux-uclibc* \
135                              | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
136                              | netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
137                              | storm-chaos* | os2-emx* | rtmk-nova*)
138                                        basic_machine=$field1
139                                        basic_os=$maybe_os
140                                        ;;
141                              android-linux)
142                                        basic_machine=$field1-unknown
143                                        basic_os=linux-android
144                                        ;;
145                              *)
146                                        basic_machine=$field1-$field2
147                                        basic_os=$field3
148                                        ;;
149                    esac
150                    ;;
151          *-*)
152                    # A lone config we happen to match not fitting any pattern
153                    case $field1-$field2 in
154                              decstation-3100)
155                                        basic_machine=mips-dec
156                                        basic_os=
157                                        ;;
158                              *-*)
159                                        # Second component is usually, but not always the OS
160                                        case $field2 in
161                                                  # Prevent following clause from handling this valid os
162                                                  sun*os*)
163                                                            basic_machine=$field1
164                                                            basic_os=$field2
165                                                            ;;
166                                                  # Manufacturers
167                                                  dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
168                                                  | att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
169                                                  | unicom* | ibm* | next | hp | isi* | apollo | altos* \
170                                                  | convergent* | ncr* | news | 32* | 3600* | 3100* \
171                                                  | hitachi* | c[123]* | convex* | sun | crds | omron* | dg \
172                                                  | ultra | tti* | harris | dolphin | highlevel | gould \
173                                                  | cbm | ns | masscomp | apple | axis | knuth | cray \
174                                                  | microblaze* | sim | cisco \
175                                                  | oki | wec | wrs | winbond)
176                                                            basic_machine=$field1-$field2
177                                                            basic_os=
178                                                            ;;
179                                                  *)
180                                                            basic_machine=$field1
181                                                            basic_os=$field2
182                                                            ;;
183                                        esac
184                              ;;
185                    esac
186                    ;;
187          *)
188                    # Convert single-component short-hands not valid as part of
189                    # multi-component configurations.
190                    case $field1 in
191                              386bsd)
192                                        basic_machine=i386-pc
193                                        basic_os=bsd
194                                        ;;
195                              a29khif)
196                                        basic_machine=a29k-amd
197                                        basic_os=udi
198                                        ;;
199                              adobe68k)
200                                        basic_machine=m68010-adobe
201                                        basic_os=scout
202                                        ;;
203                              alliant)
204                                        basic_machine=fx80-alliant
205                                        basic_os=
206                                        ;;
207                              altos | altos3068)
208                                        basic_machine=m68k-altos
209                                        basic_os=
210                                        ;;
211                              am29k)
212                                        basic_machine=a29k-none
213                                        basic_os=bsd
214                                        ;;
215                              amdahl)
216                                        basic_machine=580-amdahl
217                                        basic_os=sysv
218                                        ;;
219                              amiga)
220                                        basic_machine=m68k-unknown
221                                        basic_os=
222                                        ;;
223                              amigaos | amigados)
224                                        basic_machine=m68k-unknown
225                                        basic_os=amigaos
226                                        ;;
227                              amigaunix | amix)
228                                        basic_machine=m68k-unknown
229                                        basic_os=sysv4
230                                        ;;
231                              apollo68)
232                                        basic_machine=m68k-apollo
233                                        basic_os=sysv
234                                        ;;
235                              apollo68bsd)
236                                        basic_machine=m68k-apollo
237                                        basic_os=bsd
238                                        ;;
239                              aros)
240                                        basic_machine=i386-pc
241                                        basic_os=aros
242                                        ;;
243                              aux)
244                                        basic_machine=m68k-apple
245                                        basic_os=aux
246                                        ;;
247                              balance)
248                                        basic_machine=ns32k-sequent
249                                        basic_os=dynix
250                                        ;;
251                              blackfin)
252                                        basic_machine=bfin-unknown
253                                        basic_os=linux
254                                        ;;
255                              cegcc)
256                                        basic_machine=arm-unknown
257                                        basic_os=cegcc
258                                        ;;
259                              convex-c1)
260                                        basic_machine=c1-convex
261                                        basic_os=bsd
262                                        ;;
263                              convex-c2)
264                                        basic_machine=c2-convex
265                                        basic_os=bsd
266                                        ;;
267                              convex-c32)
268                                        basic_machine=c32-convex
269                                        basic_os=bsd
270                                        ;;
271                              convex-c34)
272                                        basic_machine=c34-convex
273                                        basic_os=bsd
274                                        ;;
275                              convex-c38)
276                                        basic_machine=c38-convex
277                                        basic_os=bsd
278                                        ;;
279                              cray)
280                                        basic_machine=j90-cray
281                                        basic_os=unicos
282                                        ;;
283                              crds | unos)
284                                        basic_machine=m68k-crds
285                                        basic_os=
286                                        ;;
287                              da30)
288                                        basic_machine=m68k-da30
289                                        basic_os=
290                                        ;;
291                              decstation | pmax | pmin | dec3100 | decstatn)
292                                        basic_machine=mips-dec
293                                        basic_os=
294                                        ;;
295                              delta88)
296                                        basic_machine=m88k-motorola
297                                        basic_os=sysv3
298                                        ;;
299                              dicos)
300                                        basic_machine=i686-pc
301                                        basic_os=dicos
302                                        ;;
303                              djgpp)
304                                        basic_machine=i586-pc
305                                        basic_os=msdosdjgpp
306                                        ;;
307                              ebmon29k)
308                                        basic_machine=a29k-amd
309                                        basic_os=ebmon
310                                        ;;
311                              es1800 | OSE68k | ose68k | ose | OSE)
312                                        basic_machine=m68k-ericsson
313                                        basic_os=ose
314                                        ;;
315                              gmicro)
316                                        basic_machine=tron-gmicro
317                                        basic_os=sysv
318                                        ;;
319                              go32)
320                                        basic_machine=i386-pc
321                                        basic_os=go32
322                                        ;;
323                              h8300hms)
324                                        basic_machine=h8300-hitachi
325                                        basic_os=hms
326                                        ;;
327                              h8300xray)
328                                        basic_machine=h8300-hitachi
329                                        basic_os=xray
330                                        ;;
331                              h8500hms)
332                                        basic_machine=h8500-hitachi
333                                        basic_os=hms
334                                        ;;
335                              harris)
336                                        basic_machine=m88k-harris
337                                        basic_os=sysv3
338                                        ;;
339                              hp300 | hp300hpux)
340                                        basic_machine=m68k-hp
341                                        basic_os=hpux
342                                        ;;
343                              hp300bsd)
344                                        basic_machine=m68k-hp
345                                        basic_os=bsd
346                                        ;;
347                              hppaosf)
348                                        basic_machine=hppa1.1-hp
349                                        basic_os=osf
350                                        ;;
351                              hppro)
352                                        basic_machine=hppa1.1-hp
353                                        basic_os=proelf
354                                        ;;
355                              i386mach)
356                                        basic_machine=i386-mach
357                                        basic_os=mach
358                                        ;;
359                              isi68 | isi)
360                                        basic_machine=m68k-isi
361                                        basic_os=sysv
362                                        ;;
363                              m68knommu)
364                                        basic_machine=m68k-unknown
365                                        basic_os=linux
366                                        ;;
367                              magnum | m3230)
368                                        basic_machine=mips-mips
369                                        basic_os=sysv
370                                        ;;
371                              merlin)
372                                        basic_machine=ns32k-utek
373                                        basic_os=sysv
374                                        ;;
375                              mingw64)
376                                        basic_machine=x86_64-pc
377                                        basic_os=mingw64
378                                        ;;
379                              mingw32)
380                                        basic_machine=i686-pc
381                                        basic_os=mingw32
382                                        ;;
383                              mingw32ce)
384                                        basic_machine=arm-unknown
385                                        basic_os=mingw32ce
386                                        ;;
387                              monitor)
388                                        basic_machine=m68k-rom68k
389                                        basic_os=coff
390                                        ;;
391                              morphos)
392                                        basic_machine=powerpc-unknown
393                                        basic_os=morphos
394                                        ;;
395                              moxiebox)
396                                        basic_machine=moxie-unknown
397                                        basic_os=moxiebox
398                                        ;;
399                              msdos)
400                                        basic_machine=i386-pc
401                                        basic_os=msdos
402                                        ;;
403                              msys)
404                                        basic_machine=i686-pc
405                                        basic_os=msys
406                                        ;;
407                              mvs)
408                                        basic_machine=i370-ibm
409                                        basic_os=mvs
410                                        ;;
411                              nacl)
412                                        basic_machine=le32-unknown
413                                        basic_os=nacl
414                                        ;;
415                              ncr3000)
416                                        basic_machine=i486-ncr
417                                        basic_os=sysv4
418                                        ;;
419                              netbsd386)
420                                        basic_machine=i386-pc
421                                        basic_os=netbsd
422                                        ;;
423                              netwinder)
424                                        basic_machine=armv4l-rebel
425                                        basic_os=linux
426                                        ;;
427                              news | news700 | news800 | news900)
428                                        basic_machine=m68k-sony
429                                        basic_os=newsos
430                                        ;;
431                              news1000)
432                                        basic_machine=m68030-sony
433                                        basic_os=newsos
434                                        ;;
435                              necv70)
436                                        basic_machine=v70-nec
437                                        basic_os=sysv
438                                        ;;
439                              nh3000)
440                                        basic_machine=m68k-harris
441                                        basic_os=cxux
442                                        ;;
443                              nh[45]000)
444                                        basic_machine=m88k-harris
445                                        basic_os=cxux
446                                        ;;
447                              nindy960)
448                                        basic_machine=i960-intel
449                                        basic_os=nindy
450                                        ;;
451                              mon960)
452                                        basic_machine=i960-intel
453                                        basic_os=mon960
454                                        ;;
455                              nonstopux)
456                                        basic_machine=mips-compaq
457                                        basic_os=nonstopux
458                                        ;;
459                              os400)
460                                        basic_machine=powerpc-ibm
461                                        basic_os=os400
462                                        ;;
463                              OSE68000 | ose68000)
464                                        basic_machine=m68000-ericsson
465                                        basic_os=ose
466                                        ;;
467                              os68k)
468                                        basic_machine=m68k-none
469                                        basic_os=os68k
470                                        ;;
471                              paragon)
472                                        basic_machine=i860-intel
473                                        basic_os=osf
474                                        ;;
475                              parisc)
476                                        basic_machine=hppa-unknown
477                                        basic_os=linux
478                                        ;;
479                              psp)
480                                        basic_machine=mipsallegrexel-sony
481                                        basic_os=psp
482                                        ;;
483                              pw32)
484                                        basic_machine=i586-unknown
485                                        basic_os=pw32
486                                        ;;
487                              rdos | rdos64)
488                                        basic_machine=x86_64-pc
489                                        basic_os=rdos
490                                        ;;
491                              rdos32)
492                                        basic_machine=i386-pc
493                                        basic_os=rdos
494                                        ;;
495                              rom68k)
496                                        basic_machine=m68k-rom68k
497                                        basic_os=coff
498                                        ;;
499                              sa29200)
500                                        basic_machine=a29k-amd
501                                        basic_os=udi
502                                        ;;
503                              sei)
504                                        basic_machine=mips-sei
505                                        basic_os=seiux
506                                        ;;
507                              sequent)
508                                        basic_machine=i386-sequent
509                                        basic_os=
510                                        ;;
511                              sps7)
512                                        basic_machine=m68k-bull
513                                        basic_os=sysv2
514                                        ;;
515                              st2000)
516                                        basic_machine=m68k-tandem
517                                        basic_os=
518                                        ;;
519                              stratus)
520                                        basic_machine=i860-stratus
521                                        basic_os=sysv4
522                                        ;;
523                              sun2)
524                                        basic_machine=m68000-sun
525                                        basic_os=
526                                        ;;
527                              sun2os3)
528                                        basic_machine=m68000-sun
529                                        basic_os=sunos3
530                                        ;;
531                              sun2os4)
532                                        basic_machine=m68000-sun
533                                        basic_os=sunos4
534                                        ;;
535                              sun3)
536                                        basic_machine=m68k-sun
537                                        basic_os=
538                                        ;;
539                              sun3os3)
540                                        basic_machine=m68k-sun
541                                        basic_os=sunos3
542                                        ;;
543                              sun3os4)
544                                        basic_machine=m68k-sun
545                                        basic_os=sunos4
546                                        ;;
547                              sun4)
548                                        basic_machine=sparc-sun
549                                        basic_os=
550                                        ;;
551                              sun4os3)
552                                        basic_machine=sparc-sun
553                                        basic_os=sunos3
554                                        ;;
555                              sun4os4)
556                                        basic_machine=sparc-sun
557                                        basic_os=sunos4
558                                        ;;
559                              sun4sol2)
560                                        basic_machine=sparc-sun
561                                        basic_os=solaris2
562                                        ;;
563                              sun386 | sun386i | roadrunner)
564                                        basic_machine=i386-sun
565                                        basic_os=
566                                        ;;
567                              sv1)
568                                        basic_machine=sv1-cray
569                                        basic_os=unicos
570                                        ;;
571                              symmetry)
572                                        basic_machine=i386-sequent
573                                        basic_os=dynix
574                                        ;;
575                              t3e)
576                                        basic_machine=alphaev5-cray
577                                        basic_os=unicos
578                                        ;;
579                              t90)
580                                        basic_machine=t90-cray
581                                        basic_os=unicos
582                                        ;;
583                              toad1)
584                                        basic_machine=pdp10-xkl
585                                        basic_os=tops20
586                                        ;;
587                              tpf)
588                                        basic_machine=s390x-ibm
589                                        basic_os=tpf
590                                        ;;
591                              udi29k)
592                                        basic_machine=a29k-amd
593                                        basic_os=udi
594                                        ;;
595                              ultra3)
596                                        basic_machine=a29k-nyu
597                                        basic_os=sym1
598                                        ;;
599                              v810 | necv810)
600                                        basic_machine=v810-nec
601                                        basic_os=none
602                                        ;;
603                              vaxv)
604                                        basic_machine=vax-dec
605                                        basic_os=sysv
606                                        ;;
607                              vms)
608                                        basic_machine=vax-dec
609                                        basic_os=vms
610                                        ;;
611                              vsta)
612                                        basic_machine=i386-pc
613                                        basic_os=vsta
614                                        ;;
615                              vxworks960)
616                                        basic_machine=i960-wrs
617                                        basic_os=vxworks
618                                        ;;
619                              vxworks68)
620                                        basic_machine=m68k-wrs
621                                        basic_os=vxworks
622                                        ;;
623                              vxworks29k)
624                                        basic_machine=a29k-wrs
625                                        basic_os=vxworks
626                                        ;;
627                              xbox)
628                                        basic_machine=i686-pc
629                                        basic_os=mingw32
630                                        ;;
631                              ymp)
632                                        basic_machine=ymp-cray
633                                        basic_os=unicos
634                                        ;;
635                              *)
636                                        basic_machine=$1
637                                        basic_os=
638                                        ;;
639                    esac
640                    ;;
641esac
642
643# Decode 1-component or ad-hoc basic machines
644case $basic_machine in
645          # Here we handle the default manufacturer of certain CPU types.  It is in
646          # some cases the only manufacturer, in others, it is the most popular.
647          w89k)
648                    cpu=hppa1.1
649                    vendor=winbond
650                    ;;
651          op50n)
652                    cpu=hppa1.1
653                    vendor=oki
654                    ;;
655          op60c)
656                    cpu=hppa1.1
657                    vendor=oki
658                    ;;
659          ibm*)
660                    cpu=i370
661                    vendor=ibm
662                    ;;
663          orion105)
664                    cpu=clipper
665                    vendor=highlevel
666                    ;;
667          mac | mpw | mac-mpw)
668                    cpu=m68k
669                    vendor=apple
670                    ;;
671          pmac | pmac-mpw)
672                    cpu=powerpc
673                    vendor=apple
674                    ;;
675
676          # Recognize the various machine names and aliases which stand
677          # for a CPU type and a company and sometimes even an OS.
678          3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
679                    cpu=m68000
680                    vendor=att
681                    ;;
682          3b*)
683                    cpu=we32k
684                    vendor=att
685                    ;;
686          bluegene*)
687                    cpu=powerpc
688                    vendor=ibm
689                    basic_os=cnk
690                    ;;
691          decsystem10* | dec10*)
692                    cpu=pdp10
693                    vendor=dec
694                    basic_os=tops10
695                    ;;
696          decsystem20* | dec20*)
697                    cpu=pdp10
698                    vendor=dec
699                    basic_os=tops20
700                    ;;
701          delta | 3300 | motorola-3300 | motorola-delta \
702                | 3300-motorola | delta-motorola)
703                    cpu=m68k
704                    vendor=motorola
705                    ;;
706          dpx2*)
707                    cpu=m68k
708                    vendor=bull
709                    basic_os=sysv3
710                    ;;
711          encore | umax | mmax)
712                    cpu=ns32k
713                    vendor=encore
714                    ;;
715          elxsi)
716                    cpu=elxsi
717                    vendor=elxsi
718                    basic_os=${basic_os:-bsd}
719                    ;;
720          fx2800)
721                    cpu=i860
722                    vendor=alliant
723                    ;;
724          genix)
725                    cpu=ns32k
726                    vendor=ns
727                    ;;
728          h3050r* | hiux*)
729                    cpu=hppa1.1
730                    vendor=hitachi
731                    basic_os=hiuxwe2
732                    ;;
733          hp3k9[0-9][0-9] | hp9[0-9][0-9])
734                    cpu=hppa1.0
735                    vendor=hp
736                    ;;
737          hp9k2[0-9][0-9] | hp9k31[0-9])
738                    cpu=m68000
739                    vendor=hp
740                    ;;
741          hp9k3[2-9][0-9])
742                    cpu=m68k
743                    vendor=hp
744                    ;;
745          hp9k6[0-9][0-9] | hp6[0-9][0-9])
746                    cpu=hppa1.0
747                    vendor=hp
748                    ;;
749          hp9k7[0-79][0-9] | hp7[0-79][0-9])
750                    cpu=hppa1.1
751                    vendor=hp
752                    ;;
753          hp9k78[0-9] | hp78[0-9])
754                    # FIXME: really hppa2.0-hp
755                    cpu=hppa1.1
756                    vendor=hp
757                    ;;
758          hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
759                    # FIXME: really hppa2.0-hp
760                    cpu=hppa1.1
761                    vendor=hp
762                    ;;
763          hp9k8[0-9][13679] | hp8[0-9][13679])
764                    cpu=hppa1.1
765                    vendor=hp
766                    ;;
767          hp9k8[0-9][0-9] | hp8[0-9][0-9])
768                    cpu=hppa1.0
769                    vendor=hp
770                    ;;
771          i*86v32)
772                    cpu=`echo "$1" | sed -e 's/86.*/86/'`
773                    vendor=pc
774                    basic_os=sysv32
775                    ;;
776          i*86v4*)
777                    cpu=`echo "$1" | sed -e 's/86.*/86/'`
778                    vendor=pc
779                    basic_os=sysv4
780                    ;;
781          i*86v)
782                    cpu=`echo "$1" | sed -e 's/86.*/86/'`
783                    vendor=pc
784                    basic_os=sysv
785                    ;;
786          i*86sol2)
787                    cpu=`echo "$1" | sed -e 's/86.*/86/'`
788                    vendor=pc
789                    basic_os=solaris2
790                    ;;
791          j90 | j90-cray)
792                    cpu=j90
793                    vendor=cray
794                    basic_os=${basic_os:-unicos}
795                    ;;
796          iris | iris4d)
797                    cpu=mips
798                    vendor=sgi
799                    case $basic_os in
800                        irix*)
801                              ;;
802                        *)
803                              basic_os=irix4
804                              ;;
805                    esac
806                    ;;
807          miniframe)
808                    cpu=m68000
809                    vendor=convergent
810                    ;;
811          *mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
812                    cpu=m68k
813                    vendor=atari
814                    basic_os=mint
815                    ;;
816          news-3600 | risc-news)
817                    cpu=mips
818                    vendor=sony
819                    basic_os=newsos
820                    ;;
821          next | m*-next)
822                    cpu=m68k
823                    vendor=next
824                    case $basic_os in
825                        openstep*)
826                            ;;
827                        nextstep*)
828                              ;;
829                        ns2*)
830                          basic_os=nextstep2
831                              ;;
832                        *)
833                          basic_os=nextstep3
834                              ;;
835                    esac
836                    ;;
837          np1)
838                    cpu=np1
839                    vendor=gould
840                    ;;
841          op50n-* | op60c-*)
842                    cpu=hppa1.1
843                    vendor=oki
844                    basic_os=proelf
845                    ;;
846          pa-hitachi)
847                    cpu=hppa1.1
848                    vendor=hitachi
849                    basic_os=hiuxwe2
850                    ;;
851          pbd)
852                    cpu=sparc
853                    vendor=tti
854                    ;;
855          pbb)
856                    cpu=m68k
857                    vendor=tti
858                    ;;
859          pc532)
860                    cpu=ns32k
861                    vendor=pc532
862                    ;;
863          pn)
864                    cpu=pn
865                    vendor=gould
866                    ;;
867          power)
868                    cpu=power
869                    vendor=ibm
870                    ;;
871          ps2)
872                    cpu=i386
873                    vendor=ibm
874                    ;;
875          rm[46]00)
876                    cpu=mips
877                    vendor=siemens
878                    ;;
879          rtpc | rtpc-*)
880                    cpu=romp
881                    vendor=ibm
882                    ;;
883          sde)
884                    cpu=mipsisa32
885                    vendor=sde
886                    basic_os=${basic_os:-elf}
887                    ;;
888          simso-wrs)
889                    cpu=sparclite
890                    vendor=wrs
891                    basic_os=vxworks
892                    ;;
893          tower | tower-32)
894                    cpu=m68k
895                    vendor=ncr
896                    ;;
897          vpp*|vx|vx-*)
898                    cpu=f301
899                    vendor=fujitsu
900                    ;;
901          w65)
902                    cpu=w65
903                    vendor=wdc
904                    ;;
905          w89k-*)
906                    cpu=hppa1.1
907                    vendor=winbond
908                    basic_os=proelf
909                    ;;
910          none)
911                    cpu=none
912                    vendor=none
913                    ;;
914          leon|leon[3-9])
915                    cpu=sparc
916                    vendor=$basic_machine
917                    ;;
918          leon-*|leon[3-9]-*)
919                    cpu=sparc
920                    vendor=`echo "$basic_machine" | sed 's/-.*//'`
921                    ;;
922
923          *-*)
924                    # shellcheck disable=SC2162
925                    IFS="-" read cpu vendor <<EOF
926$basic_machine
927EOF
928                    ;;
929          # We use `pc' rather than `unknown'
930          # because (1) that's what they normally are, and
931          # (2) the word "unknown" tends to confuse beginning users.
932          i*86 | x86_64)
933                    cpu=$basic_machine
934                    vendor=pc
935                    ;;
936          # These rules are duplicated from below for sake of the special case above;
937          # i.e. things that normalized to x86 arches should also default to "pc"
938          pc98)
939                    cpu=i386
940                    vendor=pc
941                    ;;
942          x64 | amd64)
943                    cpu=x86_64
944                    vendor=pc
945                    ;;
946          # Recognize the basic CPU types without company name.
947          *)
948                    cpu=$basic_machine
949                    vendor=unknown
950                    ;;
951esac
952
953unset -v basic_machine
954
955# Decode basic machines in the full and proper CPU-Company form.
956case $cpu-$vendor in
957          # Here we handle the default manufacturer of certain CPU types in canonical form. It is in
958          # some cases the only manufacturer, in others, it is the most popular.
959          craynv-unknown)
960                    vendor=cray
961                    basic_os=${basic_os:-unicosmp}
962                    ;;
963          c90-unknown | c90-cray)
964                    vendor=cray
965                    basic_os=${Basic_os:-unicos}
966                    ;;
967          fx80-unknown)
968                    vendor=alliant
969                    ;;
970          romp-unknown)
971                    vendor=ibm
972                    ;;
973          mmix-unknown)
974                    vendor=knuth
975                    ;;
976          microblaze-unknown | microblazeel-unknown)
977                    vendor=xilinx
978                    ;;
979          rs6000-unknown)
980                    vendor=ibm
981                    ;;
982          vax-unknown)
983                    vendor=dec
984                    ;;
985          pdp11-unknown)
986                    vendor=dec
987                    ;;
988          we32k-unknown)
989                    vendor=att
990                    ;;
991          cydra-unknown)
992                    vendor=cydrome
993                    ;;
994          i370-ibm*)
995                    vendor=ibm
996                    ;;
997          orion-unknown)
998                    vendor=highlevel
999                    ;;
1000          xps-unknown | xps100-unknown)
1001                    cpu=xps100
1002                    vendor=honeywell
1003                    ;;
1004
1005          # Here we normalize CPU types with a missing or matching vendor
1006          dpx20-unknown | dpx20-bull)
1007                    cpu=rs6000
1008                    vendor=bull
1009                    basic_os=${basic_os:-bosx}
1010                    ;;
1011
1012          # Here we normalize CPU types irrespective of the vendor
1013          amd64-*)
1014                    cpu=x86_64
1015                    ;;
1016          blackfin-*)
1017                    cpu=bfin
1018                    basic_os=linux
1019                    ;;
1020          c54x-*)
1021                    cpu=tic54x
1022                    ;;
1023          c55x-*)
1024                    cpu=tic55x
1025                    ;;
1026          c6x-*)
1027                    cpu=tic6x
1028                    ;;
1029          e500v[12]-*)
1030                    cpu=powerpc
1031                    basic_os=${basic_os}"spe"
1032                    ;;
1033          mips3*-*)
1034                    cpu=mips64
1035                    ;;
1036          ms1-*)
1037                    cpu=mt
1038                    ;;
1039          m68knommu-*)
1040                    cpu=m68k
1041                    basic_os=linux
1042                    ;;
1043          m9s12z-* | m68hcs12z-* | hcs12z-* | s12z-*)
1044                    cpu=s12z
1045                    ;;
1046          openrisc-*)
1047                    cpu=or32
1048                    ;;
1049          parisc-*)
1050                    cpu=hppa
1051                    basic_os=linux
1052                    ;;
1053          pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
1054                    cpu=i586
1055                    ;;
1056          pentiumpro-* | p6-* | 6x86-* | athlon-* | athalon_*-*)
1057                    cpu=i686
1058                    ;;
1059          pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
1060                    cpu=i686
1061                    ;;
1062          pentium4-*)
1063                    cpu=i786
1064                    ;;
1065          pc98-*)
1066                    cpu=i386
1067                    ;;
1068          ppc-* | ppcbe-*)
1069                    cpu=powerpc
1070                    ;;
1071          ppcle-* | powerpclittle-*)
1072                    cpu=powerpcle
1073                    ;;
1074          ppc64-*)
1075                    cpu=powerpc64
1076                    ;;
1077          ppc64le-* | powerpc64little-*)
1078                    cpu=powerpc64le
1079                    ;;
1080          sb1-*)
1081                    cpu=mipsisa64sb1
1082                    ;;
1083          sb1el-*)
1084                    cpu=mipsisa64sb1el
1085                    ;;
1086          sh5e[lb]-*)
1087                    cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'`
1088                    ;;
1089          spur-*)
1090                    cpu=spur
1091                    ;;
1092          strongarm-* | thumb-*)
1093                    cpu=arm
1094                    ;;
1095          tx39-*)
1096                    cpu=mipstx39
1097                    ;;
1098          tx39el-*)
1099                    cpu=mipstx39el
1100                    ;;
1101          x64-*)
1102                    cpu=x86_64
1103                    ;;
1104          xscale-* | xscalee[bl]-*)
1105                    cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
1106                    ;;
1107          arm64-*)
1108                    cpu=aarch64
1109                    ;;
1110
1111          # Recognize the canonical CPU Types that limit and/or modify the
1112          # company names they are paired with.
1113          cr16-*)
1114                    basic_os=${basic_os:-elf}
1115                    ;;
1116          crisv32-* | etraxfs*-*)
1117                    cpu=crisv32
1118                    vendor=axis
1119                    ;;
1120          cris-* | etrax*-*)
1121                    cpu=cris
1122                    vendor=axis
1123                    ;;
1124          crx-*)
1125                    basic_os=${basic_os:-elf}
1126                    ;;
1127          neo-tandem)
1128                    cpu=neo
1129                    vendor=tandem
1130                    ;;
1131          nse-tandem)
1132                    cpu=nse
1133                    vendor=tandem
1134                    ;;
1135          nsr-tandem)
1136                    cpu=nsr
1137                    vendor=tandem
1138                    ;;
1139          nsv-tandem)
1140                    cpu=nsv
1141                    vendor=tandem
1142                    ;;
1143          nsx-tandem)
1144                    cpu=nsx
1145                    vendor=tandem
1146                    ;;
1147          mipsallegrexel-sony)
1148                    cpu=mipsallegrexel
1149                    vendor=sony
1150                    ;;
1151          tile*-*)
1152                    basic_os=${basic_os:-linux-gnu}
1153                    ;;
1154
1155          *)
1156                    # Recognize the canonical CPU types that are allowed with any
1157                    # company name.
1158                    case $cpu in
1159                              1750a | 580 \
1160                              | a29k \
1161                              | aarch64 | aarch64_be \
1162                              | abacus \
1163                              | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
1164                              | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
1165                              | alphapca5[67] | alpha64pca5[67] \
1166                              | am33_2.0 \
1167                              | amdgcn \
1168                              | arc | arceb \
1169                              | arm | arm[lb]e | arme[lb] | armv* \
1170                              | avr | avr32 \
1171                              | asmjs \
1172                              | ba \
1173                              | be32 | be64 \
1174                              | bfin | bpf | bs2000 \
1175                              | c[123]* | c30 | [cjt]90 | c4x \
1176                              | c8051 | clipper | craynv | csky | cydra \
1177                              | d10v | d30v | dlx | dsp16xx \
1178                              | e2k | elxsi | epiphany \
1179                              | f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
1180                              | h8300 | h8500 \
1181                              | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
1182                              | hexagon \
1183                              | i370 | i*86 | i860 | i960 | ia16 | ia64 \
1184                              | ip2k | iq2000 \
1185                              | k1om \
1186                              | le32 | le64 \
1187                              | lm32 \
1188                              | m32c | m32r | m32rle \
1189                              | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
1190                              | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
1191                              | m88110 | m88k | maxq | mb | mcore | mep | metag \
1192                              | microblaze | microblazeel \
1193                              | mips | mipsbe | mipseb | mipsel | mipsle \
1194                              | mips16 \
1195                              | mips64 | mips64eb | mips64el \
1196                              | mipsn64 | mipsn64eb | mipsn64el \
1197                              | mips64octeon | mips64octeonel \
1198                              | mips64orion | mips64orionel \
1199                              | mips64r5900 | mips64r5900el \
1200                              | mips64vr | mips64vrel \
1201                              | mips64vr4100 | mips64vr4100el \
1202                              | mips64vr4300 | mips64vr4300el \
1203                              | mips64vr5000 | mips64vr5000el \
1204                              | mips64vr5900 | mips64vr5900el \
1205                              | mipsisa32 | mipsisa32el \
1206                              | mipsisa32r2 | mipsisa32r2el \
1207                              | mipsisa32r6 | mipsisa32r6el \
1208                              | mipsisa64 | mipsisa64el \
1209                              | mipsisa64r2 | mipsisa64r2el \
1210                              | mipsisa64r6 | mipsisa64r6el \
1211                              | mipsisa64sb1 | mipsisa64sb1el \
1212                              | mipsisa64sr71k | mipsisa64sr71kel \
1213                              | mipsr5900 | mipsr5900el \
1214                              | mipstx39 | mipstx39el \
1215                              | mmix \
1216                              | mn10200 | mn10300 \
1217                              | moxie \
1218                              | mt \
1219                              | msp430 \
1220                              | nds32 | nds32le | nds32be \
1221                              | nfp \
1222                              | nios | nios2 | nios2eb | nios2el \
1223                              | none | np1 | ns16k | ns32k | nvptx \
1224                              | open8 \
1225                              | or1k* \
1226                              | or32 \
1227                              | orion \
1228                              | picochip \
1229                              | pdp10 | pdp11 | pj | pjl | pn | power \
1230                              | powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1231                              | pru \
1232                              | pyramid \
1233                              | riscv | riscv32 | riscv64 \
1234                              | rl78 | romp | rs6000 | rx \
1235                              | s390 | s390x \
1236                              | score \
1237                              | sh | shl \
1238                              | sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1239                              | sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1240                              | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1241                              | sparclite \
1242                              | sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1243                              | spu \
1244                              | tahoe \
1245                              | tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1246                              | tron \
1247                              | ubicom32 \
1248                              | v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1249                              | vax \
1250                              | visium \
1251                              | w65 \
1252                              | wasm32 | wasm64 \
1253                              | we32k \
1254                              | x86 | x86_64 | xc16x | xgate | xps100 \
1255                              | xstormy16 | xtensa* \
1256                              | ymp \
1257                              | z8k | z80)
1258                                        ;;
1259
1260                              *)
1261                                        echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
1262                                        exit 1
1263                                        ;;
1264                    esac
1265                    ;;
1266esac
1267
1268# Here we canonicalize certain aliases for manufacturers.
1269case $vendor in
1270          digital*)
1271                    vendor=dec
1272                    ;;
1273          commodore*)
1274                    vendor=cbm
1275                    ;;
1276          *)
1277                    ;;
1278esac
1279
1280# Decode manufacturer-specific aliases for certain operating systems.
1281
1282if test x$basic_os != x
1283then
1284
1285# First recognize some ad-hoc caes, or perhaps split kernel-os, or else just
1286# set os.
1287case $basic_os in
1288          gnu/linux*)
1289                    kernel=linux
1290                    os=`echo $basic_os | sed -e 's|gnu/linux|gnu|'`
1291                    ;;
1292          os2-emx)
1293                    kernel=os2
1294                    os=`echo $basic_os | sed -e 's|os2-emx|emx|'`
1295                    ;;
1296          nto-qnx*)
1297                    kernel=nto
1298                    os=`echo $basic_os | sed -e 's|nto-qnx|qnx|'`
1299                    ;;
1300          *-*)
1301                    # shellcheck disable=SC2162
1302                    IFS="-" read kernel os <<EOF
1303$basic_os
1304EOF
1305                    ;;
1306          # Default OS when just kernel was specified
1307          nto*)
1308                    kernel=nto
1309                    os=`echo $basic_os | sed -e 's|nto|qnx|'`
1310                    ;;
1311          linux*)
1312                    kernel=linux
1313                    os=`echo $basic_os | sed -e 's|linux|gnu|'`
1314                    ;;
1315          *)
1316                    kernel=
1317                    os=$basic_os
1318                    ;;
1319esac
1320
1321# Now, normalize the OS (knowing we just have one component, it's not a kernel,
1322# etc.)
1323case $os in
1324          # First match some system type aliases that might get confused
1325          # with valid system types.
1326          # solaris* is a basic system type, with this one exception.
1327          auroraux)
1328                    os=auroraux
1329                    ;;
1330          bluegene*)
1331                    os=cnk
1332                    ;;
1333          solaris1 | solaris1.*)
1334                    os=`echo $os | sed -e 's|solaris1|sunos4|'`
1335                    ;;
1336          solaris)
1337                    os=solaris2
1338                    ;;
1339          unixware*)
1340                    os=sysv4.2uw
1341                    ;;
1342          # es1800 is here to avoid being matched by es* (a different OS)
1343          es1800*)
1344                    os=ose
1345                    ;;
1346          # Some version numbers need modification
1347          chorusos*)
1348                    os=chorusos
1349                    ;;
1350          isc)
1351                    os=isc2.2
1352                    ;;
1353          sco6)
1354                    os=sco5v6
1355                    ;;
1356          sco5)
1357                    os=sco3.2v5
1358                    ;;
1359          sco4)
1360                    os=sco3.2v4
1361                    ;;
1362          sco3.2.[4-9]*)
1363                    os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
1364                    ;;
1365          sco*v* | scout)
1366                    # Don't match below
1367                    ;;
1368          sco*)
1369                    os=sco3.2v2
1370                    ;;
1371          psos*)
1372                    os=psos
1373                    ;;
1374          qnx*)
1375                    os=qnx
1376                    ;;
1377          hiux*)
1378                    os=hiuxwe2
1379                    ;;
1380          lynx*178)
1381                    os=lynxos178
1382                    ;;
1383          lynx*5)
1384                    os=lynxos5
1385                    ;;
1386          lynxos*)
1387                    # don't get caught up in next wildcard
1388                    ;;
1389          lynx*)
1390                    os=lynxos
1391                    ;;
1392          mac[0-9]*)
1393                    os=`echo "$os" | sed -e 's|mac|macos|'`
1394                    ;;
1395          opened*)
1396                    os=openedition
1397                    ;;
1398          os400*)
1399                    os=os400
1400                    ;;
1401          sunos5*)
1402                    os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
1403                    ;;
1404          sunos6*)
1405                    os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
1406                    ;;
1407          wince*)
1408                    os=wince
1409                    ;;
1410          utek*)
1411                    os=bsd
1412                    ;;
1413          dynix*)
1414                    os=bsd
1415                    ;;
1416          acis*)
1417                    os=aos
1418                    ;;
1419          atheos*)
1420                    os=atheos
1421                    ;;
1422          syllable*)
1423                    os=syllable
1424                    ;;
1425          386bsd)
1426                    os=bsd
1427                    ;;
1428          ctix* | uts*)
1429                    os=sysv
1430                    ;;
1431          nova*)
1432                    os=rtmk-nova
1433                    ;;
1434          ns2)
1435                    os=nextstep2
1436                    ;;
1437          # Preserve the version number of sinix5.
1438          sinix5.*)
1439                    os=`echo $os | sed -e 's|sinix|sysv|'`
1440                    ;;
1441          sinix*)
1442                    os=sysv4
1443                    ;;
1444          tpf*)
1445                    os=tpf
1446                    ;;
1447          triton*)
1448                    os=sysv3
1449                    ;;
1450          oss*)
1451                    os=sysv3
1452                    ;;
1453          svr4*)
1454                    os=sysv4
1455                    ;;
1456          svr3)
1457                    os=sysv3
1458                    ;;
1459          sysvr4)
1460                    os=sysv4
1461                    ;;
1462          ose*)
1463                    os=ose
1464                    ;;
1465          *mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1466                    os=mint
1467                    ;;
1468          dicos*)
1469                    os=dicos
1470                    ;;
1471          pikeos*)
1472                    # Until real need of OS specific support for
1473                    # particular features comes up, bare metal
1474                    # configurations are quite functional.
1475                    case $cpu in
1476                        arm*)
1477                              os=eabi
1478                              ;;
1479                        *)
1480                              os=elf
1481                              ;;
1482                    esac
1483                    ;;
1484          *)
1485                    # No normalization, but not necessarily accepted, that comes below.
1486                    ;;
1487esac
1488
1489else
1490
1491# Here we handle the default operating systems that come with various machines.
1492# The value should be what the vendor currently ships out the door with their
1493# machine or put another way, the most popular os provided with the machine.
1494
1495# Note that if you're going to try to match "-MANUFACTURER" here (say,
1496# "-sun"), then you have to tell the case statement up towards the top
1497# that MANUFACTURER isn't an operating system.  Otherwise, code above
1498# will signal an error saying that MANUFACTURER isn't an operating
1499# system, and we'll never get to this point.
1500
1501kernel=
1502case $cpu-$vendor in
1503          score-*)
1504                    os=elf
1505                    ;;
1506          spu-*)
1507                    os=elf
1508                    ;;
1509          *-acorn)
1510                    os=riscix1.2
1511                    ;;
1512          arm*-rebel)
1513                    kernel=linux
1514                    os=gnu
1515                    ;;
1516          arm*-semi)
1517                    os=aout
1518                    ;;
1519          c4x-* | tic4x-*)
1520                    os=coff
1521                    ;;
1522          c8051-*)
1523                    os=elf
1524                    ;;
1525          clipper-intergraph)
1526                    os=clix
1527                    ;;
1528          hexagon-*)
1529                    os=elf
1530                    ;;
1531          tic54x-*)
1532                    os=coff
1533                    ;;
1534          tic55x-*)
1535                    os=coff
1536                    ;;
1537          tic6x-*)
1538                    os=coff
1539                    ;;
1540          # This must come before the *-dec entry.
1541          pdp10-*)
1542                    os=tops20
1543                    ;;
1544          pdp11-*)
1545                    os=none
1546                    ;;
1547          *-dec | vax-*)
1548                    os=ultrix4.2
1549                    ;;
1550          m68*-apollo)
1551                    os=domain
1552                    ;;
1553          i386-sun)
1554                    os=sunos4.0.2
1555                    ;;
1556          m68000-sun)
1557                    os=sunos3
1558                    ;;
1559          m68*-cisco)
1560                    os=aout
1561                    ;;
1562          mep-*)
1563                    os=elf
1564                    ;;
1565          mips*-cisco)
1566                    os=elf
1567                    ;;
1568          mips*-*)
1569                    os=elf
1570                    ;;
1571          or32-*)
1572                    os=coff
1573                    ;;
1574          *-tti)    # must be before sparc entry or we get the wrong os.
1575                    os=sysv3
1576                    ;;
1577          sparc-* | *-sun)
1578                    os=sunos4.1.1
1579                    ;;
1580          pru-*)
1581                    os=elf
1582                    ;;
1583          *-be)
1584                    os=beos
1585                    ;;
1586          *-ibm)
1587                    os=aix
1588                    ;;
1589          *-knuth)
1590                    os=mmixware
1591                    ;;
1592          *-wec)
1593                    os=proelf
1594                    ;;
1595          *-winbond)
1596                    os=proelf
1597                    ;;
1598          *-oki)
1599                    os=proelf
1600                    ;;
1601          *-hp)
1602                    os=hpux
1603                    ;;
1604          *-hitachi)
1605                    os=hiux
1606                    ;;
1607          i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1608                    os=sysv
1609                    ;;
1610          *-cbm)
1611                    os=amigaos
1612                    ;;
1613          *-dg)
1614                    os=dgux
1615                    ;;
1616          *-dolphin)
1617                    os=sysv3
1618                    ;;
1619          m68k-ccur)
1620                    os=rtu
1621                    ;;
1622          m88k-omron*)
1623                    os=luna
1624                    ;;
1625          *-next)
1626                    os=nextstep
1627                    ;;
1628          *-sequent)
1629                    os=ptx
1630                    ;;
1631          *-crds)
1632                    os=unos
1633                    ;;
1634          *-ns)
1635                    os=genix
1636                    ;;
1637          i370-*)
1638                    os=mvs
1639                    ;;
1640          *-gould)
1641                    os=sysv
1642                    ;;
1643          *-highlevel)
1644                    os=bsd
1645                    ;;
1646          *-encore)
1647                    os=bsd
1648                    ;;
1649          *-sgi)
1650                    os=irix
1651                    ;;
1652          *-siemens)
1653                    os=sysv4
1654                    ;;
1655          *-masscomp)
1656                    os=rtu
1657                    ;;
1658          f30[01]-fujitsu | f700-fujitsu)
1659                    os=uxpv
1660                    ;;
1661          *-rom68k)
1662                    os=coff
1663                    ;;
1664          *-*bug)
1665                    os=coff
1666                    ;;
1667          *-apple)
1668                    os=macos
1669                    ;;
1670          *-atari*)
1671                    os=mint
1672                    ;;
1673          *-wrs)
1674                    os=vxworks
1675                    ;;
1676          *)
1677                    os=none
1678                    ;;
1679esac
1680
1681fi
1682
1683# Now, validate our (potentially fixed-up) OS.
1684case $os in
1685          # Sometimes we do "kernel-abi", so those need to count as OSes.
1686          musl* | newlib* | uclibc*)
1687                    ;;
1688          # Likewise for "kernel-libc"
1689          eabi | eabihf | gnueabi | gnueabihf)
1690                    ;;
1691          # Now accept the basic system types.
1692          # The portable systems comes first.
1693          # Each alternative MUST end in a * to match a version number.
1694          gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1695               | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1696               | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1697               | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1698               | hiux* | abug | nacl* | netware* | windows* \
1699               | os9* | macos* | osx* | ios* \
1700               | mpw* | magic* | mmixware* | mon960* | lnews* \
1701               | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1702               | aos* | aros* | cloudabi* | sortix* | twizzler* \
1703               | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1704               | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1705               | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1706               | bitrig* | openbsd* | solidbsd* | libertybsd* | os108* \
1707               | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1708               | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
1709               | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
1710               | udi* | lites* | ieee* | go32* | aux* | hcos* \
1711               | chorusrdb* | cegcc* | glidix* \
1712               | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
1713               | midipix* | mingw32* | mingw64* | mint* \
1714               | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1715               | interix* | uwin* | mks* | rhapsody* | darwin* \
1716               | openstep* | oskit* | conix* | pw32* | nonstopux* \
1717               | storm-chaos* | tops10* | tenex* | tops20* | its* \
1718               | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1719               | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1720               | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1721               | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1722               | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1723               | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1724               | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx*)
1725                    ;;
1726          # This one is extra strict with allowed versions
1727          sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1728                    # Don't forget version if it is 3.2v4 or newer.
1729                    ;;
1730          none)
1731                    ;;
1732          *)
1733                    echo Invalid configuration \`"$1"\': OS \`"$os"\' not recognized 1>&2
1734                    exit 1
1735                    ;;
1736esac
1737
1738# As a final step for OS-related things, validate the OS-kernel combination
1739# (given a valid OS), if there is a kernel.
1740case $kernel-$os in
1741          linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* | linux-musl* | linux-uclibc* )
1742                    ;;
1743          uclinux-uclibc* )
1744                    ;;
1745          -dietlibc* | -newlib* | -musl* | -uclibc* )
1746                    # These are just libc implementations, not actual OSes, and thus
1747                    # require a kernel.
1748                    echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
1749                    exit 1
1750                    ;;
1751          kfreebsd*-gnu* | kopensolaris*-gnu*)
1752                    ;;
1753          nto-qnx*)
1754                    ;;
1755          os2-emx)
1756                    ;;
1757          *-eabi* | *-gnueabi*)
1758                    ;;
1759          -*)
1760                    # Blank kernel with real OS is always fine.
1761                    ;;
1762          *-*)
1763                    echo "Invalid configuration \`$1': Kernel \`$kernel' not known to work with OS \`$os'." 1>&2
1764                    exit 1
1765                    ;;
1766esac
1767
1768# Here we handle the case where we know the os, and the CPU type, but not the
1769# manufacturer.  We pick the logical manufacturer.
1770case $vendor in
1771          unknown)
1772                    case $cpu-$os in
1773                              *-riscix*)
1774                                        vendor=acorn
1775                                        ;;
1776                              *-sunos*)
1777                                        vendor=sun
1778                                        ;;
1779                              *-cnk* | *-aix*)
1780                                        vendor=ibm
1781                                        ;;
1782                              *-beos*)
1783                                        vendor=be
1784                                        ;;
1785                              *-hpux*)
1786                                        vendor=hp
1787                                        ;;
1788                              *-mpeix*)
1789                                        vendor=hp
1790                                        ;;
1791                              *-hiux*)
1792                                        vendor=hitachi
1793                                        ;;
1794                              *-unos*)
1795                                        vendor=crds
1796                                        ;;
1797                              *-dgux*)
1798                                        vendor=dg
1799                                        ;;
1800                              *-luna*)
1801                                        vendor=omron
1802                                        ;;
1803                              *-genix*)
1804                                        vendor=ns
1805                                        ;;
1806                              *-clix*)
1807                                        vendor=intergraph
1808                                        ;;
1809                              *-mvs* | *-opened*)
1810                                        vendor=ibm
1811                                        ;;
1812                              *-os400*)
1813                                        vendor=ibm
1814                                        ;;
1815                              s390-* | s390x-*)
1816                                        vendor=ibm
1817                                        ;;
1818                              *-ptx*)
1819                                        vendor=sequent
1820                                        ;;
1821                              *-tpf*)
1822                                        vendor=ibm
1823                                        ;;
1824                              *-vxsim* | *-vxworks* | *-windiss*)
1825                                        vendor=wrs
1826                                        ;;
1827                              *-aux*)
1828                                        vendor=apple
1829                                        ;;
1830                              *-hms*)
1831                                        vendor=hitachi
1832                                        ;;
1833                              *-mpw* | *-macos*)
1834                                        vendor=apple
1835                                        ;;
1836                              *-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1837                                        vendor=atari
1838                                        ;;
1839                              *-vos*)
1840                                        vendor=stratus
1841                                        ;;
1842                    esac
1843                    ;;
1844esac
1845
1846echo "$cpu-$vendor-${kernel:+$kernel-}$os"
1847exit
1848
1849# Local variables:
1850# eval: (add-hook 'before-save-hook 'time-stamp)
1851# time-stamp-start: "timestamp='"
1852# time-stamp-format: "%:y-%02m-%02d"
1853# time-stamp-end: "'"
1854# End:
1855