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+#!/bin/sh
+# Configuration validation subroutine script, version 1.0.
+#   Copyright (C) 1991 Free Software Foundation, Inc.
+
+#This file is free software; you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation; either version 2 of the License, or
+#(at your option) any later version.
+
+#This program is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#GNU General Public License for more details.
+
+#You should have received a copy of the GNU General Public License
+#along with this program; if not, write to the Free Software
+#Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#       CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# it is wrong to echo any other type of specification
+
+# First pass through any local machine types.
+case $1 in
+        *local*)
+                echo $1
+                exit 0
+                ;;
+        *)
+        ;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS (if any).
+basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+if [ $basic_machine != $1 ]
+then os=`echo $1 | sed 's/.*-/-/'`
+else os=; fi
+
+# Lets recognize common machines as not being OS so that things like
+# config.subr decstation-3100 as legal.
+case $os in
+        -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+        -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+        -unicom* | -ibm* | -next* | -hp | -isi* | -apollo | -altos* | \
+        -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -osf* | \
+        -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+        -harris | -dolphin)
+                os=
+                basic_machine=$1
+                ;;
+        -sco*)
+                os=-scosysv322
+                basic_machine=i386-unknown
+                ;;
+        -isc*)
+                os=-iscsysv
+                basic_machine=i386-unknown
+                ;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+        # Recognize the basic CPU types with without company name.
+        # Some are omitted here because they have special meanings below.
+        tahoe | i386 | i860 | m68k | m68000 | m88k | ns32k | arm | pyramid \
+                | tron | a29k | 580 | i960 | h8300 | hppa)
+                basic_machine=$basic_machine-unknown
+                ;;
+        # Recognize the basic CPU types with with company name.
+        vax-* | tahoe-* | i386-* | i860-* | m68k-* | m68000-* | m88k-* \
+              | sparc-* | ns32k-* | fx80-* | arm-* | c[123]* \
+              | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
+              | none-* | 580-* | cray2-* | h8300-* | i960-* | xmp-* | ymp-* \
+              | hppa-*)
+                ;;
+        # Recognize the various machine names and aliases which stand
+        # for a CPU type and a company and sometimes even an OS.
+        vaxv)
+                basic_machine=vax-dec
+                os=-sysv
+                ;;
+        vms)
+                basic_machine=vax-dec
+                os=-vms
+                ;;
+        i386v32)
+                basic_machine=i386-unknown
+                os=-sysv32
+                ;;
+        i386-sco* | i386sco | sco)
+                basic_machine=i386-unknown
+                os=-scosysv322
+                ;;
+        i386-isc* | isc)
+                basic_machine=i386-unknown
+                os=-iscsysv
+                ;;
+        i386v4*)
+                basic_machine=i386-unknown
+                os=-sysv4
+                ;;
+        i386v)
+                basic_machine=i386-unknown
+                os=-sysv
+                ;;
+        spur)
+                basic_machine=spur-unknown
+                ;;
+        alliant | fx80)
+                basic_machine=fx80-alliant
+                ;;
+        convex-c1)
+                basic_machine=c1-convex
+                os=-bsd
+                ;;
+        convex-c2)
+                basic_machine=c2-convex
+                os=-bsd
+                ;;
+        convex-c32)
+                basic_machine=c32-convex
+                os=-bsd
+                ;;
+        convex-c34)
+                basic_machine=c34-convex
+                os=-bsd
+                ;;
+        convex-c38)
+                basic_machine=c38-convex
+                os=-bsd
+                ;;
+        m88k-omron*)
+                basic_machine=m88k-omron
+                ;;
+        merlin)
+                basic_machine=ns32k-utek
+                os=-sysv
+                ;;
+        crds | unos)
+                basic_machine=m68k-crds
+                ;;
+        encore | umax | mmax)
+                basic_machine=ns32k-encore
+                os=-sysv
+                ;;
+        genix)
+                basic_machine=ns32k-ns
+                ;;
+        iris | iris4d)
+                basic_machine=mips-sgi
+                os=-irix
+                ;;
+        news | news700 | news800 | news900)
+                basic_machine=m68k-sony
+                os=-newsos
+                ;;
+        3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+                basic_machine=m68000-att
+                ;;
+        delta | 3300 | motorola-3300 | motorola-delta \
+              | 3300-motorola | delta-motorola)
+                basic_machine=m68k-motorola
+                ;;
+        balance)
+                basic_machine=ns32k-sequent
+                os=-dynix
+                ;;
+        pc532)
+                basic_machine=ns32k-pc532
+                ;;
+        symmetry)
+                basic_machine=i386-sequent
+                os=-dynix
+                ;;
+        sun2)
+                basic_machine=m68000-sun
+                ;;
+        sun2os3)
+                basic_machine=m68000-sun
+                os=-sunos3
+                ;;
+        sun2os4)
+                basic_machine=m68000-sun
+                os=-sunos4
+                ;;
+        sun3os3)
+                basic_machine=m68k-sun
+                os=-sunos3
+                ;;
+        sun3os4)
+                basic_machine=m68k-sun
+                os=-sunos4
+                ;;
+        sun4os3)
+                basic_machine=sparc-sun
+                os=-sunos3
+                ;;
+        sun4os4)
+                basic_machine=sparc-sun
+                os=-sunos4
+                ;;
+        sun3)
+                basic_machine=m68k-sun
+                ;;
+        sun4)
+                basic_machine=sparc-sun
+                ;;
+        pbd)
+                basic_machine=sparc-tti
+                ;;
+        pbb)
+                basic_machine=m68k-tti
+                ;;
+        sun386 | sun386i | roadrunner)
+                basic_machine=i386-sun
+                ;;
+        ps2)
+                basic_machine=i386-ibm
+                ;;
+        next)
+                basic_machine=m68k-next
+                os=-sysv
+                ;;
+        amiga)
+                basic_machine=m68k-cbm
+                ;;
+        hp9k3[2-9][0-9])
+                basic_machine=m68k-hp
+                ;;
+        hp9k31[0-9] | hp9k2[0-9][0-9])
+                basic_machine=m68000-hp
+                ;;
+        hp9k8[0-9][0-9] | hp9k7[0-9][0-9] | hp8[0-9][0-9] | hp7[0-9][0-9])
+                basic_machine=hp800-hp
+                ;;
+        isi68 | isi)
+                basic_machine=m68k-isi
+                os=-sysv
+                ;;
+        apollo68)
+                basic_machine=m68k-apollo
+                os=-sysv
+                ;;
+        altos | altos3068)
+                basic_machine=m68k-altos
+                ;;
+        miniframe)
+                basic_machine=m68000-convergent
+                ;;
+        tower | tower-32)
+                basic_machine=m68k-ncr
+                ;;
+        news-3600 | risc-news)
+                basic_machine=mips-sony
+                os=-newsos
+                ;;
+        decstation-dec | decstation | decstation-3100 | pmax | pmin | dec3100 | decstatn)
+                basic_machine=mips-dec
+                ;;
+        magnum | m3230)
+                basic_machine=mips-mips
+                os=-sysv
+                ;;
+        gmicro)
+                basic_machine=tron-gmicro
+                os=-sysv
+                ;;
+        rtpc | rtpc-*)
+                basic_machine=romp-ibm
+                ;;
+        am29k)
+                basic_machine=a29k-none
+                os=-bsd
+                ;;
+        amdahl)
+                basic_machine=580-amdahl
+                os=-sysv
+                ;;
+        amigados)
+                basic_machine=m68k-cbm
+                os=-amigados
+                ;;
+        amigaunix | amix)
+                basic_machine=m68k-cbm
+                os=-amix
+                ;;
+        cray | ymp)
+                basic_machine=ymp-cray
+                os=-unicos
+                ;;
+        cray2)
+                basic_machine=cray2-cray
+                os=-unicos
+                ;;
+        xmp)
+                basic_machine=xmp-cray
+                os=-unicos
+                ;;
+        delta88)
+                basic_machine=m88k-motorola
+                os=-m88kbcs
+                ;;
+        dpx2)
+                basic_machine=m68k-bull
+                os=-sysv
+                ;;
+        ebmon29k)
+                basic_machine=a29k-amd
+                os=-ebmon
+                ;;
+        h8300hds)
+                basic_machine=h8300-hitachi
+                os=-hds
+                ;;
+        harris)
+                basic_machine=m88k-harris
+                os=-m88kbcs
+                ;;
+        hp300bsd)
+                basic_machine=m68k-hp
+                os=-bsd
+                ;;
+        hp300hpux)
+                basic_machine=m68k-hp
+                os=-hpux
+                ;;
+        hp9k2[0-9][0-9] | hp9k31[0-9])
+                basic_machine=m68000-hp
+                os=-hpux
+                ;;
+        hp9k3[2-9][0-9])
+                basic_machine=m68k-hp
+                os=-hpux
+                ;;
+        ncr3000)
+                basic_machine=i386-ncr
+                os=-sysv4
+                ;;
+        news1000)
+                basic_machine=m68030-sony
+                os=-newsos
+                ;;
+        nindy960)
+                basic_machine=i960-intel
+                os=-nindy
+                ;;
+        pn)
+                basic_machine=pn-gould
+                os=-sysv
+                ;;
+        np1)
+                basic_machine=np1-gould
+                os=-sysv
+                ;;
+        ultra3)
+                basic_machine=a29k-nyu
+                os=-sym1
+                ;;
+        vxworks960)
+                basic_machine=i960-wrs
+                os=-vxworks
+                ;;
+        vxworks68)
+                basic_machine=m68k-wrs
+                os=-vxworks
+                ;;
+        none)
+                basic_machine=none-none
+                os=-none
+                ;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+        mips)
+                basic_machine=mips-mips
+                ;;
+        romp)
+                basic_machine=romp-ibm
+                ;;
+        rs6000)
+                basic_machine=rs6000-ibm
+                ;;
+        vax)
+                basic_machine=vax-dec
+                ;;
+        sparc)
+                basic_machine=sparc-sun
+                ;;
+        fx2800)
+                basic_machine=i860-alliant
+                ;;
+        *)
+                echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+                exit 1
+                ;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+        *-digital*)
+                basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+                ;;
+        *-commodore*)
+                basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+                ;;
+        *)
+                ;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ "$os" ]
+then
+case $os in
+        # First accept the basic system types.
+        # The portable systems comes first.
+        # Each alternative must end in a *, to match a version number.
+        -bsd* | -sysv* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+              | -vms* | -sco* | -esix* | -isc* | -aix* | -sunos* | -hpux* \
+              | -unos* | -osf* | -luna* | -dgux* | -solari* | -sym* | -amix* \
+              | -amigados* | -msdos* | -unicos* | -aos* \
+              | -nindy* | -vxworks* | -ebmon* | -hds* | -m88kbcs*)
+                ;;
+        -newsos*)
+                os=-bsd
+                ;;
+        -osfrose*)
+                os=-osf
+                ;;
+        -osf*)
+                os=-bsd
+                ;;
+        -dynix*)
+                os=-bsd
+                ;;
+        -acis*)
+                os=-aos
+                ;;
+        -ctix* | -uts*)
+                os=-sysv
+                ;;
+        -triton*)
+                os=-sysv3
+                ;;
+        -oss*)
+                os=-sysv3
+                ;;
+        -svr4)
+                os=-sysv4
+                ;;
+        -svr3)
+                os=-sysv3
+                ;;
+        *)
+                # Get rid of the `-' at the beginning of $os.
+                os=`echo $1 | sed 's/[^-]*-//'`
+                echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+                exit 1
+                ;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+case $basic_machine in
+        *-dec | vax-*)
+                os=-ultrix42
+                ;;
+        i386-sun)
+                os=-sunos402
+                ;;
+        m68000-sun)
+                os=-sunos3
+                # This also exists in the configure program, but was not the
+                # default.
+                # os=-sunos4
+                ;;
+        *-tti)  # must be before sparc entry or we get the wrong os.
+                os=-sysv3
+                ;;
+        sparc-* | *-sun)
+                os=-sunos411
+                ;;
+        *-ibm)
+                os=-aix
+                ;;
+        *-hp)
+                os=-hpux
+                ;;
+        *-sgi | i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+                os=-sysv
+                ;;
+        *-cbm)
+                os=-amigados
+                ;;
+        *-dg)
+                os=-dgux
+                ;;
+        *-dolphin)
+                os=-sysv3
+                ;;
+        m88k-omron*)
+                os=-luna
+                ;;
+        *-crds)
+                os=-unos
+                ;;
+        *-ns)
+                os=-genix
+                ;;
+        i386-*)
+                os=-scosysv322
+                ;;
+        *)
+                os=-none
+                ;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+        *-unknown)
+                case $os in
+                        -sunos*)
+                                vendor=sun
+                                ;;
+                        -aix*)
+                                vendor=ibm
+                                ;;
+                        -hpux*)
+                                vendor=hp
+                                ;;
+                        -unos*)
+                                vendor=crds
+                                ;;
+                        -dgux*)
+                                vendor=dg
+                                ;;
+                        -luna*)
+                                vendor=omron
+                                ;;
+                        -genix*)
+                                vendor=ns
+                                ;;
+                esac
+                basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+                ;;
+esac
+
+echo $basic_machine$os