Update config.guess and config.sub to recent versions
authorAlexander Barton <alex@barton.de>
Sun, 1 Apr 2018 00:32:24 +0000 (02:32 +0200)
committerAlexander Barton <alex@barton.de>
Sun, 1 Apr 2018 00:32:24 +0000 (02:32 +0200)
- config.guess: 2018-03-08
- config.sub: 2018-03-08

config.guess
config.sub

index 2e9ad7f..256083a 100644 (file)
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2016 Free Software Foundation, Inc.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
 
-timestamp='2016-10-02'
+timestamp='2018-03-08'
 
 # 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
@@ -15,7 +15,7 @@ timestamp='2016-10-02'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -27,7 +27,7 @@ timestamp='2016-10-02'
 # Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
 #
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 #
 # Please send patches to <config-patches@gnu.org>.
 
@@ -39,7 +39,7 @@ Usage: $0 [OPTION]
 
 Output the configuration name of the system \`$me' is run on.
 
-Operation modes:
+Options:
   -h, --help         print this help, then exit
   -t, --time-stamp   print date of last modification, then exit
   -v, --version      print version number, then exit
@@ -50,7 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2016 Free Software Foundation, Inc.
+Copyright 1992-2018 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -107,9 +107,9 @@ trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
 dummy=$tmp/dummy ;
 tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
 case $CC_FOR_BUILD,$HOST_CC,$CC in
- ,,)    echo "int x;" > $dummy.c ;
+ ,,)    echo "int x;" > "$dummy.c" ;
        for c in cc gcc c89 c99 ; do
-         if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+         if ($c -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then
             CC_FOR_BUILD="$c"; break ;
          fi ;
        done ;
@@ -132,14 +132,14 @@ UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
 UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
 UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
-case "${UNAME_SYSTEM}" in
+case "$UNAME_SYSTEM" in
 Linux|GNU|GNU/*)
        # If the system lacks a compiler, then just pick glibc.
        # We could probably try harder.
        LIBC=gnu
 
-       eval $set_cc_for_build
-       cat <<-EOF > $dummy.c
+       eval "$set_cc_for_build"
+       cat <<-EOF > "$dummy.c"
        #include <features.h>
        #if defined(__UCLIBC__)
        LIBC=uclibc
@@ -149,13 +149,20 @@ Linux|GNU|GNU/*)
        LIBC=gnu
        #endif
        EOF
-       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
+       eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`"
+
+       # If ldd exists, use it to detect musl libc.
+       if command -v ldd >/dev/null && \
+               ldd --version 2>&1 | grep -q ^musl
+       then
+           LIBC=musl
+       fi
        ;;
 esac
 
 # Note: order is significant - the case branches are not exclusive.
 
-case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
     *:NetBSD:*:*)
        # NetBSD (nbsd) targets should (where applicable) match one or
        # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
@@ -169,30 +176,30 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
        # portion of the name.  We always set it to "unknown".
        sysctl="sysctl -n hw.machine_arch"
        UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
-           /sbin/$sysctl 2>/dev/null || \
-           /usr/sbin/$sysctl 2>/dev/null || \
+           "/sbin/$sysctl" 2>/dev/null || \
+           "/usr/sbin/$sysctl" 2>/dev/null || \
            echo unknown)`
-       case "${UNAME_MACHINE_ARCH}" in
+       case "$UNAME_MACHINE_ARCH" in
            armeb) machine=armeb-unknown ;;
            arm*) machine=arm-unknown ;;
            sh3el) machine=shl-unknown ;;
            sh3eb) machine=sh-unknown ;;
            sh5el) machine=sh5le-unknown ;;
            earmv*)
-               arch=`echo ${UNAME_MACHINE_ARCH} | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
-               endian=`echo ${UNAME_MACHINE_ARCH} | sed -ne 's,^.*\(eb\)$,\1,p'`
-               machine=${arch}${endian}-unknown
+               arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+               endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'`
+               machine="${arch}${endian}"-unknown
                ;;
-           *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+           *) machine="$UNAME_MACHINE_ARCH"-unknown ;;
        esac
        # The Operating System including object format, if it has switched
        # to ELF recently (or will in the future) and ABI.
-       case "${UNAME_MACHINE_ARCH}" in
+       case "$UNAME_MACHINE_ARCH" in
            earm*)
                os=netbsdelf
                ;;
            arm*|i386|m68k|ns32k|sh3*|sparc|vax)
-               eval $set_cc_for_build
+               eval "$set_cc_for_build"
                if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
                        | grep -q __ELF__
                then
@@ -208,10 +215,10 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
                ;;
        esac
        # Determine ABI tags.
-       case "${UNAME_MACHINE_ARCH}" in
+       case "$UNAME_MACHINE_ARCH" in
            earm*)
                expr='s/^earmv[0-9]/-eabi/;s/eb$//'
-               abi=`echo ${UNAME_MACHINE_ARCH} | sed -e "$expr"`
+               abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
                ;;
        esac
        # The OS release
@@ -219,46 +226,55 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
        # thus, need a distinct triplet. However, they do not need
        # kernel version information, so it can be replaced with a
        # suitable tag, in the style of linux-gnu.
-       case "${UNAME_VERSION}" in
+       case "$UNAME_VERSION" in
            Debian*)
                release='-gnu'
                ;;
            *)
-               release=`echo ${UNAME_RELEASE} | sed -e 's/[-_].*//' | cut -d. -f1,2`
+               release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2`
                ;;
        esac
        # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
        # contains redundant information, the shorter form:
        # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
-       echo "${machine}-${os}${release}${abi}"
+       echo "$machine-${os}${release}${abi}"
        exit ;;
     *:Bitrig:*:*)
        UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
-       echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
+       echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE"
        exit ;;
     *:OpenBSD:*:*)
        UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
-       echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
+       echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE"
        exit ;;
     *:LibertyBSD:*:*)
        UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
-       echo ${UNAME_MACHINE_ARCH}-unknown-libertybsd${UNAME_RELEASE}
+       echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE"
+       exit ;;
+    *:MidnightBSD:*:*)
+       echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE"
        exit ;;
     *:ekkoBSD:*:*)
-       echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
+       echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE"
        exit ;;
     *:SolidBSD:*:*)
-       echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
+       echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE"
        exit ;;
     macppc:MirBSD:*:*)
-       echo powerpc-unknown-mirbsd${UNAME_RELEASE}
+       echo powerpc-unknown-mirbsd"$UNAME_RELEASE"
        exit ;;
     *:MirBSD:*:*)
-       echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
+       echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE"
        exit ;;
     *:Sortix:*:*)
-       echo ${UNAME_MACHINE}-unknown-sortix
+       echo "$UNAME_MACHINE"-unknown-sortix
+       exit ;;
+    *:Redox:*:*)
+       echo "$UNAME_MACHINE"-unknown-redox
        exit ;;
+    mips:OSF1:*.*)
+        echo mips-dec-osf1
+        exit ;;
     alpha:OSF1:*:*)
        case $UNAME_RELEASE in
        *4.0)
@@ -310,28 +326,19 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
        # A Tn.n version is a released field test version.
        # A Xn.n version is an unreleased experimental baselevel.
        # 1.2 uses "1.2" for uname -r.
-       echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+       echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"
        # Reset EXIT trap before exiting to avoid spurious non-zero exit code.
        exitcode=$?
        trap '' 0
        exit $exitcode ;;
-    Alpha\ *:Windows_NT*:*)
-       # How do we know it's Interix rather than the generic POSIX subsystem?
-       # Should we change UNAME_MACHINE based on the output of uname instead
-       # of the specific Alpha model?
-       echo alpha-pc-interix
-       exit ;;
-    21064:Windows_NT:50:3)
-       echo alpha-dec-winnt3.5
-       exit ;;
     Amiga*:UNIX_System_V:4.0:*)
        echo m68k-unknown-sysv4
        exit ;;
     *:[Aa]miga[Oo][Ss]:*:*)
-       echo ${UNAME_MACHINE}-unknown-amigaos
+       echo "$UNAME_MACHINE"-unknown-amigaos
        exit ;;
     *:[Mm]orph[Oo][Ss]:*:*)
-       echo ${UNAME_MACHINE}-unknown-morphos
+       echo "$UNAME_MACHINE"-unknown-morphos
        exit ;;
     *:OS/390:*:*)
        echo i370-ibm-openedition
@@ -343,7 +350,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
        echo powerpc-ibm-os400
        exit ;;
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
-       echo arm-acorn-riscix${UNAME_RELEASE}
+       echo arm-acorn-riscix"$UNAME_RELEASE"
        exit ;;
     arm*:riscos:*:*|arm*:RISCOS:*:*)
        echo arm-unknown-riscos
@@ -370,19 +377,19 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
            sparc) echo sparc-icl-nx7; exit ;;
        esac ;;
     s390x:SunOS:*:*)
-       echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
        exit ;;
     sun4H:SunOS:5.*:*)
-       echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
        exit ;;
     sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
-       echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
        exit ;;
     i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
-       echo i386-pc-auroraux${UNAME_RELEASE}
+       echo i386-pc-auroraux"$UNAME_RELEASE"
        exit ;;
     i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
-       eval $set_cc_for_build
+       eval "$set_cc_for_build"
        SUN_ARCH=i386
        # If there is a compiler, see if it is configured for 64-bit objects.
        # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
@@ -395,13 +402,13 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
                SUN_ARCH=x86_64
            fi
        fi
-       echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       echo "$SUN_ARCH"-pc-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
        exit ;;
     sun4*:SunOS:6*:*)
        # According to config.sub, this is the proper way to canonicalize
        # SunOS6.  Hard to guess exactly what SunOS6 will be like, but
        # it's likely to be more like Solaris than SunOS4.
-       echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
        exit ;;
     sun4*:SunOS:*:*)
        case "`/usr/bin/arch -k`" in
@@ -410,25 +417,25 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
                ;;
        esac
        # Japanese Language versions have a version number like `4.1.3-JL'.
-       echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+       echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`"
        exit ;;
     sun3*:SunOS:*:*)
-       echo m68k-sun-sunos${UNAME_RELEASE}
+       echo m68k-sun-sunos"$UNAME_RELEASE"
        exit ;;
     sun*:*:4.2BSD:*)
        UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
-       test "x${UNAME_RELEASE}" = x && UNAME_RELEASE=3
+       test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
        case "`/bin/arch`" in
            sun3)
-               echo m68k-sun-sunos${UNAME_RELEASE}
+               echo m68k-sun-sunos"$UNAME_RELEASE"
                ;;
            sun4)
-               echo sparc-sun-sunos${UNAME_RELEASE}
+               echo sparc-sun-sunos"$UNAME_RELEASE"
                ;;
        esac
        exit ;;
     aushp:SunOS:*:*)
-       echo sparc-auspex-sunos${UNAME_RELEASE}
+       echo sparc-auspex-sunos"$UNAME_RELEASE"
        exit ;;
     # The situation for MiNT is a little confusing.  The machine name
     # can be virtually everything (everything which is not
@@ -439,44 +446,44 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     # MiNT.  But MiNT is downward compatible to TOS, so this should
     # be no problem.
     atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
-       echo m68k-atari-mint${UNAME_RELEASE}
+       echo m68k-atari-mint"$UNAME_RELEASE"
        exit ;;
     atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
-       echo m68k-atari-mint${UNAME_RELEASE}
+       echo m68k-atari-mint"$UNAME_RELEASE"
        exit ;;
     *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
-       echo m68k-atari-mint${UNAME_RELEASE}
+       echo m68k-atari-mint"$UNAME_RELEASE"
        exit ;;
     milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
-       echo m68k-milan-mint${UNAME_RELEASE}
+       echo m68k-milan-mint"$UNAME_RELEASE"
        exit ;;
     hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
-       echo m68k-hades-mint${UNAME_RELEASE}
+       echo m68k-hades-mint"$UNAME_RELEASE"
        exit ;;
     *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
-       echo m68k-unknown-mint${UNAME_RELEASE}
+       echo m68k-unknown-mint"$UNAME_RELEASE"
        exit ;;
     m68k:machten:*:*)
-       echo m68k-apple-machten${UNAME_RELEASE}
+       echo m68k-apple-machten"$UNAME_RELEASE"
        exit ;;
     powerpc:machten:*:*)
-       echo powerpc-apple-machten${UNAME_RELEASE}
+       echo powerpc-apple-machten"$UNAME_RELEASE"
        exit ;;
     RISC*:Mach:*:*)
        echo mips-dec-mach_bsd4.3
        exit ;;
     RISC*:ULTRIX:*:*)
-       echo mips-dec-ultrix${UNAME_RELEASE}
+       echo mips-dec-ultrix"$UNAME_RELEASE"
        exit ;;
     VAX*:ULTRIX*:*:*)
-       echo vax-dec-ultrix${UNAME_RELEASE}
+       echo vax-dec-ultrix"$UNAME_RELEASE"
        exit ;;
     2020:CLIX:*:* | 2430:CLIX:*:*)
-       echo clipper-intergraph-clix${UNAME_RELEASE}
+       echo clipper-intergraph-clix"$UNAME_RELEASE"
        exit ;;
     mips:*:*:UMIPS | mips:*:*:RISCos)
-       eval $set_cc_for_build
-       sed 's/^        //' << EOF >$dummy.c
+       eval "$set_cc_for_build"
+       sed 's/^        //' << EOF > "$dummy.c"
 #ifdef __cplusplus
 #include <stdio.h>  /* for printf() prototype */
        int main (int argc, char *argv[]) {
@@ -485,23 +492,23 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 #endif
        #if defined (host_mips) && defined (MIPSEB)
        #if defined (SYSTYPE_SYSV)
-         printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+         printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0);
        #endif
        #if defined (SYSTYPE_SVR4)
-         printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+         printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
        #endif
        #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
-         printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+         printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
        #endif
        #endif
          exit (-1);
        }
 EOF
-       $CC_FOR_BUILD -o $dummy $dummy.c &&
-         dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
-         SYSTEM_NAME=`$dummy $dummyarg` &&
+       $CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
+         dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+         SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
            { echo "$SYSTEM_NAME"; exit; }
-       echo mips-mips-riscos${UNAME_RELEASE}
+       echo mips-mips-riscos"$UNAME_RELEASE"
        exit ;;
     Motorola:PowerMAX_OS:*:*)
        echo powerpc-motorola-powermax
@@ -527,17 +534,17 @@ EOF
     AViiON:dgux:*:*)
        # DG/UX returns AViiON for all architectures
        UNAME_PROCESSOR=`/usr/bin/uname -p`
-       if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+       if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ]
        then
-           if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
-              [ ${TARGET_BINARY_INTERFACE}x = x ]
+           if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \
+              [ "$TARGET_BINARY_INTERFACE"x = x ]
            then
-               echo m88k-dg-dgux${UNAME_RELEASE}
+               echo m88k-dg-dgux"$UNAME_RELEASE"
            else
-               echo m88k-dg-dguxbcs${UNAME_RELEASE}
+               echo m88k-dg-dguxbcs"$UNAME_RELEASE"
            fi
        else
-           echo i586-dg-dgux${UNAME_RELEASE}
+           echo i586-dg-dgux"$UNAME_RELEASE"
        fi
        exit ;;
     M88*:DolphinOS:*:*)        # DolphinOS (SVR3)
@@ -554,7 +561,7 @@ EOF
        echo m68k-tektronix-bsd
        exit ;;
     *:IRIX*:*:*)
-       echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+       echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`"
        exit ;;
     ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
        echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
@@ -566,14 +573,14 @@ EOF
        if [ -x /usr/bin/oslevel ] ; then
                IBM_REV=`/usr/bin/oslevel`
        else
-               IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+               IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
        fi
-       echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+       echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV"
        exit ;;
     *:AIX:2:3)
        if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
-               eval $set_cc_for_build
-               sed 's/^                //' << EOF >$dummy.c
+               eval "$set_cc_for_build"
+               sed 's/^                //' << EOF > "$dummy.c"
                #include <sys/systemcfg.h>
 
                main()
@@ -584,7 +591,7 @@ EOF
                        exit(0);
                        }
 EOF
-               if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
+               if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"`
                then
                        echo "$SYSTEM_NAME"
                else
@@ -598,7 +605,7 @@ EOF
        exit ;;
     *:AIX:*:[4567])
        IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
-       if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
+       if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then
                IBM_ARCH=rs6000
        else
                IBM_ARCH=powerpc
@@ -607,18 +614,18 @@ EOF
                IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
                           awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
        else
-               IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+               IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
        fi
-       echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+       echo "$IBM_ARCH"-ibm-aix"$IBM_REV"
        exit ;;
     *:AIX:*:*)
        echo rs6000-ibm-aix
        exit ;;
-    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+    ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
        echo romp-ibm-bsd4.4
        exit ;;
     ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
-       echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
+       echo romp-ibm-bsd"$UNAME_RELEASE"   # 4.3 with uname added to
        exit ;;                             # report: romp-ibm BSD 4.3
     *:BOSX:*:*)
        echo rs6000-bull-bosx
@@ -633,28 +640,28 @@ EOF
        echo m68k-hp-bsd4.4
        exit ;;
     9000/[34678]??:HP-UX:*:*)
-       HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
-       case "${UNAME_MACHINE}" in
-           9000/31? )            HP_ARCH=m68000 ;;
-           9000/[34]?? )         HP_ARCH=m68k ;;
+       HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+       case "$UNAME_MACHINE" in
+           9000/31?)            HP_ARCH=m68000 ;;
+           9000/[34]??)         HP_ARCH=m68k ;;
            9000/[678][0-9][0-9])
                if [ -x /usr/bin/getconf ]; then
                    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
                    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
-                   case "${sc_cpu_version}" in
+                   case "$sc_cpu_version" in
                      523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
                      528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
                      532)                      # CPU_PA_RISC2_0
-                       case "${sc_kernel_bits}" in
+                       case "$sc_kernel_bits" in
                          32) HP_ARCH=hppa2.0n ;;
                          64) HP_ARCH=hppa2.0w ;;
                          '') HP_ARCH=hppa2.0 ;;   # HP-UX 10.20
                        esac ;;
                    esac
                fi
-               if [ "${HP_ARCH}" = "" ]; then
-                   eval $set_cc_for_build
-                   sed 's/^            //' << EOF >$dummy.c
+               if [ "$HP_ARCH" = "" ]; then
+                   eval "$set_cc_for_build"
+                   sed 's/^            //' << EOF > "$dummy.c"
 
                #define _HPUX_SOURCE
                #include <stdlib.h>
@@ -687,13 +694,13 @@ EOF
                    exit (0);
                }
 EOF
-                   (CCOPTS="" $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+                   (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"`
                    test -z "$HP_ARCH" && HP_ARCH=hppa
                fi ;;
        esac
-       if [ ${HP_ARCH} = hppa2.0w ]
+       if [ "$HP_ARCH" = hppa2.0w ]
        then
-           eval $set_cc_for_build
+           eval "$set_cc_for_build"
 
            # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
            # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
@@ -712,15 +719,15 @@ EOF
                HP_ARCH=hppa64
            fi
        fi
-       echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+       echo "$HP_ARCH"-hp-hpux"$HPUX_REV"
        exit ;;
     ia64:HP-UX:*:*)
-       HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
-       echo ia64-hp-hpux${HPUX_REV}
+       HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+       echo ia64-hp-hpux"$HPUX_REV"
        exit ;;
     3050*:HI-UX:*:*)
-       eval $set_cc_for_build
-       sed 's/^        //' << EOF >$dummy.c
+       eval "$set_cc_for_build"
+       sed 's/^        //' << EOF > "$dummy.c"
        #include <unistd.h>
        int
        main ()
@@ -745,11 +752,11 @@ EOF
          exit (0);
        }
 EOF
-       $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
+       $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
                { echo "$SYSTEM_NAME"; exit; }
        echo unknown-hitachi-hiuxwe2
        exit ;;
-    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
        echo hppa1.1-hp-bsd
        exit ;;
     9000/8??:4.3bsd:*:*)
@@ -758,7 +765,7 @@ EOF
     *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
        echo hppa1.0-hp-mpeix
        exit ;;
-    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
        echo hppa1.1-hp-osf
        exit ;;
     hp8??:OSF1:*:*)
@@ -766,9 +773,9 @@ EOF
        exit ;;
     i*86:OSF1:*:*)
        if [ -x /usr/sbin/sysversion ] ; then
-           echo ${UNAME_MACHINE}-unknown-osf1mk
+           echo "$UNAME_MACHINE"-unknown-osf1mk
        else
-           echo ${UNAME_MACHINE}-unknown-osf1
+           echo "$UNAME_MACHINE"-unknown-osf1
        fi
        exit ;;
     parisc*:Lites*:*:*)
@@ -793,127 +800,109 @@ EOF
        echo c4-convex-bsd
        exit ;;
     CRAY*Y-MP:*:*:*)
-       echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
        exit ;;
     CRAY*[A-Z]90:*:*:*)
-       echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+       echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
        | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
              -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
              -e 's/\.[^.]*$/.X/'
        exit ;;
     CRAY*TS:*:*:*)
-       echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
        exit ;;
     CRAY*T3E:*:*:*)
-       echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
        exit ;;
     CRAY*SV1:*:*:*)
-       echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
        exit ;;
     *:UNICOS/mp:*:*)
-       echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
        exit ;;
     F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
        FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
        FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
-       FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+       FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
        echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
        exit ;;
     5000:UNIX_System_V:4.*:*)
        FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
-       FUJITSU_REL=`echo ${UNAME_RELEASE} | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
+       FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
        echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
        exit ;;
     i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
-       echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+       echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE"
        exit ;;
     sparc*:BSD/OS:*:*)
-       echo sparc-unknown-bsdi${UNAME_RELEASE}
+       echo sparc-unknown-bsdi"$UNAME_RELEASE"
        exit ;;
     *:BSD/OS:*:*)
-       echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+       echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE"
        exit ;;
     *:FreeBSD:*:*)
        UNAME_PROCESSOR=`/usr/bin/uname -p`
-       case ${UNAME_PROCESSOR} in
+       case "$UNAME_PROCESSOR" in
            amd64)
-               echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
-           *)
-               echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+               UNAME_PROCESSOR=x86_64 ;;
+           i386)
+               UNAME_PROCESSOR=i586 ;;
        esac
+       echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
        exit ;;
     i*:CYGWIN*:*)
-       echo ${UNAME_MACHINE}-pc-cygwin
+       echo "$UNAME_MACHINE"-pc-cygwin
        exit ;;
     *:MINGW64*:*)
-       echo ${UNAME_MACHINE}-pc-mingw64
+       echo "$UNAME_MACHINE"-pc-mingw64
        exit ;;
     *:MINGW*:*)
-       echo ${UNAME_MACHINE}-pc-mingw32
+       echo "$UNAME_MACHINE"-pc-mingw32
        exit ;;
     *:MSYS*:*)
-       echo ${UNAME_MACHINE}-pc-msys
-       exit ;;
-    i*:windows32*:*)
-       # uname -m includes "-pc" on this system.
-       echo ${UNAME_MACHINE}-mingw32
+       echo "$UNAME_MACHINE"-pc-msys
        exit ;;
     i*:PW*:*)
-       echo ${UNAME_MACHINE}-pc-pw32
+       echo "$UNAME_MACHINE"-pc-pw32
        exit ;;
     *:Interix*:*)
-       case ${UNAME_MACHINE} in
+       case "$UNAME_MACHINE" in
            x86)
-               echo i586-pc-interix${UNAME_RELEASE}
+               echo i586-pc-interix"$UNAME_RELEASE"
                exit ;;
            authenticamd | genuineintel | EM64T)
-               echo x86_64-unknown-interix${UNAME_RELEASE}
+               echo x86_64-unknown-interix"$UNAME_RELEASE"
                exit ;;
            IA64)
-               echo ia64-unknown-interix${UNAME_RELEASE}
+               echo ia64-unknown-interix"$UNAME_RELEASE"
                exit ;;
        esac ;;
-    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
-       echo i${UNAME_MACHINE}-pc-mks
-       exit ;;
-    8664:Windows_NT:*)
-       echo x86_64-pc-mks
-       exit ;;
-    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
-       # How do we know it's Interix rather than the generic POSIX subsystem?
-       # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
-       # UNAME_MACHINE based on the output of uname instead of i386?
-       echo i586-pc-interix
-       exit ;;
     i*:UWIN*:*)
-       echo ${UNAME_MACHINE}-pc-uwin
+       echo "$UNAME_MACHINE"-pc-uwin
        exit ;;
     amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
        echo x86_64-unknown-cygwin
        exit ;;
-    p*:CYGWIN*:*)
-       echo powerpcle-unknown-cygwin
-       exit ;;
     prep*:SunOS:5.*:*)
-       echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
        exit ;;
     *:GNU:*:*)
        # the GNU system
-       echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+       echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`"
        exit ;;
     *:GNU/*:*:*)
        # other systems with GNU libc and userland
-       echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
+       echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC"
        exit ;;
     i*86:Minix:*:*)
-       echo ${UNAME_MACHINE}-pc-minix
+       echo "$UNAME_MACHINE"-pc-minix
        exit ;;
     aarch64:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     aarch64_be:Linux:*:*)
        UNAME_MACHINE=aarch64_be
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     alpha:Linux:*:*)
        case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
@@ -927,63 +916,63 @@ EOF
        esac
        objdump --private-headers /bin/sh | grep -q ld.so.1
        if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     arc:Linux:*:* | arceb:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     arm*:Linux:*:*)
-       eval $set_cc_for_build
+       eval "$set_cc_for_build"
        if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
            | grep -q __ARM_EABI__
        then
-           echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+           echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        else
            if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
                | grep -q __ARM_PCS_VFP
            then
-               echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
+               echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi
            else
-               echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
+               echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf
            fi
        fi
        exit ;;
     avr32*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     cris:Linux:*:*)
-       echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+       echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
        exit ;;
     crisv32:Linux:*:*)
-       echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+       echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
        exit ;;
     e2k:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     frv:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     hexagon:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     i*86:Linux:*:*)
-       echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+       echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
        exit ;;
     ia64:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     k1om:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     m32r*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     m68*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     mips:Linux:*:* | mips64:Linux:*:*)
-       eval $set_cc_for_build
-       sed 's/^        //' << EOF >$dummy.c
+       eval "$set_cc_for_build"
+       sed 's/^        //' << EOF > "$dummy.c"
        #undef CPU
        #undef ${UNAME_MACHINE}
        #undef ${UNAME_MACHINE}el
@@ -997,70 +986,70 @@ EOF
        #endif
        #endif
 EOF
-       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
-       test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
+       eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
+       test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
        ;;
     mips64el:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     openrisc*:Linux:*:*)
-       echo or1k-unknown-linux-${LIBC}
+       echo or1k-unknown-linux-"$LIBC"
        exit ;;
     or32:Linux:*:* | or1k*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     padre:Linux:*:*)
-       echo sparc-unknown-linux-${LIBC}
+       echo sparc-unknown-linux-"$LIBC"
        exit ;;
     parisc64:Linux:*:* | hppa64:Linux:*:*)
-       echo hppa64-unknown-linux-${LIBC}
+       echo hppa64-unknown-linux-"$LIBC"
        exit ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
        # Look for CPU level
        case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
-         PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
-         PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
-         *)    echo hppa-unknown-linux-${LIBC} ;;
+         PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;;
+         PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;;
+         *)    echo hppa-unknown-linux-"$LIBC" ;;
        esac
        exit ;;
     ppc64:Linux:*:*)
-       echo powerpc64-unknown-linux-${LIBC}
+       echo powerpc64-unknown-linux-"$LIBC"
        exit ;;
     ppc:Linux:*:*)
-       echo powerpc-unknown-linux-${LIBC}
+       echo powerpc-unknown-linux-"$LIBC"
        exit ;;
     ppc64le:Linux:*:*)
-       echo powerpc64le-unknown-linux-${LIBC}
+       echo powerpc64le-unknown-linux-"$LIBC"
        exit ;;
     ppcle:Linux:*:*)
-       echo powerpcle-unknown-linux-${LIBC}
+       echo powerpcle-unknown-linux-"$LIBC"
        exit ;;
     riscv32:Linux:*:* | riscv64:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
-       echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
+       echo "$UNAME_MACHINE"-ibm-linux-"$LIBC"
        exit ;;
     sh64*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     sh*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     tile*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     vax:Linux:*:*)
-       echo ${UNAME_MACHINE}-dec-linux-${LIBC}
+       echo "$UNAME_MACHINE"-dec-linux-"$LIBC"
        exit ;;
     x86_64:Linux:*:*)
-       echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+       echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
        exit ;;
     xtensa*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     i*86:DYNIX/ptx:4*:*)
        # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
@@ -1074,34 +1063,34 @@ EOF
        # I am not positive that other SVR4 systems won't match this,
        # I just have to hope.  -- rms.
        # Use sysv4.2uw... so that sysv4* matches it.
-       echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+       echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION"
        exit ;;
     i*86:OS/2:*:*)
        # If we were able to find `uname', then EMX Unix compatibility
        # is probably installed.
-       echo ${UNAME_MACHINE}-pc-os2-emx
+       echo "$UNAME_MACHINE"-pc-os2-emx
        exit ;;
     i*86:XTS-300:*:STOP)
-       echo ${UNAME_MACHINE}-unknown-stop
+       echo "$UNAME_MACHINE"-unknown-stop
        exit ;;
     i*86:atheos:*:*)
-       echo ${UNAME_MACHINE}-unknown-atheos
+       echo "$UNAME_MACHINE"-unknown-atheos
        exit ;;
     i*86:syllable:*:*)
-       echo ${UNAME_MACHINE}-pc-syllable
+       echo "$UNAME_MACHINE"-pc-syllable
        exit ;;
     i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
-       echo i386-unknown-lynxos${UNAME_RELEASE}
+       echo i386-unknown-lynxos"$UNAME_RELEASE"
        exit ;;
     i*86:*DOS:*:*)
-       echo ${UNAME_MACHINE}-pc-msdosdjgpp
+       echo "$UNAME_MACHINE"-pc-msdosdjgpp
        exit ;;
-    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
-       UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
+    i*86:*:4.*:*)
+       UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'`
        if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
-               echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
+               echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL"
        else
-               echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
+               echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL"
        fi
        exit ;;
     i*86:*:5:[678]*)
@@ -1111,12 +1100,12 @@ EOF
            *Pentium)        UNAME_MACHINE=i586 ;;
            *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
        esac
-       echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+       echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}"
        exit ;;
     i*86:*:3.2:*)
        if test -f /usr/options/cb.name; then
                UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
-               echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+               echo "$UNAME_MACHINE"-pc-isc"$UNAME_REL"
        elif /bin/uname -X 2>/dev/null >/dev/null ; then
                UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
                (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
@@ -1126,9 +1115,9 @@ EOF
                        && UNAME_MACHINE=i686
                (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
                        && UNAME_MACHINE=i686
-               echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+               echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL"
        else
-               echo ${UNAME_MACHINE}-pc-sysv32
+               echo "$UNAME_MACHINE"-pc-sysv32
        fi
        exit ;;
     pc:*:*:*)
@@ -1148,9 +1137,9 @@ EOF
        exit ;;
     i860:*:4.*:*) # i860-SVR4
        if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
-         echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+         echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4
        else # Add other i860-SVR4 vendors below as they are discovered.
-         echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
+         echo i860-unknown-sysv"$UNAME_RELEASE"  # Unknown i860-SVR4
        fi
        exit ;;
     mini*:CTIX:SYS*5:*)
@@ -1170,9 +1159,9 @@ EOF
        test -r /etc/.relid \
        && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-         && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+         && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
        /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
-         && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+         && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
     3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
          && { echo i486-ncr-sysv4; exit; } ;;
@@ -1181,28 +1170,28 @@ EOF
        test -r /etc/.relid \
            && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-           && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+           && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
        /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
-           && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
+           && { echo i586-ncr-sysv4.3"$OS_REL"; exit; }
        /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
-           && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+           && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
     m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
-       echo m68k-unknown-lynxos${UNAME_RELEASE}
+       echo m68k-unknown-lynxos"$UNAME_RELEASE"
        exit ;;
     mc68030:UNIX_System_V:4.*:*)
        echo m68k-atari-sysv4
        exit ;;
     TSUNAMI:LynxOS:2.*:*)
-       echo sparc-unknown-lynxos${UNAME_RELEASE}
+       echo sparc-unknown-lynxos"$UNAME_RELEASE"
        exit ;;
     rs6000:LynxOS:2.*:*)
-       echo rs6000-unknown-lynxos${UNAME_RELEASE}
+       echo rs6000-unknown-lynxos"$UNAME_RELEASE"
        exit ;;
     PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
-       echo powerpc-unknown-lynxos${UNAME_RELEASE}
+       echo powerpc-unknown-lynxos"$UNAME_RELEASE"
        exit ;;
     SM[BE]S:UNIX_SV:*:*)
-       echo mips-dde-sysv${UNAME_RELEASE}
+       echo mips-dde-sysv"$UNAME_RELEASE"
        exit ;;
     RM*:ReliantUNIX-*:*:*)
        echo mips-sni-sysv4
@@ -1213,7 +1202,7 @@ EOF
     *:SINIX-*:*:*)
        if uname -p 2>/dev/null >/dev/null ; then
                UNAME_MACHINE=`(uname -p) 2>/dev/null`
-               echo ${UNAME_MACHINE}-sni-sysv4
+               echo "$UNAME_MACHINE"-sni-sysv4
        else
                echo ns32k-sni-sysv
        fi
@@ -1233,23 +1222,23 @@ EOF
        exit ;;
     i*86:VOS:*:*)
        # From Paul.Green@stratus.com.
-       echo ${UNAME_MACHINE}-stratus-vos
+       echo "$UNAME_MACHINE"-stratus-vos
        exit ;;
     *:VOS:*:*)
        # From Paul.Green@stratus.com.
        echo hppa1.1-stratus-vos
        exit ;;
     mc68*:A/UX:*:*)
-       echo m68k-apple-aux${UNAME_RELEASE}
+       echo m68k-apple-aux"$UNAME_RELEASE"
        exit ;;
     news*:NEWS-OS:6*:*)
        echo mips-sony-newsos6
        exit ;;
     R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
        if [ -d /usr/nec ]; then
-               echo mips-nec-sysv${UNAME_RELEASE}
+               echo mips-nec-sysv"$UNAME_RELEASE"
        else
-               echo mips-unknown-sysv${UNAME_RELEASE}
+               echo mips-unknown-sysv"$UNAME_RELEASE"
        fi
        exit ;;
     BeBox:BeOS:*:*)    # BeOS running on hardware made by Be, PPC only.
@@ -1268,49 +1257,56 @@ EOF
        echo x86_64-unknown-haiku
        exit ;;
     SX-4:SUPER-UX:*:*)
-       echo sx4-nec-superux${UNAME_RELEASE}
+       echo sx4-nec-superux"$UNAME_RELEASE"
        exit ;;
     SX-5:SUPER-UX:*:*)
-       echo sx5-nec-superux${UNAME_RELEASE}
+       echo sx5-nec-superux"$UNAME_RELEASE"
        exit ;;
     SX-6:SUPER-UX:*:*)
-       echo sx6-nec-superux${UNAME_RELEASE}
+       echo sx6-nec-superux"$UNAME_RELEASE"
        exit ;;
     SX-7:SUPER-UX:*:*)
-       echo sx7-nec-superux${UNAME_RELEASE}
+       echo sx7-nec-superux"$UNAME_RELEASE"
        exit ;;
     SX-8:SUPER-UX:*:*)
-       echo sx8-nec-superux${UNAME_RELEASE}
+       echo sx8-nec-superux"$UNAME_RELEASE"
        exit ;;
     SX-8R:SUPER-UX:*:*)
-       echo sx8r-nec-superux${UNAME_RELEASE}
+       echo sx8r-nec-superux"$UNAME_RELEASE"
        exit ;;
     SX-ACE:SUPER-UX:*:*)
-       echo sxace-nec-superux${UNAME_RELEASE}
+       echo sxace-nec-superux"$UNAME_RELEASE"
        exit ;;
     Power*:Rhapsody:*:*)
-       echo powerpc-apple-rhapsody${UNAME_RELEASE}
+       echo powerpc-apple-rhapsody"$UNAME_RELEASE"
        exit ;;
     *:Rhapsody:*:*)
-       echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+       echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE"
        exit ;;
     *:Darwin:*:*)
        UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
-       eval $set_cc_for_build
+       eval "$set_cc_for_build"
        if test "$UNAME_PROCESSOR" = unknown ; then
            UNAME_PROCESSOR=powerpc
        fi
-       if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
+       if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then
            if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
                if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
-                   (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
-                   grep IS_64BIT_ARCH >/dev/null
+                      (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+                      grep IS_64BIT_ARCH >/dev/null
                then
                    case $UNAME_PROCESSOR in
                        i386) UNAME_PROCESSOR=x86_64 ;;
                        powerpc) UNAME_PROCESSOR=powerpc64 ;;
                    esac
                fi
+               # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
+               if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
+                      (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+                      grep IS_PPC >/dev/null
+               then
+                   UNAME_PROCESSOR=powerpc
+               fi
            fi
        elif test "$UNAME_PROCESSOR" = i386 ; then
            # Avoid executing cc on OS X 10.9, as it ships with a stub
@@ -1321,7 +1317,7 @@ EOF
            # that Apple uses in portable devices.
            UNAME_PROCESSOR=x86_64
        fi
-       echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
+       echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE"
        exit ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
        UNAME_PROCESSOR=`uname -p`
@@ -1329,19 +1325,25 @@ EOF
                UNAME_PROCESSOR=i386
                UNAME_MACHINE=pc
        fi
-       echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
+       echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE"
        exit ;;
     *:QNX:*:4*)
        echo i386-pc-qnx
        exit ;;
-    NEO-?:NONSTOP_KERNEL:*:*)
-       echo neo-tandem-nsk${UNAME_RELEASE}
+    NEO-*:NONSTOP_KERNEL:*:*)
+       echo neo-tandem-nsk"$UNAME_RELEASE"
        exit ;;
     NSE-*:NONSTOP_KERNEL:*:*)
-       echo nse-tandem-nsk${UNAME_RELEASE}
+       echo nse-tandem-nsk"$UNAME_RELEASE"
        exit ;;
-    NSR-?:NONSTOP_KERNEL:*:*)
-       echo nsr-tandem-nsk${UNAME_RELEASE}
+    NSR-*:NONSTOP_KERNEL:*:*)
+       echo nsr-tandem-nsk"$UNAME_RELEASE"
+       exit ;;
+    NSV-*:NONSTOP_KERNEL:*:*)
+       echo nsv-tandem-nsk"$UNAME_RELEASE"
+       exit ;;
+    NSX-*:NONSTOP_KERNEL:*:*)
+       echo nsx-tandem-nsk"$UNAME_RELEASE"
        exit ;;
     *:NonStop-UX:*:*)
        echo mips-compaq-nonstopux
@@ -1350,7 +1352,7 @@ EOF
        echo bs2000-siemens-sysv
        exit ;;
     DS/*:UNIX_System_V:*:*)
-       echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+       echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE"
        exit ;;
     *:Plan9:*:*)
        # "uname -m" is not consistent, so use $cputype instead. 386
@@ -1361,7 +1363,7 @@ EOF
        else
            UNAME_MACHINE="$cputype"
        fi
-       echo ${UNAME_MACHINE}-unknown-plan9
+       echo "$UNAME_MACHINE"-unknown-plan9
        exit ;;
     *:TOPS-10:*:*)
        echo pdp10-unknown-tops10
@@ -1382,14 +1384,14 @@ EOF
        echo pdp10-unknown-its
        exit ;;
     SEI:*:*:SEIUX)
-       echo mips-sei-seiux${UNAME_RELEASE}
+       echo mips-sei-seiux"$UNAME_RELEASE"
        exit ;;
     *:DragonFly:*:*)
-       echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+       echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
        exit ;;
     *:*VMS:*:*)
        UNAME_MACHINE=`(uname -p) 2>/dev/null`
-       case "${UNAME_MACHINE}" in
+       case "$UNAME_MACHINE" in
            A*) echo alpha-dec-vms ; exit ;;
            I*) echo ia64-dec-vms ; exit ;;
            V*) echo vax-dec-vms ; exit ;;
@@ -1398,32 +1400,44 @@ EOF
        echo i386-pc-xenix
        exit ;;
     i*86:skyos:*:*)
-       echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE} | sed -e 's/ .*$//'`
+       echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`"
        exit ;;
     i*86:rdos:*:*)
-       echo ${UNAME_MACHINE}-pc-rdos
+       echo "$UNAME_MACHINE"-pc-rdos
        exit ;;
     i*86:AROS:*:*)
-       echo ${UNAME_MACHINE}-pc-aros
+       echo "$UNAME_MACHINE"-pc-aros
        exit ;;
     x86_64:VMkernel:*:*)
-       echo ${UNAME_MACHINE}-unknown-esx
+       echo "$UNAME_MACHINE"-unknown-esx
        exit ;;
     amd64:Isilon\ OneFS:*:*)
        echo x86_64-unknown-onefs
        exit ;;
 esac
 
+echo "$0: unable to guess system type" >&2
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM" in
+    mips:Linux | mips64:Linux)
+       # If we got here on MIPS GNU/Linux, output extra information.
+       cat >&2 <<EOF
+
+NOTE: MIPS GNU/Linux systems require a C compiler to fully recognize
+the system type. Please install a C compiler and try again.
+EOF
+       ;;
+esac
+
 cat >&2 <<EOF
-$0: unable to guess system type
 
 This script (version $timestamp), has failed to recognize the
-operating system you are using. If your script is old, overwrite
-config.guess and config.sub with the latest versions from:
+operating system you are using. If your script is old, overwrite *all*
+copies of config.guess and config.sub with the latest versions from:
 
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 and
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 If $0 has already been updated, send the following data and any
 information you think might be pertinent to config-patches@gnu.org to
@@ -1446,16 +1460,16 @@ hostinfo               = `(hostinfo) 2>/dev/null`
 /usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
 /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
 
-UNAME_MACHINE = ${UNAME_MACHINE}
-UNAME_RELEASE = ${UNAME_RELEASE}
-UNAME_SYSTEM  = ${UNAME_SYSTEM}
-UNAME_VERSION = ${UNAME_VERSION}
+UNAME_MACHINE = "$UNAME_MACHINE"
+UNAME_RELEASE = "$UNAME_RELEASE"
+UNAME_SYSTEM  = "$UNAME_SYSTEM"
+UNAME_VERSION = "$UNAME_VERSION"
 EOF
 
 exit 1
 
 # Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp)
 # time-stamp-start: "timestamp='"
 # time-stamp-format: "%:y-%02m-%02d"
 # time-stamp-end: "'"
index dd2ca93..9ccf09a 100644 (file)
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2016 Free Software Foundation, Inc.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
 
-timestamp='2016-11-04'
+timestamp='2018-03-08'
 
 # 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
@@ -15,7 +15,7 @@ timestamp='2016-11-04'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -33,7 +33,7 @@ timestamp='2016-11-04'
 # Otherwise, we print the canonical config type on stdout and succeed.
 
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
@@ -57,7 +57,7 @@ Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
 
 Canonicalize a configuration name.
 
-Operation modes:
+Options:
   -h, --help         print this help, then exit
   -t, --time-stamp   print date of last modification, then exit
   -v, --version      print version number, then exit
@@ -67,7 +67,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2016 Free Software Foundation, Inc.
+Copyright 1992-2018 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -94,7 +94,7 @@ while test $# -gt 0 ; do
 
     *local*)
        # First pass through any local machine types.
-       echo $1
+       echo "$1"
        exit ;;
 
     * )
@@ -112,7 +112,7 @@ esac
 
 # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
 # Here we must recognize all the valid KERNEL-OS combinations.
-maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+maybe_os=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
   linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
@@ -120,16 +120,16 @@ case $maybe_os in
   kopensolaris*-gnu* | cloudabi*-eabi* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
-    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
     ;;
   android-linux)
     os=-linux-android
-    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
     ;;
   *)
-    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
-    if [ $basic_machine != $1 ]
-    then os=`echo $1 | sed 's/.*-/-/'`
+    basic_machine=`echo "$1" | sed 's/-[^-]*$//'`
+    if [ "$basic_machine" != "$1" ]
+    then os=`echo "$1" | sed 's/.*-/-/'`
     else os=; fi
     ;;
 esac
@@ -178,44 +178,44 @@ case $os in
                ;;
        -sco6)
                os=-sco5v6
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -sco5)
                os=-sco3.2v5
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -sco4)
                os=-sco3.2v4
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -sco3.2.[4-9]*)
                os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -sco3.2v[4-9]*)
                # Don't forget version if it is 3.2v4 or newer.
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -sco5v6*)
                # Don't forget version if it is 3.2v4 or newer.
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -sco*)
                os=-sco3.2v2
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -udk*)
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -isc)
                os=-isc2.2
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -clix*)
                basic_machine=clipper-intergraph
                ;;
        -isc*)
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
                ;;
        -lynx*178)
                os=-lynxos178
@@ -227,10 +227,7 @@ case $os in
                os=-lynxos
                ;;
        -ptx*)
-               basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
-               ;;
-       -windowsnt*)
-               os=`echo $os | sed -e 's/windowsnt/winnt/'`
+               basic_machine=`echo "$1" | sed -e 's/86-.*/86-sequent/'`
                ;;
        -psos*)
                os=-psos
@@ -263,7 +260,7 @@ case $basic_machine in
        | fido | fr30 | frv | ft32 \
        | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
        | hexagon \
-       | i370 | i860 | i960 | ia64 \
+       | i370 | i860 | i960 | ia16 | ia64 \
        | ip2k | iq2000 \
        | k1om \
        | le32 | le64 \
@@ -299,7 +296,7 @@ case $basic_machine in
        | nios | nios2 | nios2eb | nios2el \
        | ns16k | ns32k \
        | open8 | or1k | or1knd | or32 \
-       | pdp10 | pdp11 | pj | pjl \
+       | pdp10 | pj | pjl \
        | powerpc | powerpc64 | powerpc64le | powerpcle \
        | pru \
        | pyramid \
@@ -315,7 +312,7 @@ case $basic_machine in
        | ubicom32 \
        | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
        | visium \
-       | we32k \
+       | wasm32 \
        | x86 | xc16x | xstormy16 | xtensa \
        | z8k | z80)
                basic_machine=$basic_machine-unknown
@@ -336,7 +333,7 @@ case $basic_machine in
                basic_machine=$basic_machine-unknown
                os=-none
                ;;
-       m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+       m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65)
                ;;
        ms1)
                basic_machine=mt-unknown
@@ -365,7 +362,7 @@ case $basic_machine in
          ;;
        # Object if more than one company name word.
        *-*-*)
-               echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+               echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
                exit 1
                ;;
        # Recognize the basic CPU types with company name.
@@ -388,7 +385,7 @@ case $basic_machine in
        | h8300-* | h8500-* \
        | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
        | hexagon-* \
-       | i*86-* | i860-* | i960-* | ia64-* \
+       | i*86-* | i860-* | i960-* | ia16-* | ia64-* \
        | ip2k-* | iq2000-* \
        | k1om-* \
        | le32-* | le64-* \
@@ -446,6 +443,7 @@ case $basic_machine in
        | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
        | vax-* \
        | visium-* \
+       | wasm32-* \
        | we32k-* \
        | x86-* | x86_64-* | xc16x-* | xps100-* \
        | xstormy16-* | xtensa*-* \
@@ -459,7 +457,7 @@ case $basic_machine in
        # Recognize the various machine names and aliases which stand
        # for a CPU type and a company and sometimes even an OS.
        386bsd)
-               basic_machine=i386-unknown
+               basic_machine=i386-pc
                os=-bsd
                ;;
        3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
@@ -493,7 +491,7 @@ case $basic_machine in
                basic_machine=x86_64-pc
                ;;
        amd64-*)
-               basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        amdahl)
                basic_machine=580-amdahl
@@ -538,7 +536,7 @@ case $basic_machine in
                os=-linux
                ;;
        blackfin-*)
-               basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                os=-linux
                ;;
        bluegene*)
@@ -546,13 +544,13 @@ case $basic_machine in
                os=-cnk
                ;;
        c54x-*)
-               basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        c55x-*)
-               basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        c6x-*)
-               basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        c90)
                basic_machine=c90-cray
@@ -641,7 +639,7 @@ case $basic_machine in
                basic_machine=rs6000-bull
                os=-bosx
                ;;
-       dpx2* | dpx2*-bull)
+       dpx2*)
                basic_machine=m68k-bull
                os=-sysv3
                ;;
@@ -650,7 +648,7 @@ case $basic_machine in
                os=$os"spe"
                ;;
        e500v[12]-*)
-               basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                os=$os"spe"
                ;;
        ebmon29k)
@@ -742,9 +740,6 @@ case $basic_machine in
        hp9k8[0-9][0-9] | hp8[0-9][0-9])
                basic_machine=hppa1.0-hp
                ;;
-       hppa-next)
-               os=-nextstep3
-               ;;
        hppaosf)
                basic_machine=hppa1.1-hp
                os=-osf
@@ -757,26 +752,26 @@ case $basic_machine in
                basic_machine=i370-ibm
                ;;
        i*86v32)
-               basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
                os=-sysv32
                ;;
        i*86v4*)
-               basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
                os=-sysv4
                ;;
        i*86v)
-               basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
                os=-sysv
                ;;
        i*86sol2)
-               basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+               basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
                os=-solaris2
                ;;
        i386mach)
                basic_machine=i386-mach
                os=-mach
                ;;
-       i386-vsta | vsta)
+       vsta)
                basic_machine=i386-unknown
                os=-vsta
                ;;
@@ -795,19 +790,16 @@ case $basic_machine in
                os=-sysv
                ;;
        leon-*|leon[3-9]-*)
-               basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'`
+               basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'`
                ;;
        m68knommu)
                basic_machine=m68k-unknown
                os=-linux
                ;;
        m68knommu-*)
-               basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                os=-linux
                ;;
-       m88k-omron*)
-               basic_machine=m88k-omron
-               ;;
        magnum | m3230)
                basic_machine=mips-mips
                os=-sysv
@@ -839,10 +831,10 @@ case $basic_machine in
                os=-mint
                ;;
        mips3*-*)
-               basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+               basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`
                ;;
        mips3*)
-               basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+               basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown
                ;;
        monitor)
                basic_machine=m68k-rom68k
@@ -861,7 +853,7 @@ case $basic_machine in
                os=-msdos
                ;;
        ms1-*)
-               basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
+               basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'`
                ;;
        msys)
                basic_machine=i686-pc
@@ -903,7 +895,7 @@ case $basic_machine in
                basic_machine=v70-nec
                os=-sysv
                ;;
-       next | m*-next )
+       next | m*-next)
                basic_machine=m68k-next
                case $os in
                    -nextstep* )
@@ -948,6 +940,12 @@ case $basic_machine in
        nsr-tandem)
                basic_machine=nsr-tandem
                ;;
+       nsv-tandem)
+               basic_machine=nsv-tandem
+               ;;
+       nsx-tandem)
+               basic_machine=nsx-tandem
+               ;;
        op50n-* | op60c-*)
                basic_machine=hppa1.1-oki
                os=-proelf
@@ -980,7 +978,7 @@ case $basic_machine in
                os=-linux
                ;;
        parisc-*)
-               basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                os=-linux
                ;;
        pbd)
@@ -996,7 +994,7 @@ case $basic_machine in
                basic_machine=i386-pc
                ;;
        pc98-*)
-               basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        pentium | p5 | k5 | k6 | nexgen | viac3)
                basic_machine=i586-pc
@@ -1011,16 +1009,16 @@ case $basic_machine in
                basic_machine=i786-pc
                ;;
        pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
-               basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        pentiumpro-* | p6-* | 6x86-* | athlon-*)
-               basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
-               basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        pentium4-*)
-               basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        pn)
                basic_machine=pn-gould
@@ -1030,23 +1028,23 @@ case $basic_machine in
        ppc | ppcbe)    basic_machine=powerpc-unknown
                ;;
        ppc-* | ppcbe-*)
-               basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        ppcle | powerpclittle)
                basic_machine=powerpcle-unknown
                ;;
        ppcle-* | powerpclittle-*)
-               basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        ppc64)  basic_machine=powerpc64-unknown
                ;;
-       ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+       ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        ppc64le | powerpc64little)
                basic_machine=powerpc64le-unknown
                ;;
        ppc64le-* | powerpc64little-*)
-               basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        ps2)
                basic_machine=i386-ibm
@@ -1100,17 +1098,10 @@ case $basic_machine in
        sequent)
                basic_machine=i386-sequent
                ;;
-       sh)
-               basic_machine=sh-hitachi
-               os=-hms
-               ;;
        sh5el)
                basic_machine=sh5le-unknown
                ;;
-       sh64)
-               basic_machine=sh64-unknown
-               ;;
-       sparclite-wrs | simso-wrs)
+       simso-wrs)
                basic_machine=sparclite-wrs
                os=-vxworks
                ;;
@@ -1129,7 +1120,7 @@ case $basic_machine in
                os=-sysv4
                ;;
        strongarm-* | thumb-*)
-               basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+               basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'`
                ;;
        sun2)
                basic_machine=m68000-sun
@@ -1251,6 +1242,9 @@ case $basic_machine in
                basic_machine=hppa1.1-winbond
                os=-proelf
                ;;
+       x64)
+               basic_machine=x86_64-pc
+               ;;
        xbox)
                basic_machine=i686-pc
                os=-mingw32
@@ -1259,20 +1253,12 @@ case $basic_machine in
                basic_machine=xps100-honeywell
                ;;
        xscale-* | xscalee[bl]-*)
-               basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+               basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'`
                ;;
        ymp)
                basic_machine=ymp-cray
                os=-unicos
                ;;
-       z8k-*-coff)
-               basic_machine=z8k-unknown
-               os=-sim
-               ;;
-       z80-*-coff)
-               basic_machine=z80-unknown
-               os=-sim
-               ;;
        none)
                basic_machine=none-none
                os=-none
@@ -1301,10 +1287,6 @@ case $basic_machine in
        vax)
                basic_machine=vax-dec
                ;;
-       pdp10)
-               # there are many clones, so DEC is not a safe bet
-               basic_machine=pdp10-unknown
-               ;;
        pdp11)
                basic_machine=pdp11-dec
                ;;
@@ -1314,9 +1296,6 @@ case $basic_machine in
        sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
                basic_machine=sh-unknown
                ;;
-       sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
-               basic_machine=sparc-sun
-               ;;
        cydra)
                basic_machine=cydra-cydrome
                ;;
@@ -1336,7 +1315,7 @@ case $basic_machine in
                # Make sure to match an already-canonicalized machine name.
                ;;
        *)
-               echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+               echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
                exit 1
                ;;
 esac
@@ -1344,10 +1323,10 @@ esac
 # Here we canonicalize certain aliases for manufacturers.
 case $basic_machine in
        *-digital*)
-               basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+               basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'`
                ;;
        *-commodore*)
-               basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+               basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'`
                ;;
        *)
                ;;
@@ -1358,8 +1337,8 @@ esac
 if [ x"$os" != x"" ]
 then
 case $os in
-       # First match some system type aliases
-       # that might get confused with valid system types.
+       # First match some system type aliases that might get confused
+       # with valid system types.
        # -solaris* is a basic system type, with this one exception.
        -auroraux)
                os=-auroraux
@@ -1370,18 +1349,19 @@ case $os in
        -solaris)
                os=-solaris2
                ;;
-       -svr4*)
-               os=-sysv4
-               ;;
        -unixware*)
                os=-sysv4.2uw
                ;;
        -gnu/linux*)
                os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
                ;;
-       # First accept the basic system types.
+       # es1800 is here to avoid being matched by es* (a different OS)
+       -es1800*)
+               os=-ose
+               ;;
+       # Now accept the basic system types.
        # The portable systems comes first.
-       # Each alternative MUST END IN A *, to match a version number.
+       # Each alternative MUST end in a * to match a version number.
        # -sysv* is not here because it comes later, after sysvr4.
        -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
              | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
@@ -1391,25 +1371,26 @@ case $os in
              | -aos* | -aros* | -cloudabi* | -sortix* \
              | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
              | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
-             | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
+             | -hiux* | -knetbsd* | -mirbsd* | -netbsd* \
              | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \
              | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
              | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
              | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
-             | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
-             | -chorusos* | -chorusrdb* | -cegcc* \
+             | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* | -hcos* \
+             | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \
              | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
              | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
              | -linux-newlib* | -linux-musl* | -linux-uclibc* \
              | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
-             | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+             | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* \
              | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
              | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
              | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
-             | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
+             | -morphos* | -superux* | -rtmk* | -windiss* \
              | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
              | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
-             | -onefs* | -tirtos* | -phoenix* | -fuchsia*)
+             | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \
+             | -midnightbsd*)
        # Remember, each alternative MUST END IN *, to match a version number.
                ;;
        -qnx*)
@@ -1426,12 +1407,12 @@ case $os in
        -nto*)
                os=`echo $os | sed -e 's|nto|nto-qnx|'`
                ;;
-       -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
-             | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+       -sim | -xray | -os68k* | -v88r* \
+             | -windows* | -osx | -abug | -netware* | -os9* \
              | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
                ;;
        -mac*)
-               os=`echo $os | sed -e 's|mac|macos|'`
+               os=`echo "$os" | sed -e 's|mac|macos|'`
                ;;
        -linux-dietlibc)
                os=-linux-dietlibc
@@ -1440,10 +1421,10 @@ case $os in
                os=`echo $os | sed -e 's|linux|linux-gnu|'`
                ;;
        -sunos5*)
-               os=`echo $os | sed -e 's|sunos5|solaris2|'`
+               os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
                ;;
        -sunos6*)
-               os=`echo $os | sed -e 's|sunos6|solaris3|'`
+               os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
                ;;
        -opened*)
                os=-openedition
@@ -1454,12 +1435,6 @@ case $os in
        -wince*)
                os=-wince
                ;;
-       -osfrose*)
-               os=-osfrose
-               ;;
-       -osf*)
-               os=-osf
-               ;;
        -utek*)
                os=-bsd
                ;;
@@ -1484,7 +1459,7 @@ case $os in
        -nova*)
                os=-rtmk-nova
                ;;
-       -ns2 )
+       -ns2)
                os=-nextstep2
                ;;
        -nsk*)
@@ -1506,7 +1481,7 @@ case $os in
        -oss*)
                os=-sysv3
                ;;
-       -svr4)
+       -svr4*)
                os=-sysv4
                ;;
        -svr3)
@@ -1521,24 +1496,28 @@ case $os in
        -ose*)
                os=-ose
                ;;
-       -es1800*)
-               os=-ose
-               ;;
-       -xenix)
-               os=-xenix
-               ;;
        -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
                os=-mint
                ;;
-       -aros*)
-               os=-aros
-               ;;
        -zvmoe)
                os=-zvmoe
                ;;
        -dicos*)
                os=-dicos
                ;;
+       -pikeos*)
+               # Until real need of OS specific support for
+               # particular features comes up, bare metal
+               # configurations are quite functional.
+               case $basic_machine in
+                   arm*)
+                       os=-eabi
+                       ;;
+                   *)
+                       os=-elf
+                       ;;
+               esac
+               ;;
        -nacl*)
                ;;
        -ios)
@@ -1548,7 +1527,7 @@ case $os in
        *)
                # Get rid of the `-' at the beginning of $os.
                os=`echo $os | sed 's/[^-]*-//'`
-               echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+               echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2
                exit 1
                ;;
 esac
@@ -1638,12 +1617,12 @@ case $basic_machine in
        sparc-* | *-sun)
                os=-sunos4.1.1
                ;;
+       pru-*)
+               os=-elf
+               ;;
        *-be)
                os=-beos
                ;;
-       *-haiku)
-               os=-haiku
-               ;;
        *-ibm)
                os=-aix
                ;;
@@ -1683,7 +1662,7 @@ case $basic_machine in
        m88k-omron*)
                os=-luna
                ;;
-       *-next )
+       *-next)
                os=-nextstep
                ;;
        *-sequent)
@@ -1698,9 +1677,6 @@ case $basic_machine in
        i370-*)
                os=-mvs
                ;;
-       *-next)
-               os=-nextstep3
-               ;;
        *-gould)
                os=-sysv
                ;;
@@ -1810,15 +1786,15 @@ case $basic_machine in
                                vendor=stratus
                                ;;
                esac
-               basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+               basic_machine=`echo "$basic_machine" | sed "s/unknown/$vendor/"`
                ;;
 esac
 
-echo $basic_machine$os
+echo "$basic_machine$os"
 exit
 
 # Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp)
 # time-stamp-start: "timestamp='"
 # time-stamp-format: "%:y-%02m-%02d"
 # time-stamp-end: "'"