1#! /bin/sh
2# Configuration validation subroutine script.
3#   Copyright 1992-2021 Free Software Foundation, Inc.
4
5timestamp='2021-01-07'
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/cgit/config.git/plain/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 1992-2021 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	mipsEE* | ee)
817		cpu=mips64r5900el
818		vendor=scei
819		case $os in
820		    linux*)
821			;;
822		    *)
823			os=elf
824			;;
825		esac
826		;;
827	iop)
828		cpu=mipsel
829		vendor=scei
830		os=irx
831		;;
832	dvp)
833		cpu=dvp
834		vendor=scei
835		os=elf
836		;;
837	news-3600 | risc-news)
838		cpu=mips
839		vendor=sony
840		basic_os=newsos
841		;;
842	next | m*-next)
843		cpu=m68k
844		vendor=next
845		case $basic_os in
846		    openstep*)
847		        ;;
848		    nextstep*)
849			;;
850		    ns2*)
851		      basic_os=nextstep2
852			;;
853		    *)
854		      basic_os=nextstep3
855			;;
856		esac
857		;;
858	np1)
859		cpu=np1
860		vendor=gould
861		;;
862	op50n-* | op60c-*)
863		cpu=hppa1.1
864		vendor=oki
865		basic_os=proelf
866		;;
867	pa-hitachi)
868		cpu=hppa1.1
869		vendor=hitachi
870		basic_os=hiuxwe2
871		;;
872	pbd)
873		cpu=sparc
874		vendor=tti
875		;;
876	pbb)
877		cpu=m68k
878		vendor=tti
879		;;
880	pc532)
881		cpu=ns32k
882		vendor=pc532
883		;;
884	pn)
885		cpu=pn
886		vendor=gould
887		;;
888	power)
889		cpu=power
890		vendor=ibm
891		;;
892	ps2)
893		cpu=i386
894		vendor=ibm
895		;;
896	rm[46]00)
897		cpu=mips
898		vendor=siemens
899		;;
900	rtpc | rtpc-*)
901		cpu=romp
902		vendor=ibm
903		;;
904	sde)
905		cpu=mipsisa32
906		vendor=sde
907		basic_os=${basic_os:-elf}
908		;;
909	simso-wrs)
910		cpu=sparclite
911		vendor=wrs
912		basic_os=vxworks
913		;;
914	tower | tower-32)
915		cpu=m68k
916		vendor=ncr
917		;;
918	vpp*|vx|vx-*)
919		cpu=f301
920		vendor=fujitsu
921		;;
922	w65)
923		cpu=w65
924		vendor=wdc
925		;;
926	w89k-*)
927		cpu=hppa1.1
928		vendor=winbond
929		basic_os=proelf
930		;;
931	none)
932		cpu=none
933		vendor=none
934		;;
935	leon|leon[3-9])
936		cpu=sparc
937		vendor=$basic_machine
938		;;
939	leon-*|leon[3-9]-*)
940		cpu=sparc
941		vendor=$(echo "$basic_machine" | sed 's/-.*//')
942		;;
943
944	*-*)
945		# shellcheck disable=SC2162
946		IFS="-" read cpu vendor <<EOF
947$basic_machine
948EOF
949		;;
950	# We use `pc' rather than `unknown'
951	# because (1) that's what they normally are, and
952	# (2) the word "unknown" tends to confuse beginning users.
953	i*86 | x86_64)
954		cpu=$basic_machine
955		vendor=pc
956		;;
957	# These rules are duplicated from below for sake of the special case above;
958	# i.e. things that normalized to x86 arches should also default to "pc"
959	pc98)
960		cpu=i386
961		vendor=pc
962		;;
963	x64 | amd64)
964		cpu=x86_64
965		vendor=pc
966		;;
967	# Recognize the basic CPU types without company name.
968	*)
969		cpu=$basic_machine
970		vendor=unknown
971		;;
972esac
973
974unset -v basic_machine
975
976# Decode basic machines in the full and proper CPU-Company form.
977case $cpu-$vendor in
978	# Here we handle the default manufacturer of certain CPU types in canonical form. It is in
979	# some cases the only manufacturer, in others, it is the most popular.
980	craynv-unknown)
981		vendor=cray
982		basic_os=${basic_os:-unicosmp}
983		;;
984	c90-unknown | c90-cray)
985		vendor=cray
986		basic_os=${Basic_os:-unicos}
987		;;
988	fx80-unknown)
989		vendor=alliant
990		;;
991	romp-unknown)
992		vendor=ibm
993		;;
994	mmix-unknown)
995		vendor=knuth
996		;;
997	microblaze-unknown | microblazeel-unknown)
998		vendor=xilinx
999		;;
1000	rs6000-unknown)
1001		vendor=ibm
1002		;;
1003	vax-unknown)
1004		vendor=dec
1005		;;
1006	pdp11-unknown)
1007		vendor=dec
1008		;;
1009	we32k-unknown)
1010		vendor=att
1011		;;
1012	cydra-unknown)
1013		vendor=cydrome
1014		;;
1015	i370-ibm*)
1016		vendor=ibm
1017		;;
1018	orion-unknown)
1019		vendor=highlevel
1020		;;
1021	xps-unknown | xps100-unknown)
1022		cpu=xps100
1023		vendor=honeywell
1024		;;
1025
1026	# Here we normalize CPU types with a missing or matching vendor
1027	dpx20-unknown | dpx20-bull)
1028		cpu=rs6000
1029		vendor=bull
1030		basic_os=${basic_os:-bosx}
1031		;;
1032
1033	# Here we normalize CPU types irrespective of the vendor
1034	amd64-*)
1035		cpu=x86_64
1036		;;
1037	blackfin-*)
1038		cpu=bfin
1039		basic_os=linux
1040		;;
1041	c54x-*)
1042		cpu=tic54x
1043		;;
1044	c55x-*)
1045		cpu=tic55x
1046		;;
1047	c6x-*)
1048		cpu=tic6x
1049		;;
1050	e500v[12]-*)
1051		cpu=powerpc
1052		basic_os=${basic_os}"spe"
1053		;;
1054	mips3*-*)
1055		cpu=mips64
1056		;;
1057	ms1-*)
1058		cpu=mt
1059		;;
1060	m68knommu-*)
1061		cpu=m68k
1062		basic_os=linux
1063		;;
1064	m9s12z-* | m68hcs12z-* | hcs12z-* | s12z-*)
1065		cpu=s12z
1066		;;
1067	openrisc-*)
1068		cpu=or32
1069		;;
1070	parisc-*)
1071		cpu=hppa
1072		basic_os=linux
1073		;;
1074	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
1075		cpu=i586
1076		;;
1077	pentiumpro-* | p6-* | 6x86-* | athlon-* | athalon_*-*)
1078		cpu=i686
1079		;;
1080	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
1081		cpu=i686
1082		;;
1083	pentium4-*)
1084		cpu=i786
1085		;;
1086	pc98-*)
1087		cpu=i386
1088		;;
1089	ppc-* | ppcbe-*)
1090		cpu=powerpc
1091		;;
1092	ppcle-* | powerpclittle-*)
1093		cpu=powerpcle
1094		;;
1095	ppc64-*)
1096		cpu=powerpc64
1097		;;
1098	ppc64le-* | powerpc64little-*)
1099		cpu=powerpc64le
1100		;;
1101	sb1-*)
1102		cpu=mipsisa64sb1
1103		;;
1104	sb1el-*)
1105		cpu=mipsisa64sb1el
1106		;;
1107	sh5e[lb]-*)
1108		cpu=$(echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/')
1109		;;
1110	spur-*)
1111		cpu=spur
1112		;;
1113	strongarm-* | thumb-*)
1114		cpu=arm
1115		;;
1116	tx39-*)
1117		cpu=mipstx39
1118		;;
1119	tx39el-*)
1120		cpu=mipstx39el
1121		;;
1122	x64-*)
1123		cpu=x86_64
1124		;;
1125	xscale-* | xscalee[bl]-*)
1126		cpu=$(echo "$cpu" | sed 's/^xscale/arm/')
1127		;;
1128	arm64-*)
1129		cpu=aarch64
1130		;;
1131
1132	# Recognize the canonical CPU Types that limit and/or modify the
1133	# company names they are paired with.
1134	cr16-*)
1135		basic_os=${basic_os:-elf}
1136		;;
1137	crisv32-* | etraxfs*-*)
1138		cpu=crisv32
1139		vendor=axis
1140		;;
1141	cris-* | etrax*-*)
1142		cpu=cris
1143		vendor=axis
1144		;;
1145	crx-*)
1146		basic_os=${basic_os:-elf}
1147		;;
1148	neo-tandem)
1149		cpu=neo
1150		vendor=tandem
1151		;;
1152	nse-tandem)
1153		cpu=nse
1154		vendor=tandem
1155		;;
1156	nsr-tandem)
1157		cpu=nsr
1158		vendor=tandem
1159		;;
1160	nsv-tandem)
1161		cpu=nsv
1162		vendor=tandem
1163		;;
1164	nsx-tandem)
1165		cpu=nsx
1166		vendor=tandem
1167		;;
1168	mipsallegrexel-sony)
1169		cpu=mipsallegrexel
1170		vendor=sony
1171		;;
1172	tile*-*)
1173		basic_os=${basic_os:-linux-gnu}
1174		;;
1175
1176	*)
1177		# Recognize the canonical CPU types that are allowed with any
1178		# company name.
1179		case $cpu in
1180			1750a | 580 \
1181			| a29k \
1182			| aarch64 | aarch64_be \
1183			| abacus \
1184			| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
1185			| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
1186			| alphapca5[67] | alpha64pca5[67] \
1187			| am33_2.0 \
1188			| amdgcn \
1189			| arc | arceb \
1190			| arm | arm[lb]e | arme[lb] | armv* \
1191			| avr | avr32 \
1192			| asmjs \
1193			| ba \
1194			| be32 | be64 \
1195			| bfin | bpf | bs2000 \
1196			| c[123]* | c30 | [cjt]90 | c4x \
1197			| c8051 | clipper | craynv | csky | cydra \
1198			| d10v | d30v | dlx | dsp16xx | dvp \
1199			| e2k | elxsi | epiphany \
1200			| f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
1201			| h8300 | h8500 \
1202			| hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
1203			| hexagon \
1204			| i370 | i*86 | i860 | i960 | ia16 | ia64 \
1205			| ip2k | iq2000 \
1206			| k1om \
1207			| le32 | le64 \
1208			| lm32 \
1209			| loongarch32 | loongarch64 | loongarchx32 \
1210			| m32c | m32r | m32rle \
1211			| m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
1212			| m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
1213			| m88110 | m88k | maxq | mb | mcore | mep | metag \
1214			| microblaze | microblazeel \
1215			| mips | mipsbe | mipseb | mipsel | mipsle \
1216			| mips16 \
1217			| mips64 | mips64eb | mips64el \
1218			| mips64octeon | mips64octeonel \
1219			| mips64orion | mips64orionel \
1220			| mips64r5900 | mips64r5900el \
1221			| mips64vr | mips64vrel \
1222			| mips64vr4100 | mips64vr4100el \
1223			| mips64vr4300 | mips64vr4300el \
1224			| mips64vr5000 | mips64vr5000el \
1225			| mips64vr5900 | mips64vr5900el \
1226			| mipsisa32 | mipsisa32el \
1227			| mipsisa32r2 | mipsisa32r2el \
1228			| mipsisa32r6 | mipsisa32r6el \
1229			| mipsisa64 | mipsisa64el \
1230			| mipsisa64r2 | mipsisa64r2el \
1231			| mipsisa64r6 | mipsisa64r6el \
1232			| mipsisa64sb1 | mipsisa64sb1el \
1233			| mipsisa64sr71k | mipsisa64sr71kel \
1234			| mipsr5900 | mipsr5900el \
1235			| mipstx39 | mipstx39el \
1236			| mmix \
1237			| mn10200 | mn10300 \
1238			| moxie \
1239			| mt \
1240			| msp430 \
1241			| nds32 | nds32le | nds32be \
1242			| nfp \
1243			| nios | nios2 | nios2eb | nios2el \
1244			| none | np1 | ns16k | ns32k | nvptx \
1245			| open8 \
1246			| or1k* \
1247			| or32 \
1248			| orion \
1249			| picochip \
1250			| pdp10 | pdp11 | pj | pjl | pn | power \
1251			| powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1252			| pru \
1253			| pyramid \
1254			| riscv | riscv32 | riscv32be | riscv64 | riscv64be \
1255			| rl78 | romp | rs6000 | rx \
1256			| s390 | s390x \
1257			| score \
1258			| sh | shl \
1259			| sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1260			| sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1261			| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1262			| sparclite \
1263			| sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1264			| spu \
1265			| tahoe \
1266			| thumbv7* \
1267			| tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1268			| tron \
1269			| ubicom32 \
1270			| v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1271			| vax \
1272			| visium \
1273			| w65 \
1274			| wasm32 | wasm64 \
1275			| we32k \
1276			| x86 | x86_64 | xc16x | xgate | xps100 \
1277			| xstormy16 | xtensa* \
1278			| ymp \
1279			| z8k | z80)
1280				;;
1281
1282			*)
1283				echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
1284				exit 1
1285				;;
1286		esac
1287		;;
1288esac
1289
1290# Here we canonicalize certain aliases for manufacturers.
1291case $vendor in
1292	digital*)
1293		vendor=dec
1294		;;
1295	commodore*)
1296		vendor=cbm
1297		;;
1298	*)
1299		;;
1300esac
1301
1302# Decode manufacturer-specific aliases for certain operating systems.
1303
1304if test x$basic_os != x
1305then
1306
1307# First recognize some ad-hoc caes, or perhaps split kernel-os, or else just
1308# set os.
1309case $basic_os in
1310	gnu/linux*)
1311		kernel=linux
1312		os=$(echo $basic_os | sed -e 's|gnu/linux|gnu|')
1313		;;
1314	os2-emx)
1315		kernel=os2
1316		os=$(echo $basic_os | sed -e 's|os2-emx|emx|')
1317		;;
1318	nto-qnx*)
1319		kernel=nto
1320		os=$(echo $basic_os | sed -e 's|nto-qnx|qnx|')
1321		;;
1322	*-*)
1323		# shellcheck disable=SC2162
1324		IFS="-" read kernel os <<EOF
1325$basic_os
1326EOF
1327		;;
1328	# Default OS when just kernel was specified
1329	nto*)
1330		kernel=nto
1331		os=$(echo $basic_os | sed -e 's|nto|qnx|')
1332		;;
1333	linux*)
1334		kernel=linux
1335		os=$(echo $basic_os | sed -e 's|linux|gnu|')
1336		;;
1337	*)
1338		kernel=
1339		os=$basic_os
1340		;;
1341esac
1342
1343# Now, normalize the OS (knowing we just have one component, it's not a kernel,
1344# etc.)
1345case $os in
1346	# First match some system type aliases that might get confused
1347	# with valid system types.
1348	# solaris* is a basic system type, with this one exception.
1349	auroraux)
1350		os=auroraux
1351		;;
1352	bluegene*)
1353		os=cnk
1354		;;
1355	solaris1 | solaris1.*)
1356		os=$(echo $os | sed -e 's|solaris1|sunos4|')
1357		;;
1358	solaris)
1359		os=solaris2
1360		;;
1361	unixware*)
1362		os=sysv4.2uw
1363		;;
1364	# es1800 is here to avoid being matched by es* (a different OS)
1365	es1800*)
1366		os=ose
1367		;;
1368	# Some version numbers need modification
1369	chorusos*)
1370		os=chorusos
1371		;;
1372	isc)
1373		os=isc2.2
1374		;;
1375	sco6)
1376		os=sco5v6
1377		;;
1378	sco5)
1379		os=sco3.2v5
1380		;;
1381	sco4)
1382		os=sco3.2v4
1383		;;
1384	sco3.2.[4-9]*)
1385		os=$(echo $os | sed -e 's/sco3.2./sco3.2v/')
1386		;;
1387	sco*v* | scout)
1388		# Don't match below
1389		;;
1390	sco*)
1391		os=sco3.2v2
1392		;;
1393	psos*)
1394		os=psos
1395		;;
1396	qnx*)
1397		os=qnx
1398		;;
1399	hiux*)
1400		os=hiuxwe2
1401		;;
1402	lynx*178)
1403		os=lynxos178
1404		;;
1405	lynx*5)
1406		os=lynxos5
1407		;;
1408	lynxos*)
1409		# don't get caught up in next wildcard
1410		;;
1411	lynx*)
1412		os=lynxos
1413		;;
1414	mac[0-9]*)
1415		os=$(echo "$os" | sed -e 's|mac|macos|')
1416		;;
1417	opened*)
1418		os=openedition
1419		;;
1420	os400*)
1421		os=os400
1422		;;
1423	sunos5*)
1424		os=$(echo "$os" | sed -e 's|sunos5|solaris2|')
1425		;;
1426	sunos6*)
1427		os=$(echo "$os" | sed -e 's|sunos6|solaris3|')
1428		;;
1429	wince*)
1430		os=wince
1431		;;
1432	utek*)
1433		os=bsd
1434		;;
1435	dynix*)
1436		os=bsd
1437		;;
1438	acis*)
1439		os=aos
1440		;;
1441	atheos*)
1442		os=atheos
1443		;;
1444	syllable*)
1445		os=syllable
1446		;;
1447	386bsd)
1448		os=bsd
1449		;;
1450	ctix* | uts*)
1451		os=sysv
1452		;;
1453	nova*)
1454		os=rtmk-nova
1455		;;
1456	ns2)
1457		os=nextstep2
1458		;;
1459	# Preserve the version number of sinix5.
1460	sinix5.*)
1461		os=$(echo $os | sed -e 's|sinix|sysv|')
1462		;;
1463	sinix*)
1464		os=sysv4
1465		;;
1466	tpf*)
1467		os=tpf
1468		;;
1469	triton*)
1470		os=sysv3
1471		;;
1472	oss*)
1473		os=sysv3
1474		;;
1475	svr4*)
1476		os=sysv4
1477		;;
1478	svr3)
1479		os=sysv3
1480		;;
1481	sysvr4)
1482		os=sysv4
1483		;;
1484	ose*)
1485		os=ose
1486		;;
1487	*mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1488		os=mint
1489		;;
1490	dicos*)
1491		os=dicos
1492		;;
1493	pikeos*)
1494		# Until real need of OS specific support for
1495		# particular features comes up, bare metal
1496		# configurations are quite functional.
1497		case $cpu in
1498		    arm*)
1499			os=eabi
1500			;;
1501		    *)
1502			os=elf
1503			;;
1504		esac
1505		;;
1506	*)
1507		# No normalization, but not necessarily accepted, that comes below.
1508		;;
1509esac
1510
1511else
1512
1513# Here we handle the default operating systems that come with various machines.
1514# The value should be what the vendor currently ships out the door with their
1515# machine or put another way, the most popular os provided with the machine.
1516
1517# Note that if you're going to try to match "-MANUFACTURER" here (say,
1518# "-sun"), then you have to tell the case statement up towards the top
1519# that MANUFACTURER isn't an operating system.  Otherwise, code above
1520# will signal an error saying that MANUFACTURER isn't an operating
1521# system, and we'll never get to this point.
1522
1523kernel=
1524case $cpu-$vendor in
1525	score-*)
1526		os=elf
1527		;;
1528	spu-*)
1529		os=elf
1530		;;
1531	*-acorn)
1532		os=riscix1.2
1533		;;
1534	arm*-rebel)
1535		kernel=linux
1536		os=gnu
1537		;;
1538	arm*-semi)
1539		os=aout
1540		;;
1541	c4x-* | tic4x-*)
1542		os=coff
1543		;;
1544	c8051-*)
1545		os=elf
1546		;;
1547	clipper-intergraph)
1548		os=clix
1549		;;
1550	hexagon-*)
1551		os=elf
1552		;;
1553	tic54x-*)
1554		os=coff
1555		;;
1556	tic55x-*)
1557		os=coff
1558		;;
1559	tic6x-*)
1560		os=coff
1561		;;
1562	# This must come before the *-dec entry.
1563	pdp10-*)
1564		os=tops20
1565		;;
1566	pdp11-*)
1567		os=none
1568		;;
1569	*-dec | vax-*)
1570		os=ultrix4.2
1571		;;
1572	m68*-apollo)
1573		os=domain
1574		;;
1575	i386-sun)
1576		os=sunos4.0.2
1577		;;
1578	m68000-sun)
1579		os=sunos3
1580		;;
1581	m68*-cisco)
1582		os=aout
1583		;;
1584	mep-*)
1585		os=elf
1586		;;
1587	mips*-cisco)
1588		os=elf
1589		;;
1590	mips*-*)
1591		os=elf
1592		;;
1593	or32-*)
1594		os=coff
1595		;;
1596	*-tti)	# must be before sparc entry or we get the wrong os.
1597		os=sysv3
1598		;;
1599	sparc-* | *-sun)
1600		os=sunos4.1.1
1601		;;
1602	pru-*)
1603		os=elf
1604		;;
1605	*-be)
1606		os=beos
1607		;;
1608	*-ibm)
1609		os=aix
1610		;;
1611	*-knuth)
1612		os=mmixware
1613		;;
1614	*-wec)
1615		os=proelf
1616		;;
1617	*-winbond)
1618		os=proelf
1619		;;
1620	*-oki)
1621		os=proelf
1622		;;
1623	*-hp)
1624		os=hpux
1625		;;
1626	*-hitachi)
1627		os=hiux
1628		;;
1629	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1630		os=sysv
1631		;;
1632	*-cbm)
1633		os=amigaos
1634		;;
1635	*-dg)
1636		os=dgux
1637		;;
1638	*-dolphin)
1639		os=sysv3
1640		;;
1641	m68k-ccur)
1642		os=rtu
1643		;;
1644	m88k-omron*)
1645		os=luna
1646		;;
1647	*-next)
1648		os=nextstep
1649		;;
1650	*-sequent)
1651		os=ptx
1652		;;
1653	*-crds)
1654		os=unos
1655		;;
1656	*-ns)
1657		os=genix
1658		;;
1659	i370-*)
1660		os=mvs
1661		;;
1662	*-gould)
1663		os=sysv
1664		;;
1665	*-highlevel)
1666		os=bsd
1667		;;
1668	*-encore)
1669		os=bsd
1670		;;
1671	*-sgi)
1672		os=irix
1673		;;
1674	*-siemens)
1675		os=sysv4
1676		;;
1677	*-masscomp)
1678		os=rtu
1679		;;
1680	f30[01]-fujitsu | f700-fujitsu)
1681		os=uxpv
1682		;;
1683	*-rom68k)
1684		os=coff
1685		;;
1686	*-*bug)
1687		os=coff
1688		;;
1689	*-apple)
1690		os=macos
1691		;;
1692	*-atari*)
1693		os=mint
1694		;;
1695	*-wrs)
1696		os=vxworks
1697		;;
1698	*)
1699		os=none
1700		;;
1701esac
1702
1703fi
1704
1705# Now, validate our (potentially fixed-up) OS.
1706case $os in
1707	# Sometimes we do "kernel-abi", so those need to count as OSes.
1708	musl* | newlib* | uclibc*)
1709		;;
1710	# Likewise for "kernel-libc"
1711	eabi* | gnueabi*)
1712		;;
1713	# Now accept the basic system types.
1714	# The portable systems comes first.
1715	# Each alternative MUST end in a * to match a version number.
1716	gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1717	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1718	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1719	     | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1720	     | hiux* | abug | nacl* | netware* | windows* \
1721	     | os9* | macos* | osx* | ios* \
1722	     | mpw* | magic* | mmixware* | mon960* | lnews* \
1723	     | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1724	     | aos* | aros* | cloudabi* | sortix* | twizzler* \
1725	     | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1726	     | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1727	     | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1728	     | bitrig* | openbsd* | solidbsd* | libertybsd* | os108* \
1729	     | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1730	     | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
1731	     | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
1732	     | udi* | lites* | ieee* | go32* | aux* | hcos* \
1733	     | chorusrdb* | cegcc* | glidix* \
1734	     | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
1735	     | midipix* | mingw32* | mingw64* | mint* \
1736	     | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1737	     | interix* | uwin* | mks* | rhapsody* | darwin* \
1738	     | openstep* | oskit* | conix* | pw32* | nonstopux* \
1739	     | storm-chaos* | tops10* | tenex* | tops20* | its* | irx* \
1740	     | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1741	     | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1742	     | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1743	     | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1744	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1745	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1746	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx*)
1747		;;
1748	# This one is extra strict with allowed versions
1749	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1750		# Don't forget version if it is 3.2v4 or newer.
1751		;;
1752	none)
1753		;;
1754	*)
1755		echo Invalid configuration \`"$1"\': OS \`"$os"\' not recognized 1>&2
1756		exit 1
1757		;;
1758esac
1759
1760# As a final step for OS-related things, validate the OS-kernel combination
1761# (given a valid OS), if there is a kernel.
1762case $kernel-$os in
1763	linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* | linux-musl* | linux-uclibc* )
1764		;;
1765	uclinux-uclibc* )
1766		;;
1767	-dietlibc* | -newlib* | -musl* | -uclibc* )
1768		# These are just libc implementations, not actual OSes, and thus
1769		# require a kernel.
1770		echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
1771		exit 1
1772		;;
1773	kfreebsd*-gnu* | kopensolaris*-gnu*)
1774		;;
1775	nto-qnx*)
1776		;;
1777	os2-emx)
1778		;;
1779	*-eabi* | *-gnueabi*)
1780		;;
1781	-*)
1782		# Blank kernel with real OS is always fine.
1783		;;
1784	*-*)
1785		echo "Invalid configuration \`$1': Kernel \`$kernel' not known to work with OS \`$os'." 1>&2
1786		exit 1
1787		;;
1788esac
1789
1790# Here we handle the case where we know the os, and the CPU type, but not the
1791# manufacturer.  We pick the logical manufacturer.
1792case $vendor in
1793	unknown)
1794		case $cpu-$os in
1795			*-riscix*)
1796				vendor=acorn
1797				;;
1798			*-sunos*)
1799				vendor=sun
1800				;;
1801			*-cnk* | *-aix*)
1802				vendor=ibm
1803				;;
1804			*-beos*)
1805				vendor=be
1806				;;
1807			*-hpux*)
1808				vendor=hp
1809				;;
1810			*-mpeix*)
1811				vendor=hp
1812				;;
1813			*-hiux*)
1814				vendor=hitachi
1815				;;
1816			*-unos*)
1817				vendor=crds
1818				;;
1819			*-dgux*)
1820				vendor=dg
1821				;;
1822			*-luna*)
1823				vendor=omron
1824				;;
1825			*-genix*)
1826				vendor=ns
1827				;;
1828			*-clix*)
1829				vendor=intergraph
1830				;;
1831			*-mvs* | *-opened*)
1832				vendor=ibm
1833				;;
1834			*-os400*)
1835				vendor=ibm
1836				;;
1837			s390-* | s390x-*)
1838				vendor=ibm
1839				;;
1840			*-ptx*)
1841				vendor=sequent
1842				;;
1843			*-tpf*)
1844				vendor=ibm
1845				;;
1846			*-vxsim* | *-vxworks* | *-windiss*)
1847				vendor=wrs
1848				;;
1849			*-aux*)
1850				vendor=apple
1851				;;
1852			*-hms*)
1853				vendor=hitachi
1854				;;
1855			*-mpw* | *-macos*)
1856				vendor=apple
1857				;;
1858			*-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1859				vendor=atari
1860				;;
1861			*-vos*)
1862				vendor=stratus
1863				;;
1864		esac
1865		;;
1866esac
1867
1868echo "$cpu-$vendor-${kernel:+$kernel-}$os"
1869exit
1870
1871# Local variables:
1872# eval: (add-hook 'before-save-hook 'time-stamp)
1873# time-stamp-start: "timestamp='"
1874# time-stamp-format: "%:y-%02m-%02d"
1875# time-stamp-end: "'"
1876# End:
1877