xref: /trunk/main/config.sub (revision 2eda3cbf09288370cef8ee33ae6d85a5cf00a3bb)
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            | mips64octeon | mips64octeonel \
1197            | mips64orion | mips64orionel \
1198            | mips64r5900 | mips64r5900el \
1199            | mips64vr | mips64vrel \
1200            | mips64vr4100 | mips64vr4100el \
1201            | mips64vr4300 | mips64vr4300el \
1202            | mips64vr5000 | mips64vr5000el \
1203            | mips64vr5900 | mips64vr5900el \
1204            | mipsisa32 | mipsisa32el \
1205            | mipsisa32r2 | mipsisa32r2el \
1206            | mipsisa32r6 | mipsisa32r6el \
1207            | mipsisa64 | mipsisa64el \
1208            | mipsisa64r2 | mipsisa64r2el \
1209            | mipsisa64r6 | mipsisa64r6el \
1210            | mipsisa64sb1 | mipsisa64sb1el \
1211            | mipsisa64sr71k | mipsisa64sr71kel \
1212            | mipsr5900 | mipsr5900el \
1213            | mipstx39 | mipstx39el \
1214            | mmix \
1215            | mn10200 | mn10300 \
1216            | moxie \
1217            | mt \
1218            | msp430 \
1219            | nds32 | nds32le | nds32be \
1220            | nfp \
1221            | nios | nios2 | nios2eb | nios2el \
1222            | none | np1 | ns16k | ns32k | nvptx \
1223            | open8 \
1224            | or1k* \
1225            | or32 \
1226            | orion \
1227            | picochip \
1228            | pdp10 | pdp11 | pj | pjl | pn | power \
1229            | powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1230            | pru \
1231            | pyramid \
1232            | riscv | riscv32 | riscv64 \
1233            | rl78 | romp | rs6000 | rx \
1234            | s390 | s390x \
1235            | score \
1236            | sh | shl \
1237            | sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1238            | sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1239            | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1240            | sparclite \
1241            | sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1242            | spu \
1243            | tahoe \
1244            | tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1245            | tron \
1246            | ubicom32 \
1247            | v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1248            | vax \
1249            | visium \
1250            | w65 \
1251            | wasm32 | wasm64 \
1252            | we32k \
1253            | x86 | x86_64 | xc16x | xgate | xps100 \
1254            | xstormy16 | xtensa* \
1255            | ymp \
1256            | z8k | z80)
1257                ;;
1258
1259            *)
1260                echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
1261                exit 1
1262                ;;
1263        esac
1264        ;;
1265esac
1266
1267# Here we canonicalize certain aliases for manufacturers.
1268case $vendor in
1269    digital*)
1270        vendor=dec
1271        ;;
1272    commodore*)
1273        vendor=cbm
1274        ;;
1275    *)
1276        ;;
1277esac
1278
1279# Decode manufacturer-specific aliases for certain operating systems.
1280
1281if test x$basic_os != x
1282then
1283
1284# First recognize some ad-hoc caes, or perhaps split kernel-os, or else just
1285# set os.
1286case $basic_os in
1287    gnu/linux*)
1288        kernel=linux
1289        os=`echo $basic_os | sed -e 's|gnu/linux|gnu|'`
1290        ;;
1291    os2-emx)
1292        kernel=os2
1293        os=`echo $basic_os | sed -e 's|os2-emx|emx|'`
1294        ;;
1295    nto-qnx*)
1296        kernel=nto
1297        os=`echo $basic_os | sed -e 's|nto-qnx|qnx|'`
1298        ;;
1299    *-*)
1300        # shellcheck disable=SC2162
1301        IFS="-" read kernel os <<EOF
1302$basic_os
1303EOF
1304        ;;
1305    # Default OS when just kernel was specified
1306    nto*)
1307        kernel=nto
1308        os=`echo $basic_os | sed -e 's|nto|qnx|'`
1309        ;;
1310    linux*)
1311        kernel=linux
1312        os=`echo $basic_os | sed -e 's|linux|gnu|'`
1313        ;;
1314    *)
1315        kernel=
1316        os=$basic_os
1317        ;;
1318esac
1319
1320# Now, normalize the OS (knowing we just have one component, it's not a kernel,
1321# etc.)
1322case $os in
1323    # First match some system type aliases that might get confused
1324    # with valid system types.
1325    # solaris* is a basic system type, with this one exception.
1326    auroraux)
1327        os=auroraux
1328        ;;
1329    bluegene*)
1330        os=cnk
1331        ;;
1332    solaris1 | solaris1.*)
1333        os=`echo $os | sed -e 's|solaris1|sunos4|'`
1334        ;;
1335    solaris)
1336        os=solaris2
1337        ;;
1338    unixware*)
1339        os=sysv4.2uw
1340        ;;
1341    # es1800 is here to avoid being matched by es* (a different OS)
1342    es1800*)
1343        os=ose
1344        ;;
1345    # Some version numbers need modification
1346    chorusos*)
1347        os=chorusos
1348        ;;
1349    isc)
1350        os=isc2.2
1351        ;;
1352    sco6)
1353        os=sco5v6
1354        ;;
1355    sco5)
1356        os=sco3.2v5
1357        ;;
1358    sco4)
1359        os=sco3.2v4
1360        ;;
1361    sco3.2.[4-9]*)
1362        os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
1363        ;;
1364    sco*v* | scout)
1365        # Don't match below
1366        ;;
1367    sco*)
1368        os=sco3.2v2
1369        ;;
1370    psos*)
1371        os=psos
1372        ;;
1373    qnx*)
1374        os=qnx
1375        ;;
1376    hiux*)
1377        os=hiuxwe2
1378        ;;
1379    lynx*178)
1380        os=lynxos178
1381        ;;
1382    lynx*5)
1383        os=lynxos5
1384        ;;
1385    lynxos*)
1386        # don't get caught up in next wildcard
1387        ;;
1388    lynx*)
1389        os=lynxos
1390        ;;
1391    mac[0-9]*)
1392        os=`echo "$os" | sed -e 's|mac|macos|'`
1393        ;;
1394    opened*)
1395        os=openedition
1396        ;;
1397    os400*)
1398        os=os400
1399        ;;
1400    sunos5*)
1401        os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
1402        ;;
1403    sunos6*)
1404        os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
1405        ;;
1406    wince*)
1407        os=wince
1408        ;;
1409    utek*)
1410        os=bsd
1411        ;;
1412    dynix*)
1413        os=bsd
1414        ;;
1415    acis*)
1416        os=aos
1417        ;;
1418    atheos*)
1419        os=atheos
1420        ;;
1421    syllable*)
1422        os=syllable
1423        ;;
1424    386bsd)
1425        os=bsd
1426        ;;
1427    ctix* | uts*)
1428        os=sysv
1429        ;;
1430    nova*)
1431        os=rtmk-nova
1432        ;;
1433    ns2)
1434        os=nextstep2
1435        ;;
1436    # Preserve the version number of sinix5.
1437    sinix5.*)
1438        os=`echo $os | sed -e 's|sinix|sysv|'`
1439        ;;
1440    sinix*)
1441        os=sysv4
1442        ;;
1443    tpf*)
1444        os=tpf
1445        ;;
1446    triton*)
1447        os=sysv3
1448        ;;
1449    oss*)
1450        os=sysv3
1451        ;;
1452    svr4*)
1453        os=sysv4
1454        ;;
1455    svr3)
1456        os=sysv3
1457        ;;
1458    sysvr4)
1459        os=sysv4
1460        ;;
1461    ose*)
1462        os=ose
1463        ;;
1464    *mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1465        os=mint
1466        ;;
1467    dicos*)
1468        os=dicos
1469        ;;
1470    pikeos*)
1471        # Until real need of OS specific support for
1472        # particular features comes up, bare metal
1473        # configurations are quite functional.
1474        case $cpu in
1475            arm*)
1476            os=eabi
1477            ;;
1478            *)
1479            os=elf
1480            ;;
1481        esac
1482        ;;
1483    *)
1484        # No normalization, but not necessarily accepted, that comes below.
1485        ;;
1486esac
1487
1488else
1489
1490# Here we handle the default operating systems that come with various machines.
1491# The value should be what the vendor currently ships out the door with their
1492# machine or put another way, the most popular os provided with the machine.
1493
1494# Note that if you're going to try to match "-MANUFACTURER" here (say,
1495# "-sun"), then you have to tell the case statement up towards the top
1496# that MANUFACTURER isn't an operating system.  Otherwise, code above
1497# will signal an error saying that MANUFACTURER isn't an operating
1498# system, and we'll never get to this point.
1499
1500kernel=
1501case $cpu-$vendor in
1502    score-*)
1503        os=elf
1504        ;;
1505    spu-*)
1506        os=elf
1507        ;;
1508    *-acorn)
1509        os=riscix1.2
1510        ;;
1511    arm*-rebel)
1512        kernel=linux
1513        os=gnu
1514        ;;
1515    arm*-semi)
1516        os=aout
1517        ;;
1518    c4x-* | tic4x-*)
1519        os=coff
1520        ;;
1521    c8051-*)
1522        os=elf
1523        ;;
1524    clipper-intergraph)
1525        os=clix
1526        ;;
1527    hexagon-*)
1528        os=elf
1529        ;;
1530    tic54x-*)
1531        os=coff
1532        ;;
1533    tic55x-*)
1534        os=coff
1535        ;;
1536    tic6x-*)
1537        os=coff
1538        ;;
1539    # This must come before the *-dec entry.
1540    pdp10-*)
1541        os=tops20
1542        ;;
1543    pdp11-*)
1544        os=none
1545        ;;
1546    *-dec | vax-*)
1547        os=ultrix4.2
1548        ;;
1549    m68*-apollo)
1550        os=domain
1551        ;;
1552    i386-sun)
1553        os=sunos4.0.2
1554        ;;
1555    m68000-sun)
1556        os=sunos3
1557        ;;
1558    m68*-cisco)
1559        os=aout
1560        ;;
1561    mep-*)
1562        os=elf
1563        ;;
1564    mips*-cisco)
1565        os=elf
1566        ;;
1567    mips*-*)
1568        os=elf
1569        ;;
1570    or32-*)
1571        os=coff
1572        ;;
1573    *-tti)  # must be before sparc entry or we get the wrong os.
1574        os=sysv3
1575        ;;
1576    sparc-* | *-sun)
1577        os=sunos4.1.1
1578        ;;
1579    pru-*)
1580        os=elf
1581        ;;
1582    *-be)
1583        os=beos
1584        ;;
1585    *-ibm)
1586        os=aix
1587        ;;
1588    *-knuth)
1589        os=mmixware
1590        ;;
1591    *-wec)
1592        os=proelf
1593        ;;
1594    *-winbond)
1595        os=proelf
1596        ;;
1597    *-oki)
1598        os=proelf
1599        ;;
1600    *-hp)
1601        os=hpux
1602        ;;
1603    *-hitachi)
1604        os=hiux
1605        ;;
1606    i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1607        os=sysv
1608        ;;
1609    *-cbm)
1610        os=amigaos
1611        ;;
1612    *-dg)
1613        os=dgux
1614        ;;
1615    *-dolphin)
1616        os=sysv3
1617        ;;
1618    m68k-ccur)
1619        os=rtu
1620        ;;
1621    m88k-omron*)
1622        os=luna
1623        ;;
1624    *-next)
1625        os=nextstep
1626        ;;
1627    *-sequent)
1628        os=ptx
1629        ;;
1630    *-crds)
1631        os=unos
1632        ;;
1633    *-ns)
1634        os=genix
1635        ;;
1636    i370-*)
1637        os=mvs
1638        ;;
1639    *-gould)
1640        os=sysv
1641        ;;
1642    *-highlevel)
1643        os=bsd
1644        ;;
1645    *-encore)
1646        os=bsd
1647        ;;
1648    *-sgi)
1649        os=irix
1650        ;;
1651    *-siemens)
1652        os=sysv4
1653        ;;
1654    *-masscomp)
1655        os=rtu
1656        ;;
1657    f30[01]-fujitsu | f700-fujitsu)
1658        os=uxpv
1659        ;;
1660    *-rom68k)
1661        os=coff
1662        ;;
1663    *-*bug)
1664        os=coff
1665        ;;
1666    *-apple)
1667        os=macos
1668        ;;
1669    *-atari*)
1670        os=mint
1671        ;;
1672    *-wrs)
1673        os=vxworks
1674        ;;
1675    *)
1676        os=none
1677        ;;
1678esac
1679
1680fi
1681
1682# Now, validate our (potentially fixed-up) OS.
1683case $os in
1684    # Sometimes we do "kernel-abi", so those need to count as OSes.
1685    musl* | newlib* | uclibc*)
1686        ;;
1687    # Likewise for "kernel-libc"
1688    eabi | eabihf | gnueabi | gnueabihf)
1689        ;;
1690    # Now accept the basic system types.
1691    # The portable systems comes first.
1692    # Each alternative MUST end in a * to match a version number.
1693    gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1694         | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1695         | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1696         | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1697         | hiux* | abug | nacl* | netware* | windows* \
1698         | os9* | macos* | osx* | ios* \
1699         | mpw* | magic* | mmixware* | mon960* | lnews* \
1700         | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1701         | aos* | aros* | cloudabi* | sortix* | twizzler* \
1702         | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1703         | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1704         | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1705         | bitrig* | openbsd* | solidbsd* | libertybsd* | os108* \
1706         | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1707         | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
1708         | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
1709         | udi* | lites* | ieee* | go32* | aux* | hcos* \
1710         | chorusrdb* | cegcc* | glidix* \
1711         | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
1712         | midipix* | mingw32* | mingw64* | mint* \
1713         | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1714         | interix* | uwin* | mks* | rhapsody* | darwin* \
1715         | openstep* | oskit* | conix* | pw32* | nonstopux* \
1716         | storm-chaos* | tops10* | tenex* | tops20* | its* \
1717         | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1718         | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1719         | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1720         | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1721         | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1722         | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1723         | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx*)
1724        ;;
1725    # This one is extra strict with allowed versions
1726    sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1727        # Don't forget version if it is 3.2v4 or newer.
1728        ;;
1729    none)
1730        ;;
1731    *)
1732        echo Invalid configuration \`"$1"\': OS \`"$os"\' not recognized 1>&2
1733        exit 1
1734        ;;
1735esac
1736
1737# As a final step for OS-related things, validate the OS-kernel combination
1738# (given a valid OS), if there is a kernel.
1739case $kernel-$os in
1740    linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* | linux-musl* | linux-uclibc* )
1741        ;;
1742    uclinux-uclibc* )
1743        ;;
1744    -dietlibc* | -newlib* | -musl* | -uclibc* )
1745        # These are just libc implementations, not actual OSes, and thus
1746        # require a kernel.
1747        echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
1748        exit 1
1749        ;;
1750    kfreebsd*-gnu* | kopensolaris*-gnu*)
1751        ;;
1752    nto-qnx*)
1753        ;;
1754    os2-emx)
1755        ;;
1756    *-eabi* | *-gnueabi*)
1757        ;;
1758    -*)
1759        # Blank kernel with real OS is always fine.
1760        ;;
1761    *-*)
1762        echo "Invalid configuration \`$1': Kernel \`$kernel' not known to work with OS \`$os'." 1>&2
1763        exit 1
1764        ;;
1765esac
1766
1767# Here we handle the case where we know the os, and the CPU type, but not the
1768# manufacturer.  We pick the logical manufacturer.
1769case $vendor in
1770    unknown)
1771        case $cpu-$os in
1772            *-riscix*)
1773                vendor=acorn
1774                ;;
1775            *-sunos*)
1776                vendor=sun
1777                ;;
1778            *-cnk* | *-aix*)
1779                vendor=ibm
1780                ;;
1781            *-beos*)
1782                vendor=be
1783                ;;
1784            *-hpux*)
1785                vendor=hp
1786                ;;
1787            *-mpeix*)
1788                vendor=hp
1789                ;;
1790            *-hiux*)
1791                vendor=hitachi
1792                ;;
1793            *-unos*)
1794                vendor=crds
1795                ;;
1796            *-dgux*)
1797                vendor=dg
1798                ;;
1799            *-luna*)
1800                vendor=omron
1801                ;;
1802            *-genix*)
1803                vendor=ns
1804                ;;
1805            *-clix*)
1806                vendor=intergraph
1807                ;;
1808            *-mvs* | *-opened*)
1809                vendor=ibm
1810                ;;
1811            *-os400*)
1812                vendor=ibm
1813                ;;
1814            s390-* | s390x-*)
1815                vendor=ibm
1816                ;;
1817            *-ptx*)
1818                vendor=sequent
1819                ;;
1820            *-tpf*)
1821                vendor=ibm
1822                ;;
1823            *-vxsim* | *-vxworks* | *-windiss*)
1824                vendor=wrs
1825                ;;
1826            *-aux*)
1827                vendor=apple
1828                ;;
1829            *-hms*)
1830                vendor=hitachi
1831                ;;
1832            *-mpw* | *-macos*)
1833                vendor=apple
1834                ;;
1835            *-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1836                vendor=atari
1837                ;;
1838            *-vos*)
1839                vendor=stratus
1840                ;;
1841        esac
1842        ;;
1843esac
1844
1845echo "$cpu-$vendor-${kernel:+$kernel-}$os"
1846exit
1847
1848# Local variables:
1849# eval: (add-hook 'before-save-hook 'time-stamp)
1850# time-stamp-start: "timestamp='"
1851# time-stamp-format: "%:y-%02m-%02d"
1852# time-stamp-end: "'"
1853# End:
1854