1#! /bin/sh
2# Configuration validation subroutine script, version 1.1.
3#   Copyright (C) 1991, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
4# This file is (in principle) common to ALL GNU software.
5# The presence of a machine in this file suggests that SOME GNU software
6# can handle that machine.  It does not imply ALL GNU software can.
7#
8# This file is free software; you can redistribute it and/or modify
9# it under the terms of the GNU General Public License as published by
10# the Free Software Foundation; either version 2 of the License, or
11# (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program; if not, write to the Free Software
20# Foundation, Inc., 59 Temple Place - Suite 330,
21# Boston, MA 02111-1307, USA.
22
23# As a special exception to the GNU General Public License, if you
24# distribute this file as part of a program that contains a
25# configuration script generated by Autoconf, you may include it under
26# the same distribution terms that you use for the rest of that program.
27
28# Configuration subroutine to validate and canonicalize a configuration type.
29# Supply the specified configuration type as an argument.
30# If it is invalid, we print an error message on stderr and exit with code 1.
31# Otherwise, we print the canonical config type on stdout and succeed.
32
33# This file is supposed to be the same for all GNU packages
34# and recognize all the CPU types, system types and aliases
35# that are meaningful with *any* GNU software.
36# Each package is responsible for reporting which valid configurations
37# it does not support.  The user should be able to distinguish
38# a failure to support a valid configuration from a meaningless
39# configuration.
40
41# The goal of this file is to map all the various variations of a given
42# machine specification into a single specification in the form:
43#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
44# or in some cases, the newer four-part form:
45#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
46# It is wrong to echo any other type of specification.
47
48if [ x$1 = x ]
49then
50	echo Configuration name missing. 1>&2
51	echo "Usage: $0 CPU-MFR-OPSYS" 1>&2
52	echo "or     $0 ALIAS" 1>&2
53	echo where ALIAS is a recognized configuration type. 1>&2
54	exit 1
55fi
56
57# First pass through any local machine types.
58case $1 in
59	*local*)
60		echo $1
61		exit 0
62		;;
63	*)
64	;;
65esac
66
67# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
68# Here we must recognize all the valid KERNEL-OS combinations.
69maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
70case $maybe_os in
71  linux-gnu*)
72    os=-$maybe_os
73    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
74    ;;
75  *)
76    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
77    if [ $basic_machine != $1 ]
78    then os=`echo $1 | sed 's/.*-/-/'`
79    else os=; fi
80    ;;
81esac
82
83### Let's recognize common machines as not being operating systems so
84### that things like config.sub decstation-3100 work.  We also
85### recognize some manufacturers as not being operating systems, so we
86### can provide default operating systems below.
87case $os in
88	-sun*os*)
89		# Prevent following clause from handling this invalid input.
90		;;
91	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
92	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
93	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
94	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
95	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
96	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
97	-apple)
98		os=
99		basic_machine=$1
100		;;
101	-hiux*)
102		os=-hiuxwe2
103		;;
104	-sco5)
105		os=sco3.2v5
106		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
107		;;
108	-sco4)
109		os=-sco3.2v4
110		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
111		;;
112	-sco3.2.[4-9]*)
113		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
114		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
115		;;
116	-sco3.2v[4-9]*)
117		# Don't forget version if it is 3.2v4 or newer.
118		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
119		;;
120	-sco*)
121		os=-sco3.2v2
122		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
123		;;
124	-isc)
125		os=-isc2.2
126		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
127		;;
128	-clix*)
129		basic_machine=clipper-intergraph
130		;;
131	-isc*)
132		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
133		;;
134	-lynx*)
135		os=-lynxos
136		;;
137	-ptx*)
138		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
139		;;
140	-windowsnt*)
141		os=`echo $os | sed -e 's/windowsnt/winnt/'`
142		;;
143	-psos*)
144		os=-psos
145		;;
146esac
147
148# Decode aliases for certain CPU-COMPANY combinations.
149case $basic_machine in
150	# Recognize the basic CPU types without company name.
151	# Some are omitted here because they have special meanings below.
152	tahoe | i860 | m32r | m68k | m68000 | m88k | ns32k | arc | arm \
153		| arme[lb] | pyramid | mn10200 | mn10300 \
154		| tron | a29k | 580 | i960 | h8300 | hppa | hppa1.0 | hppa1.1 \
155		| alpha | alphaev5 | alphaev56 | we32k | ns16k | clipper \
156		| i370 | sh | powerpc | powerpcle | 1750a | dsp16xx | pdp11 \
157		| mips64 | mipsel | mips64el | mips64orion | mips64orionel \
158		| mipstx39 | mipstx39el \
159		| sparc | sparclet | sparclite | sparc64 | v850)
160		basic_machine=$basic_machine-unknown
161		;;
162	# We use `pc' rather than `unknown'
163	# because (1) that's what they normally are, and
164	# (2) the word "unknown" tends to confuse beginning users.
165	i[3456]86)
166	  basic_machine=$basic_machine-pc
167	  ;;
168	# Object if more than one company name word.
169	*-*-*)
170		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
171		exit 1
172		;;
173	# Recognize the basic CPU types with company name.
174	vax-* | tahoe-* | i[3456]86-* | i860-* | m32r-* | m68k-* | m68000-* \
175	      | m88k-* | sparc-* | ns32k-* | fx80-* | arc-* | arm-* | c[123]* \
176	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
177	      | power-* | none-* | 580-* | cray2-* | h8300-* | i960-* \
178	      | xmp-* | ymp-* | hppa-* | hppa1.0-* | hppa1.1-* \
179	      | alpha-* | alphaev5-* | alphaev56-* | we32k-* | cydra-* \
180	      | ns16k-* | pn-* | np1-* | xps100-* | clipper-* | orion-* \
181	      | sparclite-* | pdp11-* | sh-* | powerpc-* | powerpcle-* \
182	      | sparc64-* | mips64-* | mipsel-* \
183	      | mips64el-* | mips64orion-* | mips64orionel-*  \
184	      | mipstx39-* | mipstx39el-* \
185	      | f301-*)
186		;;
187	# Recognize the various machine names and aliases which stand
188	# for a CPU type and a company and sometimes even an OS.
189	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
190		basic_machine=m68000-att
191		;;
192	3b*)
193		basic_machine=we32k-att
194		;;
195	alliant | fx80)
196		basic_machine=fx80-alliant
197		;;
198	altos | altos3068)
199		basic_machine=m68k-altos
200		;;
201	am29k)
202		basic_machine=a29k-none
203		os=-bsd
204		;;
205	amdahl)
206		basic_machine=580-amdahl
207		os=-sysv
208		;;
209	amiga | amiga-*)
210		basic_machine=m68k-cbm
211		;;
212	amigaos | amigados)
213		basic_machine=m68k-cbm
214		os=-amigaos
215		;;
216	amigaunix | amix)
217		basic_machine=m68k-cbm
218		os=-sysv4
219		;;
220	apollo68)
221		basic_machine=m68k-apollo
222		os=-sysv
223		;;
224	aux)
225		basic_machine=m68k-apple
226		os=-aux
227		;;
228	balance)
229		basic_machine=ns32k-sequent
230		os=-dynix
231		;;
232	convex-c1)
233		basic_machine=c1-convex
234		os=-bsd
235		;;
236	convex-c2)
237		basic_machine=c2-convex
238		os=-bsd
239		;;
240	convex-c32)
241		basic_machine=c32-convex
242		os=-bsd
243		;;
244	convex-c34)
245		basic_machine=c34-convex
246		os=-bsd
247		;;
248	convex-c38)
249		basic_machine=c38-convex
250		os=-bsd
251		;;
252	cray | ymp)
253		basic_machine=ymp-cray
254		os=-unicos
255		;;
256	cray2)
257		basic_machine=cray2-cray
258		os=-unicos
259		;;
260	[ctj]90-cray)
261		basic_machine=c90-cray
262		os=-unicos
263		;;
264	crds | unos)
265		basic_machine=m68k-crds
266		;;
267	da30 | da30-*)
268		basic_machine=m68k-da30
269		;;
270	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
271		basic_machine=mips-dec
272		;;
273	delta | 3300 | motorola-3300 | motorola-delta \
274	      | 3300-motorola | delta-motorola)
275		basic_machine=m68k-motorola
276		;;
277	delta88)
278		basic_machine=m88k-motorola
279		os=-sysv3
280		;;
281	dpx20 | dpx20-*)
282		basic_machine=rs6000-bull
283		os=-bosx
284		;;
285	dpx2* | dpx2*-bull)
286		basic_machine=m68k-bull
287		os=-sysv3
288		;;
289	ebmon29k)
290		basic_machine=a29k-amd
291		os=-ebmon
292		;;
293	elxsi)
294		basic_machine=elxsi-elxsi
295		os=-bsd
296		;;
297	encore | umax | mmax)
298		basic_machine=ns32k-encore
299		;;
300	fx2800)
301		basic_machine=i860-alliant
302		;;
303	genix)
304		basic_machine=ns32k-ns
305		;;
306	gmicro)
307		basic_machine=tron-gmicro
308		os=-sysv
309		;;
310	h3050r* | hiux*)
311		basic_machine=hppa1.1-hitachi
312		os=-hiuxwe2
313		;;
314	h8300hms)
315		basic_machine=h8300-hitachi
316		os=-hms
317		;;
318	harris)
319		basic_machine=m88k-harris
320		os=-sysv3
321		;;
322	hp300-*)
323		basic_machine=m68k-hp
324		;;
325	hp300bsd)
326		basic_machine=m68k-hp
327		os=-bsd
328		;;
329	hp300hpux)
330		basic_machine=m68k-hp
331		os=-hpux
332		;;
333	hp9k2[0-9][0-9] | hp9k31[0-9])
334		basic_machine=m68000-hp
335		;;
336	hp9k3[2-9][0-9])
337		basic_machine=m68k-hp
338		;;
339	hp9k7[0-9][0-9] | hp7[0-9][0-9] | hp9k8[0-9]7 | hp8[0-9]7)
340		basic_machine=hppa1.1-hp
341		;;
342	hp9k8[0-9][0-9] | hp8[0-9][0-9])
343		basic_machine=hppa1.0-hp
344		;;
345	hppa-next)
346		os=-nextstep3
347		;;
348	i370-ibm* | ibm*)
349		basic_machine=i370-ibm
350		os=-mvs
351		;;
352# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
353	i[3456]86v32)
354		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
355		os=-sysv32
356		;;
357	i[3456]86v4*)
358		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
359		os=-sysv4
360		;;
361	i[3456]86v)
362		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
363		os=-sysv
364		;;
365	i[3456]86sol2)
366		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
367		os=-solaris2
368		;;
369	iris | iris4d)
370		basic_machine=mips-sgi
371		case $os in
372		    -irix*)
373			;;
374		    *)
375			os=-irix4
376			;;
377		esac
378		;;
379	isi68 | isi)
380		basic_machine=m68k-isi
381		os=-sysv
382		;;
383	m88k-omron*)
384		basic_machine=m88k-omron
385		;;
386	magnum | m3230)
387		basic_machine=mips-mips
388		os=-sysv
389		;;
390	merlin)
391		basic_machine=ns32k-utek
392		os=-sysv
393		;;
394	miniframe)
395		basic_machine=m68000-convergent
396		;;
397	mipsel*-linux*)
398		basic_machine=mipsel-unknown
399		os=-linux-gnu
400		;;
401	mips*-linux*)
402		basic_machine=mips-unknown
403		os=-linux-gnu
404		;;
405	mips3*-*)
406		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
407		;;
408	mips3*)
409		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
410		;;
411	ncr3000)
412		basic_machine=i486-ncr
413		os=-sysv4
414		;;
415	news | news700 | news800 | news900)
416		basic_machine=m68k-sony
417		os=-newsos
418		;;
419	news1000)
420		basic_machine=m68030-sony
421		os=-newsos
422		;;
423	news-3600 | risc-news)
424		basic_machine=mips-sony
425		os=-newsos
426		;;
427	next | m*-next )
428		basic_machine=m68k-next
429		case $os in
430		    -nextstep* )
431			;;
432		    -ns2*)
433		      os=-nextstep2
434			;;
435		    *)
436		      os=-nextstep3
437			;;
438		esac
439		;;
440	nh3000)
441		basic_machine=m68k-harris
442		os=-cxux
443		;;
444	nh[45]000)
445		basic_machine=m88k-harris
446		os=-cxux
447		;;
448	nindy960)
449		basic_machine=i960-intel
450		os=-nindy
451		;;
452	np1)
453		basic_machine=np1-gould
454		;;
455	pa-hitachi)
456		basic_machine=hppa1.1-hitachi
457		os=-hiuxwe2
458		;;
459	paragon)
460		basic_machine=i860-intel
461		os=-osf
462		;;
463	pbd)
464		basic_machine=sparc-tti
465		;;
466	pbb)
467		basic_machine=m68k-tti
468		;;
469        pc532 | pc532-*)
470		basic_machine=ns32k-pc532
471		;;
472	pentium | p5)
473		basic_machine=i586-intel
474		;;
475	pentiumpro | p6)
476		basic_machine=i686-intel
477		;;
478	pentium-* | p5-*)
479		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
480		;;
481	pentiumpro-* | p6-*)
482		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
483		;;
484	k5)
485		# We don't have specific support for AMD's K5 yet, so just call it a Pentium
486		basic_machine=i586-amd
487		;;
488	nexen)
489		# We don't have specific support for Nexgen yet, so just call it a Pentium
490		basic_machine=i586-nexgen
491		;;
492	pn)
493		basic_machine=pn-gould
494		;;
495	power)	basic_machine=rs6000-ibm
496		;;
497	ppc)	basic_machine=powerpc-unknown
498	        ;;
499	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
500		;;
501	ppcle | powerpclittle | ppc-le | powerpc-little)
502		basic_machine=powerpcle-unknown
503	        ;;
504	ppcle-* | powerpclittle-*)
505		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
506		;;
507	ps2)
508		basic_machine=i386-ibm
509		;;
510	rm[46]00)
511		basic_machine=mips-siemens
512		;;
513	rtpc | rtpc-*)
514		basic_machine=romp-ibm
515		;;
516	sequent)
517		basic_machine=i386-sequent
518		;;
519	sh)
520		basic_machine=sh-hitachi
521		os=-hms
522		;;
523	sps7)
524		basic_machine=m68k-bull
525		os=-sysv2
526		;;
527	spur)
528		basic_machine=spur-unknown
529		;;
530	sun2)
531		basic_machine=m68000-sun
532		;;
533	sun2os3)
534		basic_machine=m68000-sun
535		os=-sunos3
536		;;
537	sun2os4)
538		basic_machine=m68000-sun
539		os=-sunos4
540		;;
541	sun3os3)
542		basic_machine=m68k-sun
543		os=-sunos3
544		;;
545	sun3os4)
546		basic_machine=m68k-sun
547		os=-sunos4
548		;;
549	sun4os3)
550		basic_machine=sparc-sun
551		os=-sunos3
552		;;
553	sun4os4)
554		basic_machine=sparc-sun
555		os=-sunos4
556		;;
557	sun4sol2)
558		basic_machine=sparc-sun
559		os=-solaris2
560		;;
561	sun3 | sun3-*)
562		basic_machine=m68k-sun
563		;;
564	sun4)
565		basic_machine=sparc-sun
566		;;
567	sun386 | sun386i | roadrunner)
568		basic_machine=i386-sun
569		;;
570	symmetry)
571		basic_machine=i386-sequent
572		os=-dynix
573		;;
574	tx39)
575		basic_machine=mipstx39-unknown
576		;;
577	tx39el)
578		basic_machine=mipstx39el-unknown
579		;;
580	tower | tower-32)
581		basic_machine=m68k-ncr
582		;;
583	udi29k)
584		basic_machine=a29k-amd
585		os=-udi
586		;;
587	ultra3)
588		basic_machine=a29k-nyu
589		os=-sym1
590		;;
591	vaxv)
592		basic_machine=vax-dec
593		os=-sysv
594		;;
595	vms)
596		basic_machine=vax-dec
597		os=-vms
598		;;
599	vpp*|vx|vx-*)
600               basic_machine=f301-fujitsu
601               ;;
602	vxworks960)
603		basic_machine=i960-wrs
604		os=-vxworks
605		;;
606	vxworks68)
607		basic_machine=m68k-wrs
608		os=-vxworks
609		;;
610	vxworks29k)
611		basic_machine=a29k-wrs
612		os=-vxworks
613		;;
614	xmp)
615		basic_machine=xmp-cray
616		os=-unicos
617		;;
618        xps | xps100)
619		basic_machine=xps100-honeywell
620		;;
621	none)
622		basic_machine=none-none
623		os=-none
624		;;
625
626# Here we handle the default manufacturer of certain CPU types.  It is in
627# some cases the only manufacturer, in others, it is the most popular.
628	mips)
629		if [ x$os = x-linux-gnu ]; then
630			basic_machine=mips-unknown
631		else
632			basic_machine=mips-mips
633		fi
634		;;
635	romp)
636		basic_machine=romp-ibm
637		;;
638	rs6000)
639		basic_machine=rs6000-ibm
640		;;
641	vax)
642		basic_machine=vax-dec
643		;;
644	pdp11)
645		basic_machine=pdp11-dec
646		;;
647	we32k)
648		basic_machine=we32k-att
649		;;
650	sparc)
651		basic_machine=sparc-sun
652		;;
653        cydra)
654		basic_machine=cydra-cydrome
655		;;
656	orion)
657		basic_machine=orion-highlevel
658		;;
659	orion105)
660		basic_machine=clipper-highlevel
661		;;
662	*)
663		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
664		exit 1
665		;;
666esac
667
668# Here we canonicalize certain aliases for manufacturers.
669case $basic_machine in
670	*-digital*)
671		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
672		;;
673	*-commodore*)
674		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
675		;;
676	*)
677		;;
678esac
679
680# Decode manufacturer-specific aliases for certain operating systems.
681
682if [ x"$os" != x"" ]
683then
684case $os in
685        # First match some system type aliases
686        # that might get confused with valid system types.
687	# -solaris* is a basic system type, with this one exception.
688	-solaris1 | -solaris1.*)
689		os=`echo $os | sed -e 's|solaris1|sunos4|'`
690		;;
691	-solaris)
692		os=-solaris2
693		;;
694	-svr4*)
695		os=-sysv4
696		;;
697	-unixware*)
698		os=-sysv4.2uw
699		;;
700	-gnu/linux*)
701		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
702		;;
703	# First accept the basic system types.
704	# The portable systems comes first.
705	# Each alternative MUST END IN A *, to match a version number.
706	# -sysv* is not here because it comes later, after sysvr4.
707	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
708	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
709	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
710	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
711	      | -aos* \
712	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
713	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
714	      | -hiux* | -386bsd* | -netbsd* | -openbsd* | -freebsd* | -riscix* \
715	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* \
716	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
717	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
718	      | -cygwin32* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
719	      | -mingw32* | -linux-gnu* | -uxpv*)
720	# Remember, each alternative MUST END IN *, to match a version number.
721		;;
722	-linux*)
723		os=`echo $os | sed -e 's|linux|linux-gnu|'`
724		;;
725	-sunos5*)
726		os=`echo $os | sed -e 's|sunos5|solaris2|'`
727		;;
728	-sunos6*)
729		os=`echo $os | sed -e 's|sunos6|solaris3|'`
730		;;
731	-osfrose*)
732		os=-osfrose
733		;;
734	-osf*)
735		os=-osf
736		;;
737	-utek*)
738		os=-bsd
739		;;
740	-dynix*)
741		os=-bsd
742		;;
743	-acis*)
744		os=-aos
745		;;
746	-ctix* | -uts*)
747		os=-sysv
748		;;
749	-ns2 )
750	        os=-nextstep2
751		;;
752	# Preserve the version number of sinix5.
753	-sinix5.*)
754		os=`echo $os | sed -e 's|sinix|sysv|'`
755		;;
756	-sinix*)
757		os=-sysv4
758		;;
759	-triton*)
760		os=-sysv3
761		;;
762	-oss*)
763		os=-sysv3
764		;;
765	-svr4)
766		os=-sysv4
767		;;
768	-svr3)
769		os=-sysv3
770		;;
771	-sysvr4)
772		os=-sysv4
773		;;
774	# This must come after -sysvr4.
775	-sysv*)
776		;;
777	-xenix)
778		os=-xenix
779		;;
780	-none)
781		;;
782	*)
783		# Get rid of the `-' at the beginning of $os.
784		os=`echo $os | sed 's/[^-]*-//'`
785		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
786		exit 1
787		;;
788esac
789else
790
791# Here we handle the default operating systems that come with various machines.
792# The value should be what the vendor currently ships out the door with their
793# machine or put another way, the most popular os provided with the machine.
794
795# Note that if you're going to try to match "-MANUFACTURER" here (say,
796# "-sun"), then you have to tell the case statement up towards the top
797# that MANUFACTURER isn't an operating system.  Otherwise, code above
798# will signal an error saying that MANUFACTURER isn't an operating
799# system, and we'll never get to this point.
800
801case $basic_machine in
802	*-acorn)
803		os=-riscix1.2
804		;;
805	arm*-semi)
806		os=-aout
807		;;
808        pdp11-*)
809		os=-none
810		;;
811	*-dec | vax-*)
812		os=-ultrix4.2
813		;;
814	m68*-apollo)
815		os=-domain
816		;;
817	i386-sun)
818		os=-sunos4.0.2
819		;;
820	m68000-sun)
821		os=-sunos3
822		# This also exists in the configure program, but was not the
823		# default.
824		# os=-sunos4
825		;;
826	*-tti)	# must be before sparc entry or we get the wrong os.
827		os=-sysv3
828		;;
829	sparc-* | *-sun)
830		os=-sunos4.1.1
831		;;
832	*-ibm)
833		os=-aix
834		;;
835	*-hp)
836		os=-hpux
837		;;
838	*-hitachi)
839		os=-hiux
840		;;
841	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
842		os=-sysv
843		;;
844	*-cbm)
845		os=-amigaos
846		;;
847	*-dg)
848		os=-dgux
849		;;
850	*-dolphin)
851		os=-sysv3
852		;;
853	m68k-ccur)
854		os=-rtu
855		;;
856	m88k-omron*)
857		os=-luna
858		;;
859	*-next )
860		os=-nextstep
861		;;
862	*-sequent)
863		os=-ptx
864		;;
865	*-crds)
866		os=-unos
867		;;
868	*-ns)
869		os=-genix
870		;;
871	i370-*)
872		os=-mvs
873		;;
874	*-next)
875		os=-nextstep3
876		;;
877        *-gould)
878		os=-sysv
879		;;
880        *-highlevel)
881		os=-bsd
882		;;
883	*-encore)
884		os=-bsd
885		;;
886        *-sgi)
887		os=-irix
888		;;
889        *-siemens)
890		os=-sysv4
891		;;
892	*-masscomp)
893		os=-rtu
894		;;
895	f301-fujitsu)
896		os=-uxpv
897		;;
898	*)
899		os=-none
900		;;
901esac
902fi
903
904# Here we handle the case where we know the os, and the CPU type, but not the
905# manufacturer.  We pick the logical manufacturer.
906vendor=unknown
907case $basic_machine in
908	*-unknown)
909		case $os in
910			-riscix*)
911				vendor=acorn
912				;;
913			-sunos*)
914				vendor=sun
915				;;
916			-aix*)
917				vendor=ibm
918				;;
919			-hpux*)
920				vendor=hp
921				;;
922			-hiux*)
923				vendor=hitachi
924				;;
925			-unos*)
926				vendor=crds
927				;;
928			-dgux*)
929				vendor=dg
930				;;
931			-luna*)
932				vendor=omron
933				;;
934			-genix*)
935				vendor=ns
936				;;
937			-mvs*)
938				vendor=ibm
939				;;
940			-ptx*)
941				vendor=sequent
942				;;
943			-vxsim* | -vxworks*)
944				vendor=wrs
945				;;
946			-aux*)
947				vendor=apple
948				;;
949		esac
950		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
951		;;
952esac
953
954echo $basic_machine$os
955