Make function intToSBigNat# preserve sign (fixes #14085)
[ghc.git] / config.guess
old mode 100644 (file)
new mode 100755 (executable)
index 4d0d905..07785f5
@@ -1,13 +1,12 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+#   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2003-06-17'
+timestamp='2017-07-19'
 
 # 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
+# the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful, but
@@ -16,24 +15,22 @@ timestamp='2003-06-17'
 # 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# along with this program; if not, see <http://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
 # configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Originally written by Per Bothner <per@bothner.com>.
-# Please send patches to <config-patches@gnu.org>.  Submit a context
-# diff and a properly formatted ChangeLog entry.
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
 #
-# This script attempts to guess a canonical system name similar to
-# config.sub.  If it succeeds, it prints the system name on stdout, and
-# exits with 0.  Otherwise, it exits with 1.
+# 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
 #
-# The plan is that this can be called by configure scripts if you
-# don't specify an explicit build system type.
+# Please send patches to <config-patches@gnu.org>.
+
 
 me=`echo "$0" | sed -e 's,.*/,,'`
 
@@ -53,8 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
-Free Software Foundation, Inc.
+Copyright 1992-2017 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."
@@ -66,11 +62,11 @@ Try \`$me --help' for more information."
 while test $# -gt 0 ; do
   case $1 in
     --time-stamp | --time* | -t )
-       echo "$timestamp" ; exit ;;
+       echo "$timestamp" ; exit ;;
     --version | -v )
-       echo "$version" ; exit ;;
+       echo "$version" ; exit ;;
     --help | --h* | -h )
-       echo "$usage"; exit ;;
+       echo "$usage"; exit ;;
     -- )     # Stop option processing
        shift; break ;;
     - )        # Use stdin as input.
@@ -104,7 +100,7 @@ set_cc_for_build='
 trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
 trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
 : ${TMPDIR=/tmp} ;
- { tmp=`(umask 077 && mktemp -d -q "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
  { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
  { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
  { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
@@ -123,7 +119,7 @@ case $CC_FOR_BUILD,$HOST_CC,$CC in
        ;;
  ,,*)   CC_FOR_BUILD=$CC ;;
  ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
-esac ;'
+esac ; set_cc_for_build= ;'
 
 # This is needed to find uname on a Pyramid OSx when run in the BSD universe.
 # (ghazi@noc.rutgers.edu 1994-08-24)
@@ -136,12 +132,33 @@ 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
+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 > $dummy.c
+       #include <features.h>
+       #if defined(__UCLIBC__)
+       LIBC=uclibc
+       #elif defined(__dietlibc__)
+       LIBC=dietlibc
+       #else
+       LIBC=gnu
+       #endif
+       EOF
+       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
+       ;;
+esac
+
 # Note: order is significant - the case branches are not exclusive.
 
 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     *:NetBSD:*:*)
        # NetBSD (nbsd) targets should (where applicable) match one or
-       # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+       # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
        # *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
        # switched to ELF, *-*-netbsd* would select the old
        # object file format.  This provides both forward
@@ -151,22 +168,33 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
        # Note: NetBSD doesn't particularly care about the vendor
        # portion of the name.  We always set it to "unknown".
        sysctl="sysctl -n hw.machine_arch"
-       UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
-           /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+       UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+           /sbin/$sysctl 2>/dev/null || \
+           /usr/sbin/$sysctl 2>/dev/null || \
+           echo unknown)`
        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}${endian}-unknown
+               ;;
            *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
        esac
        # The Operating System including object format, if it has switched
-       # to ELF recently, or will in the future.
+       # to ELF recently (or will in the future) and ABI.
        case "${UNAME_MACHINE_ARCH}" in
+           earm*)
+               os=netbsdelf
+               ;;
            arm*|i386|m68k|ns32k|sh3*|sparc|vax)
                eval $set_cc_for_build
                if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
-                       | grep __ELF__ >/dev/null
+                       | grep -q __ELF__
                then
                    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
                    # Return netbsd for either.  FIX?
@@ -176,7 +204,14 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
                fi
                ;;
            *)
-               os=netbsd
+               os=netbsd
+               ;;
+       esac
+       # Determine ABI tags.
+       case "${UNAME_MACHINE_ARCH}" in
+           earm*)
+               expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+               abi=`echo ${UNAME_MACHINE_ARCH} | sed -e "$expr"`
                ;;
        esac
        # The OS release
@@ -189,57 +224,50 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
                release='-gnu'
                ;;
            *)
-               release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+               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}"
-       exit 0 ;;
-    amiga:OpenBSD:*:*)
-       echo m68k-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    arc:OpenBSD:*:*)
-       echo mipsel-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    hp300:OpenBSD:*:*)
-       echo m68k-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    mac68k:OpenBSD:*:*)
-       echo m68k-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    macppc:OpenBSD:*:*)
-       echo powerpc-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    mvme68k:OpenBSD:*:*)
-       echo m68k-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    mvme88k:OpenBSD:*:*)
-       echo m88k-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    mvmeppc:OpenBSD:*:*)
-       echo powerpc-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    pmax:OpenBSD:*:*)
-       echo mipsel-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    sgi:OpenBSD:*:*)
-       echo mipseb-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    sun3:OpenBSD:*:*)
-       echo m68k-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
-    wgrisc:OpenBSD:*:*)
-       echo mipsel-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
+       echo "${machine}-${os}${release}${abi}"
+       exit ;;
+    *:Bitrig:*:*)
+       UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+       echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
+       exit ;;
     *:OpenBSD:*:*)
-       echo ${UNAME_MACHINE}-unknown-openbsd${UNAME_RELEASE}
-       exit 0 ;;
+       UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+       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}
+       exit ;;
+    *:ekkoBSD:*:*)
+       echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
+       exit ;;
+    *:SolidBSD:*:*)
+       echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
+       exit ;;
+    macppc:MirBSD:*:*)
+       echo powerpc-unknown-mirbsd${UNAME_RELEASE}
+       exit ;;
+    *:MirBSD:*:*)
+       echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
+       exit ;;
+    *:Sortix:*:*)
+       echo ${UNAME_MACHINE}-unknown-sortix
+       exit ;;
     alpha:OSF1:*:*)
-       if test $UNAME_RELEASE = "V4.0"; then
+       case $UNAME_RELEASE in
+       *4.0)
                UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
-       fi
+               ;;
+       *5.*)
+               UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+               ;;
+       esac
        # According to Compaq, /usr/sbin/psrinfo has been available on
        # OSF/1 and Tru64 systems produced since 1995.  I hope that
        # covers most systems running today.  This code pipes the CPU
@@ -247,72 +275,82 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
        ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
        case "$ALPHA_CPU_TYPE" in
            "EV4 (21064)")
-               UNAME_MACHINE="alpha" ;;
+               UNAME_MACHINE=alpha ;;
            "EV4.5 (21064)")
-               UNAME_MACHINE="alpha" ;;
+               UNAME_MACHINE=alpha ;;
            "LCA4 (21066/21068)")
-               UNAME_MACHINE="alpha" ;;
+               UNAME_MACHINE=alpha ;;
            "EV5 (21164)")
-               UNAME_MACHINE="alphaev5" ;;
+               UNAME_MACHINE=alphaev5 ;;
            "EV5.6 (21164A)")
-               UNAME_MACHINE="alphaev56" ;;
+               UNAME_MACHINE=alphaev56 ;;
            "EV5.6 (21164PC)")
-               UNAME_MACHINE="alphapca56" ;;
+               UNAME_MACHINE=alphapca56 ;;
            "EV5.7 (21164PC)")
-               UNAME_MACHINE="alphapca57" ;;
+               UNAME_MACHINE=alphapca57 ;;
            "EV6 (21264)")
-               UNAME_MACHINE="alphaev6" ;;
+               UNAME_MACHINE=alphaev6 ;;
            "EV6.7 (21264A)")
-               UNAME_MACHINE="alphaev67" ;;
+               UNAME_MACHINE=alphaev67 ;;
            "EV6.8CB (21264C)")
-               UNAME_MACHINE="alphaev68" ;;
+               UNAME_MACHINE=alphaev68 ;;
            "EV6.8AL (21264B)")
-               UNAME_MACHINE="alphaev68" ;;
+               UNAME_MACHINE=alphaev68 ;;
            "EV6.8CX (21264D)")
-               UNAME_MACHINE="alphaev68" ;;
+               UNAME_MACHINE=alphaev68 ;;
            "EV6.9A (21264/EV69A)")
-               UNAME_MACHINE="alphaev69" ;;
+               UNAME_MACHINE=alphaev69 ;;
            "EV7 (21364)")
-               UNAME_MACHINE="alphaev7" ;;
+               UNAME_MACHINE=alphaev7 ;;
            "EV7.9 (21364A)")
-               UNAME_MACHINE="alphaev79" ;;
+               UNAME_MACHINE=alphaev79 ;;
        esac
+       # A Pn.n version is a patched version.
        # A Vn.n version is a released version.
        # 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/^[VTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-       exit 0 ;;
-    Alpha*:OpenVMS:*:*)
-       echo alpha-hp-vms
-       exit 0 ;;
+       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 ;;
+       exit ;;
     21064:Windows_NT:50:3)
        echo alpha-dec-winnt3.5
-       exit ;;
+       exit ;;
     Amiga*:UNIX_System_V:4.0:*)
        echo m68k-unknown-sysv4
-       exit 0;;
+       exit ;;
     *:[Aa]miga[Oo][Ss]:*:*)
        echo ${UNAME_MACHINE}-unknown-amigaos
-       exit ;;
+       exit ;;
     *:[Mm]orph[Oo][Ss]:*:*)
        echo ${UNAME_MACHINE}-unknown-morphos
-       exit ;;
+       exit ;;
     *:OS/390:*:*)
        echo i370-ibm-openedition
-       exit 0 ;;
+       exit ;;
+    *:z/VM:*:*)
+       echo s390-ibm-zvmoe
+       exit ;;
+    *:OS400:*:*)
+       echo powerpc-ibm-os400
+       exit ;;
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
        echo arm-acorn-riscix${UNAME_RELEASE}
-       exit 0;;
+       exit ;;
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
+       echo arm-unknown-riscos
+       exit ;;
     SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
        echo hppa1.1-hitachi-hiuxmpp
-       exit 0;;
+       exit ;;
     Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
        # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
        if test "`(/bin/universe) 2>/dev/null`" = att ; then
@@ -320,32 +358,51 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
        else
                echo pyramid-pyramid-bsd
        fi
-       exit ;;
+       exit ;;
     NILE*:*:*:dcosx)
        echo pyramid-pyramid-svr4
-       exit ;;
+       exit ;;
     DRS?6000:unix:4.0:6*)
        echo sparc-icl-nx6
-       exit ;;
-    DRS?6000:UNIX_SV:4.2*:7*)
+       exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
        case `/usr/bin/uname -p` in
-           sparc) echo sparc-icl-nx7 && exit 0 ;;
+           sparc) echo sparc-icl-nx7; exit ;;
        esac ;;
+    s390x:SunOS:*:*)
+       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/[^.]*//'`
-       exit ;;
+       exit ;;
     sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
        echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-       exit 0 ;;
-    i86pc:SunOS:5.*:*)
-       echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-       exit 0 ;;
+       exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+       echo i386-pc-auroraux${UNAME_RELEASE}
+       exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+       eval $set_cc_for_build
+       SUN_ARCH=i386
+       # If there is a compiler, see if it is configured for 64-bit objects.
+       # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+       # This test works for both compilers.
+       if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+           if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+               (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+               grep IS_64BIT_ARCH >/dev/null
+           then
+               SUN_ARCH=x86_64
+           fi
+       fi
+       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 ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-       exit ;;
+       exit ;;
     sun4*:SunOS:*:*)
        case "`/usr/bin/arch -k`" in
            Series*|S4*)
@@ -354,13 +411,13 @@ case "${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 ${UNAME_RELEASE}|sed -e 's/-/_/'`
-       exit ;;
+       exit ;;
     sun3*:SunOS:*:*)
        echo m68k-sun-sunos${UNAME_RELEASE}
-       exit ;;
+       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}
@@ -369,10 +426,10 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
                echo sparc-sun-sunos${UNAME_RELEASE}
                ;;
        esac
-       exit ;;
+       exit ;;
     aushp:SunOS:*:*)
        echo sparc-auspex-sunos${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     # The situation for MiNT is a little confusing.  The machine name
     # can be virtually everything (everything which is not
     # "atarist" or "atariste" at least should have a processor
@@ -382,38 +439,41 @@ 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${UNAME_RELEASE}
-       exit ;;
+       echo m68k-atari-mint${UNAME_RELEASE}
+       exit ;;
     atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
        echo m68k-atari-mint${UNAME_RELEASE}
-        exit 0 ;;
+       exit ;;
     *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
-        echo m68k-atari-mint${UNAME_RELEASE}
-       exit ;;
+       echo m68k-atari-mint${UNAME_RELEASE}
+       exit ;;
     milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
-        echo m68k-milan-mint${UNAME_RELEASE}
-        exit 0 ;;
+       echo m68k-milan-mint${UNAME_RELEASE}
+       exit ;;
     hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
-        echo m68k-hades-mint${UNAME_RELEASE}
-        exit 0 ;;
+       echo m68k-hades-mint${UNAME_RELEASE}
+       exit ;;
     *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
-        echo m68k-unknown-mint${UNAME_RELEASE}
-        exit 0 ;;
+       echo m68k-unknown-mint${UNAME_RELEASE}
+       exit ;;
+    m68k:machten:*:*)
+       echo m68k-apple-machten${UNAME_RELEASE}
+       exit ;;
     powerpc:machten:*:*)
        echo powerpc-apple-machten${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     RISC*:Mach:*:*)
        echo mips-dec-mach_bsd4.3
-       exit ;;
+       exit ;;
     RISC*:ULTRIX:*:*)
        echo mips-dec-ultrix${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     VAX*:ULTRIX*:*:*)
        echo vax-dec-ultrix${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     2020:CLIX:*:* | 2430:CLIX:*:*)
        echo clipper-intergraph-clix${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     mips:*:*:UMIPS | mips:*:*:RISCos)
        eval $set_cc_for_build
        sed 's/^        //' << EOF >$dummy.c
@@ -437,35 +497,36 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
          exit (-1);
        }
 EOF
-       $CC_FOR_BUILD -o $dummy $dummy.c \
-         && $dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
-         && exit 0
+       $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}
-       exit ;;
+       exit ;;
     Motorola:PowerMAX_OS:*:*)
        echo powerpc-motorola-powermax
-       exit ;;
+       exit ;;
     Motorola:*:4.3:PL8-*)
        echo powerpc-harris-powermax
-       exit ;;
+       exit ;;
     Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
        echo powerpc-harris-powermax
-       exit ;;
+       exit ;;
     Night_Hawk:Power_UNIX:*:*)
        echo powerpc-harris-powerunix
-       exit ;;
+       exit ;;
     m88k:CX/UX:7*:*)
        echo m88k-harris-cxux7
-       exit ;;
+       exit ;;
     m88k:*:4*:R4*)
        echo m88k-motorola-sysv4
-       exit ;;
+       exit ;;
     m88k:*:3*:R3*)
        echo m88k-motorola-sysv3
-       exit ;;
+       exit ;;
     AViiON:dgux:*:*)
-        # DG/UX returns AViiON for all architectures
-        UNAME_PROCESSOR=`/usr/bin/uname -p`
+       # DG/UX returns AViiON for all architectures
+       UNAME_PROCESSOR=`/usr/bin/uname -p`
        if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
        then
            if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
@@ -478,29 +539,29 @@ EOF
        else
            echo i586-dg-dgux${UNAME_RELEASE}
        fi
-       exit ;;
+       exit ;;
     M88*:DolphinOS:*:*)        # DolphinOS (SVR3)
        echo m88k-dolphin-sysv3
-       exit ;;
+       exit ;;
     M88*:*:R3*:*)
        # Delta 88k system running SVR3
        echo m88k-motorola-sysv3
-       exit ;;
+       exit ;;
     XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
        echo m88k-tektronix-sysv3
-       exit ;;
+       exit ;;
     Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
        echo m68k-tektronix-bsd
-       exit ;;
+       exit ;;
     *:IRIX*:*:*)
        echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
-       exit ;;
+       exit ;;
     ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
-       echo romp-ibm-aix      # uname -m gives an 8 hex-code CPU id
-       exit 0 ;;              # Note that: echo "'`uname -s`'" gives 'AIX '
+       echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+       exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
     i*86:AIX:*:*)
        echo i386-ibm-aix
-       exit ;;
+       exit ;;
     ia64:AIX:*:*)
        if [ -x /usr/bin/oslevel ] ; then
                IBM_REV=`/usr/bin/oslevel`
@@ -508,7 +569,7 @@ EOF
                IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
        fi
        echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
-       exit ;;
+       exit ;;
     *:AIX:2:3)
        if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
                eval $set_cc_for_build
@@ -523,49 +584,54 @@ EOF
                        exit(0);
                        }
 EOF
-               $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0
-               echo rs6000-ibm-aix3.2.5
+               if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
+               then
+                       echo "$SYSTEM_NAME"
+               else
+                       echo rs6000-ibm-aix3.2.5
+               fi
        elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
                echo rs6000-ibm-aix3.2.4
        else
                echo rs6000-ibm-aix3.2
        fi
-       exit ;;
-    *:AIX:*:[45])
+       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
                IBM_ARCH=rs6000
        else
                IBM_ARCH=powerpc
        fi
-       if [ -x /usr/bin/oslevel ] ; then
-               IBM_REV=`/usr/bin/oslevel`
+       if [ -x /usr/bin/lslpp ] ; then
+               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}
        fi
        echo ${IBM_ARCH}-ibm-aix${IBM_REV}
-       exit ;;
+       exit ;;
     *:AIX:*:*)
        echo rs6000-ibm-aix
-       exit ;;
+       exit ;;
     ibmrt:4.4BSD:*|romp-ibm:BSD:*)
        echo romp-ibm-bsd4.4
-       exit ;;
+       exit ;;
     ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
        echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
-       exit 0 ;;                           # report: romp-ibm BSD 4.3
+       exit ;;                             # report: romp-ibm BSD 4.3
     *:BOSX:*:*)
        echo rs6000-bull-bosx
-       exit ;;
+       exit ;;
     DPX/2?00:B.O.S.:*:*)
        echo m68k-bull-sysv3
-       exit ;;
+       exit ;;
     9000/[34]??:4.3bsd:1.*:*)
        echo m68k-hp-bsd
-       exit ;;
+       exit ;;
     hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
        echo m68k-hp-bsd4.4
-       exit ;;
+       exit ;;
     9000/[34678]??:HP-UX:*:*)
        HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
        case "${UNAME_MACHINE}" in
@@ -574,74 +640,84 @@ EOF
            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 "${sc_cpu_version}" in
-                      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
-                      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
-                      532)                      # CPU_PA_RISC2_0
-                        case "${sc_kernel_bits}" in
-                          32) HP_ARCH="hppa2.0n" ;;
-                          64) HP_ARCH="hppa2.0w" ;;
-                         '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
-                        esac ;;
-                    esac
+                   sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+                   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
+                         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
+                   sed 's/^            //' << EOF >$dummy.c
 
-              #define _HPUX_SOURCE
-              #include <stdlib.h>
-              #include <unistd.h>
+               #define _HPUX_SOURCE
+               #include <stdlib.h>
+               #include <unistd.h>
 
-              int main ()
-              {
-              #if defined(_SC_KERNEL_BITS)
-                  long bits = sysconf(_SC_KERNEL_BITS);
-              #endif
-                  long cpu  = sysconf (_SC_CPU_VERSION);
+               int main ()
+               {
+               #if defined(_SC_KERNEL_BITS)
+                   long bits = sysconf(_SC_KERNEL_BITS);
+               #endif
+                   long cpu  = sysconf (_SC_CPU_VERSION);
 
-                  switch (cpu)
-               {
-               case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
-               case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
-               case CPU_PA_RISC2_0:
-              #if defined(_SC_KERNEL_BITS)
-                   switch (bits)
-                       {
-                       case 64: puts ("hppa2.0w"); break;
-                       case 32: puts ("hppa2.0n"); break;
-                       default: puts ("hppa2.0"); break;
-                       } break;
-              #else  /* !defined(_SC_KERNEL_BITS) */
-                   puts ("hppa2.0"); break;
-              #endif
-               default: puts ("hppa1.0"); break;
-               }
-                  exit (0);
-              }
+                   switch (cpu)
+                       {
+                       case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+                       case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+                       case CPU_PA_RISC2_0:
+               #if defined(_SC_KERNEL_BITS)
+                           switch (bits)
+                               {
+                               case 64: puts ("hppa2.0w"); break;
+                               case 32: puts ("hppa2.0n"); break;
+                               default: puts ("hppa2.0"); break;
+                               } break;
+               #else  /* !defined(_SC_KERNEL_BITS) */
+                           puts ("hppa2.0"); break;
+               #endif
+                       default: puts ("hppa1.0"); break;
+                       }
+                   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
-           # avoid double evaluation of $set_cc_for_build
-           test -n "$CC_FOR_BUILD" || eval $set_cc_for_build
-           if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E -) | grep __LP64__ >/dev/null
+           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
+           # generating 64-bit code.  GNU and HP use different nomenclature:
+           #
+           # $ CC_FOR_BUILD=cc ./config.guess
+           # => hppa2.0w-hp-hpux11.23
+           # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+           # => hppa64-hp-hpux11.23
+
+           if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
+               grep -q __LP64__
            then
-               HP_ARCH="hppa2.0w"
+               HP_ARCH=hppa2.0w
            else
-               HP_ARCH="hppa64"
+               HP_ARCH=hppa64
            fi
        fi
        echo ${HP_ARCH}-hp-hpux${HPUX_REV}
-       exit ;;
+       exit ;;
     ia64:HP-UX:*:*)
        HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
        echo ia64-hp-hpux${HPUX_REV}
-       exit ;;
+       exit ;;
     3050*:HI-UX:*:*)
        eval $set_cc_for_build
        sed 's/^        //' << EOF >$dummy.c
@@ -669,318 +745,358 @@ EOF
          exit (0);
        }
 EOF
-       $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0
+       $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
+               { echo "$SYSTEM_NAME"; exit; }
        echo unknown-hitachi-hiuxwe2
-       exit ;;
+       exit ;;
     9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
        echo hppa1.1-hp-bsd
-       exit ;;
+       exit ;;
     9000/8??:4.3bsd:*:*)
        echo hppa1.0-hp-bsd
-       exit ;;
+       exit ;;
     *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
        echo hppa1.0-hp-mpeix
-       exit ;;
+       exit ;;
     hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
        echo hppa1.1-hp-osf
-       exit ;;
+       exit ;;
     hp8??:OSF1:*:*)
        echo hppa1.0-hp-osf
-       exit ;;
+       exit ;;
     i*86:OSF1:*:*)
        if [ -x /usr/sbin/sysversion ] ; then
            echo ${UNAME_MACHINE}-unknown-osf1mk
        else
            echo ${UNAME_MACHINE}-unknown-osf1
        fi
-       exit ;;
+       exit ;;
     parisc*:Lites*:*:*)
        echo hppa1.1-hp-lites
-       exit ;;
+       exit ;;
     C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
        echo c1-convex-bsd
-        exit 0 ;;
+       exit ;;
     C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
        if getsysinfo -f scalar_acc
        then echo c32-convex-bsd
        else echo c2-convex-bsd
        fi
-        exit 0 ;;
+       exit ;;
     C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
        echo c34-convex-bsd
-        exit 0 ;;
+       exit ;;
     C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
        echo c38-convex-bsd
-        exit 0 ;;
+       exit ;;
     C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
        echo c4-convex-bsd
-        exit 0 ;;
+       exit ;;
     CRAY*Y-MP:*:*:*)
        echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       exit ;;
     CRAY*[A-Z]90:*:*:*)
        echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
        | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
              -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
              -e 's/\.[^.]*$/.X/'
-       exit ;;
+       exit ;;
     CRAY*TS:*:*:*)
        echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       exit ;;
     CRAY*T3E:*:*:*)
        echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       exit ;;
     CRAY*SV1:*:*:*)
        echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       exit ;;
     *:UNICOS/mp:*:*)
-       echo nv1-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' 
-       exit ;;
+       echo craynv-cray-unicosmp${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 ${UNAME_RELEASE} | sed -e 's/ /_/'`
-        echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-        exit 0 ;;
+       FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+       FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+       FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+       echo "${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 ${UNAME_RELEASE} | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
+       echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+       exit ;;
     i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
        echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     sparc*:BSD/OS:*:*)
        echo sparc-unknown-bsdi${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     *:BSD/OS:*:*)
        echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
-       exit 0 ;;
-    *:FreeBSD:*:*|*:GNU/FreeBSD:*:*)
-       # Determine whether the default compiler uses glibc.
-       eval $set_cc_for_build
-       sed 's/^        //' << EOF >$dummy.c
-       #include <features.h>
-       #if __GLIBC__ >= 2
-       LIBC=gnu
-       #else
-       LIBC=
-       #endif
-EOF
-       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
-       echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`${LIBC:+-$LIBC}
-       exit 0 ;;
+       exit ;;
+    *:FreeBSD:*:*)
+       UNAME_PROCESSOR=`/usr/bin/uname -p`
+       case ${UNAME_PROCESSOR} in
+           amd64)
+               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
-       exit 0 ;;
-    i*:MINGW*:*)
+       exit ;;
+    *:MINGW64*:*)
+       echo ${UNAME_MACHINE}-pc-mingw64
+       exit ;;
+    *:MINGW*:*)
        echo ${UNAME_MACHINE}-pc-mingw32
-       exit 0 ;;
+       exit ;;
+    *:MSYS*:*)
+       echo ${UNAME_MACHINE}-pc-msys
+       exit ;;
+    i*:windows32*:*)
+       # uname -m includes "-pc" on this system.
+       echo ${UNAME_MACHINE}-mingw32
+       exit ;;
     i*:PW*:*)
        echo ${UNAME_MACHINE}-pc-pw32
-       exit 0 ;;
-    x86:Interix*:[34]*)
-       echo i586-pc-interix${UNAME_RELEASE}|sed -e 's/\..*//'
-       exit 0 ;;
+       exit ;;
+    *:Interix*:*)
+       case ${UNAME_MACHINE} in
+           x86)
+               echo i586-pc-interix${UNAME_RELEASE}
+               exit ;;
+           authenticamd | genuineintel | EM64T)
+               echo x86_64-unknown-interix${UNAME_RELEASE}
+               exit ;;
+           IA64)
+               echo ia64-unknown-interix${UNAME_RELEASE}
+               exit ;;
+       esac ;;
     [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
        echo i${UNAME_MACHINE}-pc-mks
-       exit 0 ;;
+       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 ;;
+       exit ;;
     i*:UWIN*:*)
        echo ${UNAME_MACHINE}-pc-uwin
-       exit 0 ;;
+       exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+       echo x86_64-unknown-cygwin
+       exit ;;
     p*:CYGWIN*:*)
        echo powerpcle-unknown-cygwin
-       exit ;;
+       exit ;;
     prep*:SunOS:5.*:*)
        echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-       exit ;;
+       exit ;;
     *:GNU:*:*)
-       echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
-       exit 0 ;;
+       # the GNU system
+       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}
+       exit ;;
     i*86:Minix:*:*)
        echo ${UNAME_MACHINE}-pc-minix
-       exit 0 ;;
+       exit ;;
+    aarch64:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    aarch64_be:Linux:*:*)
+       UNAME_MACHINE=aarch64_be
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    alpha:Linux:*:*)
+       case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+         EV5)   UNAME_MACHINE=alphaev5 ;;
+         EV56)  UNAME_MACHINE=alphaev56 ;;
+         PCA56) UNAME_MACHINE=alphapca56 ;;
+         PCA57) UNAME_MACHINE=alphapca56 ;;
+         EV6)   UNAME_MACHINE=alphaev6 ;;
+         EV67)  UNAME_MACHINE=alphaev67 ;;
+         EV68*) UNAME_MACHINE=alphaev68 ;;
+       esac
+       objdump --private-headers /bin/sh | grep -q ld.so.1
+       if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
     arm*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-gnu
-       exit 0 ;;
+       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}
+       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
+           else
+               echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
+           fi
+       fi
+       exit ;;
+    avr32*:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
     cris:Linux:*:*)
-       echo cris-axis-linux-gnu
-       exit 0 ;;
+       echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+       exit ;;
+    crisv32:Linux:*:*)
+       echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+       exit ;;
+    e2k:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    frv:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    hexagon:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    i*86:Linux:*:*)
+       echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+       exit ;;
     ia64:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-gnu
-       exit 0 ;;
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    k1om:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    m32r*:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
     m68*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-gnu
-       exit ;;
-    mips:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
        eval $set_cc_for_build
        sed 's/^        //' << EOF >$dummy.c
        #undef CPU
-       #undef mips
-       #undef mipsel
+       #undef ${UNAME_MACHINE}
+       #undef ${UNAME_MACHINE}el
        #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-       CPU=mipsel
+       CPU=${UNAME_MACHINE}el
        #else
        #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-       CPU=mips
+       CPU=${UNAME_MACHINE}
        #else
        CPU=
        #endif
        #endif
 EOF
-       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
-       test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0
+       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
+       test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
        ;;
-    mips64:Linux:*:*)
-       eval $set_cc_for_build
-       sed 's/^        //' << EOF >$dummy.c
-       #undef CPU
-       #undef mips64
-       #undef mips64el
-       #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-       CPU=mips64el
-       #else
-       #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-       CPU=mips64
-       #else
-       CPU=
-       #endif
-       #endif
-EOF
-       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
-       test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0
-       ;;
-    ppc:Linux:*:*)
-       echo powerpc-unknown-linux-gnu
-       exit 0 ;;
-    ppc64:Linux:*:*)
-       echo powerpc64-unknown-linux-gnu
-       exit 0 ;;
-    alpha:Linux:*:*)
-       case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
-         EV5)   UNAME_MACHINE=alphaev5 ;;
-         EV56)  UNAME_MACHINE=alphaev56 ;;
-         PCA56) UNAME_MACHINE=alphapca56 ;;
-         PCA57) UNAME_MACHINE=alphapca56 ;;
-         EV6)   UNAME_MACHINE=alphaev6 ;;
-         EV67)  UNAME_MACHINE=alphaev67 ;;
-         EV68*) UNAME_MACHINE=alphaev68 ;;
-        esac
-       objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
-       if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
-       echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
-       exit 0 ;;
+    mips64el:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    openrisc*:Linux:*:*)
+       echo or1k-unknown-linux-${LIBC}
+       exit ;;
+    or32:Linux:*:* | or1k*:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    padre:Linux:*:*)
+       echo sparc-unknown-linux-${LIBC}
+       exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+       echo hppa64-unknown-linux-${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-gnu ;;
-         PA8*) echo hppa2.0-unknown-linux-gnu ;;
-         *)    echo hppa-unknown-linux-gnu ;;
+         PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+         PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+         *)    echo hppa-unknown-linux-${LIBC} ;;
        esac
-       exit 0 ;;
-    parisc64:Linux:*:* | hppa64:Linux:*:*)
-       echo hppa64-unknown-linux-gnu
-       exit 0 ;;
+       exit ;;
+    ppc64:Linux:*:*)
+       echo powerpc64-unknown-linux-${LIBC}
+       exit ;;
+    ppc:Linux:*:*)
+       echo powerpc-unknown-linux-${LIBC}
+       exit ;;
+    ppc64le:Linux:*:*)
+       echo powerpc64le-unknown-linux-${LIBC}
+       exit ;;
+    ppcle:Linux:*:*)
+       echo powerpcle-unknown-linux-${LIBC}
+       exit ;;
+    riscv32:Linux:*:* | riscv64:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
-       echo ${UNAME_MACHINE}-ibm-linux
-       exit ;;
+       echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
+       exit ;;
     sh64*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-gnu
-       exit ;;
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
     sh*:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-gnu
-       exit ;;
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
-       echo ${UNAME_MACHINE}-unknown-linux-gnu
-       exit 0 ;;
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    tile*:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
+    vax:Linux:*:*)
+       echo ${UNAME_MACHINE}-dec-linux-${LIBC}
+       exit ;;
     x86_64:Linux:*:*)
-       echo x86_64-unknown-linux-gnu
-       exit 0 ;;
-    i*86:Linux:*:*)
-       # The BFD linker knows what the default object file format is, so
-       # first see if it will tell us. cd to the root directory to prevent
-       # problems with other programs or directories called `ld' in the path.
-       # Set LC_ALL=C to ensure ld outputs messages in English.
-       ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
-                        | sed -ne '/supported targets:/!d
-                                   s/[         ][      ]*/ /g
-                                   s/.*supported targets: *//
-                                   s/ .*//
-                                   p'`
-        case "$ld_supported_targets" in
-         elf32-i386)
-               TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
-               ;;
-         a.out-i386-linux)
-               echo "${UNAME_MACHINE}-pc-linux-gnuaout"
-               exit 0 ;;
-         coff-i386)
-               echo "${UNAME_MACHINE}-pc-linux-gnucoff"
-               exit 0 ;;
-         "")
-               # Either a pre-BFD a.out linker (linux-gnuoldld) or
-               # one that does not give us useful --help.
-               echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
-               exit 0 ;;
-       esac
-       # Determine whether the default compiler is a.out or elf
-       eval $set_cc_for_build
-       sed 's/^        //' << EOF >$dummy.c
-       #include <features.h>
-       #ifdef __ELF__
-       # ifdef __GLIBC__
-       #  if __GLIBC__ >= 2
-       LIBC=gnu
-       #  else
-       LIBC=gnulibc1
-       #  endif
-       # else
-       LIBC=gnulibc1
-       # endif
-       #else
-       #ifdef __INTEL_COMPILER
-       LIBC=gnu
-       #else
-       LIBC=gnuaout
-       #endif
-       #endif
-EOF
-       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
-       test x"${LIBC}" != x && echo "${UNAME_MACHINE}-pc-linux-${LIBC}" && exit 0
-       test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0
-       ;;
+       echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+       exit ;;
+    xtensa*:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+       exit ;;
     i*86:DYNIX/ptx:4*:*)
        # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
        # earlier versions are messed up and put the nodename in both
        # sysname and nodename.
        echo i386-sequent-sysv4
-       exit ;;
+       exit ;;
     i*86:UNIX_SV:4.2MP:2.*)
-        # Unixware is an offshoot of SVR4, but it has its own version
-        # number series starting with 2...
-        # I am not positive that other SVR4 systems won't match this,
+       # Unixware is an offshoot of SVR4, but it has its own version
+       # number series starting with 2...
+       # 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.
+       # Use sysv4.2uw... so that sysv4* matches it.
        echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
-       exit ;;
+       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
-       exit ;;
+       exit ;;
     i*86:XTS-300:*:STOP)
        echo ${UNAME_MACHINE}-unknown-stop
-       exit ;;
+       exit ;;
     i*86:atheos:*:*)
        echo ${UNAME_MACHINE}-unknown-atheos
-       exit 0 ;;
-    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
+       exit ;;
+    i*86: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}
-       exit ;;
+       exit ;;
     i*86:*DOS:*:*)
        echo ${UNAME_MACHINE}-pc-msdosdjgpp
-       exit ;;
+       exit ;;
     i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
        UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
        if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
@@ -988,15 +1104,16 @@ EOF
        else
                echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
        fi
-       exit 0 ;;
-    i*86:*:5:[78]*)
+       exit ;;
+    i*86:*:5:[678]*)
+       # UnixWare 7.x, OpenUNIX and OpenServer 6.
        case `/bin/uname -X | grep "^Machine"` in
            *486*)           UNAME_MACHINE=i486 ;;
            *Pentium)        UNAME_MACHINE=i586 ;;
            *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
        esac
        echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
-       exit ;;
+       exit ;;
     i*86:*:3.2:*)
        if test -f /usr/options/cb.name; then
                UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
@@ -1014,73 +1131,86 @@ EOF
        else
                echo ${UNAME_MACHINE}-pc-sysv32
        fi
-       exit ;;
+       exit ;;
     pc:*:*:*)
        # Left here for compatibility:
-        # uname -m prints for DJGPP always 'pc', but it prints nothing about
-        # the processor, so we play safe by assuming i386.
-       echo i386-pc-msdosdjgpp
-        exit 0 ;;
+       # uname -m prints for DJGPP always 'pc', but it prints nothing about
+       # the processor, so we play safe by assuming i586.
+       # Note: whatever this is, it MUST be the same as what config.sub
+       # prints for the "djgpp" host, or else GDB configure will decide that
+       # this is a cross-build.
+       echo i586-pc-msdosdjgpp
+       exit ;;
     Intel:Mach:3*:*)
        echo i386-pc-mach3
-       exit ;;
+       exit ;;
     paragon:*:*:*)
        echo i860-intel-osf1
-       exit ;;
+       exit ;;
     i860:*:4.*:*) # i860-SVR4
        if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
          echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
        else # Add other i860-SVR4 vendors below as they are discovered.
          echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
        fi
-       exit ;;
+       exit ;;
     mini*:CTIX:SYS*5:*)
        # "miniframe"
        echo m68010-convergent-sysv
-       exit ;;
+       exit ;;
     mc68k:UNIX:SYSTEM5:3.51m)
        echo m68k-convergent-sysv
-       exit ;;
+       exit ;;
     M680?0:D-NIX:5.3:*)
        echo m68k-diab-dnix
-       exit ;;
-    M68*:*:R3V[567]*:*)
-       test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;;
-    3[34]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0)
+       exit ;;
+    M68*:*:R3V[5678]*:*)
+       test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
        OS_REL=''
        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${OS_REL} && exit 0
+         && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
        /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
-         && echo i586-ncr-sysv4.3${OS_REL} && exit 0 ;;
+         && { echo i586-ncr-sysv4.3${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 0 ;;
+       /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+         && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+       OS_REL='.3'
+       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${OS_REL}; exit; }
+       /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+           && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
+       /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+           && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
     m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
        echo m68k-unknown-lynxos${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     mc68030:UNIX_System_V:4.*:*)
        echo m68k-atari-sysv4
-       exit ;;
+       exit ;;
     TSUNAMI:LynxOS:2.*:*)
        echo sparc-unknown-lynxos${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     rs6000:LynxOS:2.*:*)
        echo rs6000-unknown-lynxos${UNAME_RELEASE}
-       exit ;;
-    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
+       exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
        echo powerpc-unknown-lynxos${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     SM[BE]S:UNIX_SV:*:*)
        echo mips-dde-sysv${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     RM*:ReliantUNIX-*:*:*)
        echo mips-sni-sysv4
-       exit ;;
+       exit ;;
     RM*:SINIX-*:*:*)
        echo mips-sni-sysv4
-       exit ;;
+       exit ;;
     *:SINIX-*:*:*)
        if uname -p 2>/dev/null >/dev/null ; then
                UNAME_MACHINE=`(uname -p) 2>/dev/null`
@@ -1088,288 +1218,227 @@ EOF
        else
                echo ns32k-sni-sysv
        fi
-       exit ;;
-    PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
-                      # says <Richard.M.Bartel@ccMail.Census.GOV>
-        echo i586-unisys-sysv4
-        exit 0 ;;
+       exit ;;
+    PENTIUM:*:4.0*:*)  # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+                       # says <Richard.M.Bartel@ccMail.Census.GOV>
+       echo i586-unisys-sysv4
+       exit ;;
     *:UNIX_System_V:4*:FTX*)
        # From Gerald Hewes <hewes@openmarket.com>.
        # How about differentiating between stratus architectures? -djm
        echo hppa1.1-stratus-sysv4
-       exit ;;
+       exit ;;
     *:*:*:FTX*)
        # From seanf@swdc.stratus.com.
        echo i860-stratus-sysv4
-       exit 0 ;;
+       exit ;;
+    i*86:VOS:*:*)
+       # From Paul.Green@stratus.com.
+       echo ${UNAME_MACHINE}-stratus-vos
+       exit ;;
     *:VOS:*:*)
        # From Paul.Green@stratus.com.
        echo hppa1.1-stratus-vos
-       exit ;;
+       exit ;;
     mc68*:A/UX:*:*)
        echo m68k-apple-aux${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     news*:NEWS-OS:6*:*)
        echo mips-sony-newsos6
-       exit ;;
+       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 0 ;;
+       exit ;;
     BeBox:BeOS:*:*)    # BeOS running on hardware made by Be, PPC only.
        echo powerpc-be-beos
-       exit ;;
+       exit ;;
     BeMac:BeOS:*:*)    # BeOS running on Mac or Mac clone, PPC only.
        echo powerpc-apple-beos
-       exit ;;
+       exit ;;
     BePC:BeOS:*:*)     # BeOS running on Intel PC compatible.
        echo i586-pc-beos
-       exit 0 ;;
+       exit ;;
+    BePC:Haiku:*:*)    # Haiku running on Intel PC compatible.
+       echo i586-pc-haiku
+       exit ;;
+    x86_64:Haiku:*:*)
+       echo x86_64-unknown-haiku
+       exit ;;
     SX-4:SUPER-UX:*:*)
        echo sx4-nec-superux${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     SX-5:SUPER-UX:*:*)
        echo sx5-nec-superux${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     SX-6:SUPER-UX:*:*)
        echo sx6-nec-superux${UNAME_RELEASE}
-       exit 0 ;;
+       exit ;;
+    SX-7:SUPER-UX:*:*)
+       echo sx7-nec-superux${UNAME_RELEASE}
+       exit ;;
+    SX-8:SUPER-UX:*:*)
+       echo sx8-nec-superux${UNAME_RELEASE}
+       exit ;;
+    SX-8R:SUPER-UX:*:*)
+       echo sx8r-nec-superux${UNAME_RELEASE}
+       exit ;;
+    SX-ACE:SUPER-UX:*:*)
+       echo sxace-nec-superux${UNAME_RELEASE}
+       exit ;;
     Power*:Rhapsody:*:*)
        echo powerpc-apple-rhapsody${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     *:Rhapsody:*:*)
        echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     *:Darwin:*:*)
-       case `uname -p` in
-           *86) UNAME_PROCESSOR=i686 ;;
-           powerpc) UNAME_PROCESSOR=powerpc ;;
-       esac
+       UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+       eval $set_cc_for_build
+       if test "$UNAME_PROCESSOR" = unknown ; then
+           UNAME_PROCESSOR=powerpc
+       fi
+       if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
+           if [ "$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
+               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
+           # that puts up a graphical alert prompting to install
+           # developer tools.  Any system running Mac OS X 10.7 or
+           # later (Darwin 11 and later) is required to have a 64-bit
+           # processor. This is not true of the ARM version of Darwin
+           # that Apple uses in portable devices.
+           UNAME_PROCESSOR=x86_64
+       fi
        echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
        UNAME_PROCESSOR=`uname -p`
-       if test "$UNAME_PROCESSOR" = "x86"; then
+       if test "$UNAME_PROCESSOR" = x86; then
                UNAME_PROCESSOR=i386
                UNAME_MACHINE=pc
        fi
        echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     *:QNX:*:4*)
        echo i386-pc-qnx
-       exit 0 ;;
-    NSR-[DGKLNPTVW]:NONSTOP_KERNEL:*:*)
+       exit ;;
+    NEO-*:NONSTOP_KERNEL:*:*)
+       echo neo-tandem-nsk${UNAME_RELEASE}
+       exit ;;
+    NSE-*:NONSTOP_KERNEL:*:*)
+       echo nse-tandem-nsk${UNAME_RELEASE}
+       exit ;;
+    NSR-*:NONSTOP_KERNEL:*:*)
        echo nsr-tandem-nsk${UNAME_RELEASE}
-       exit 0 ;;
+       exit ;;
+    NSX-*:NONSTOP_KERNEL:*:*)
+       echo nsx-tandem-nsk${UNAME_RELEASE}
+       exit ;;
     *:NonStop-UX:*:*)
        echo mips-compaq-nonstopux
-       exit ;;
+       exit ;;
     BS2000:POSIX*:*:*)
        echo bs2000-siemens-sysv
-       exit ;;
+       exit ;;
     DS/*:UNIX_System_V:*:*)
        echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
-       exit ;;
+       exit ;;
     *:Plan9:*:*)
        # "uname -m" is not consistent, so use $cputype instead. 386
        # is converted to i386 for consistency with other x86
        # operating systems.
-       if test "$cputype" = "386"; then
+       if test "$cputype" = 386; then
            UNAME_MACHINE=i386
        else
            UNAME_MACHINE="$cputype"
        fi
        echo ${UNAME_MACHINE}-unknown-plan9
-       exit ;;
+       exit ;;
     *:TOPS-10:*:*)
        echo pdp10-unknown-tops10
-       exit ;;
+       exit ;;
     *:TENEX:*:*)
        echo pdp10-unknown-tenex
-       exit ;;
+       exit ;;
     KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
        echo pdp10-dec-tops20
-       exit ;;
+       exit ;;
     XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
        echo pdp10-xkl-tops20
-       exit ;;
+       exit ;;
     *:TOPS-20:*:*)
        echo pdp10-unknown-tops20
-       exit ;;
+       exit ;;
     *:ITS:*:*)
        echo pdp10-unknown-its
-       exit ;;
+       exit ;;
     SEI:*:*:SEIUX)
-        echo mips-sei-seiux${UNAME_RELEASE}
-       exit 0 ;;
+       echo mips-sei-seiux${UNAME_RELEASE}
+       exit ;;
+    *:DragonFly:*:*)
+       echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+       exit ;;
+    *:*VMS:*:*)
+       UNAME_MACHINE=`(uname -p) 2>/dev/null`
+       case "${UNAME_MACHINE}" in
+           A*) echo alpha-dec-vms ; exit ;;
+           I*) echo ia64-dec-vms ; exit ;;
+           V*) echo vax-dec-vms ; exit ;;
+       esac ;;
+    *:XENIX:*:SysV)
+       echo i386-pc-xenix
+       exit ;;
+    i*86:skyos:*:*)
+       echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE} | sed -e 's/ .*$//'`
+       exit ;;
+    i*86:rdos:*:*)
+       echo ${UNAME_MACHINE}-pc-rdos
+       exit ;;
+    i*86:AROS:*:*)
+       echo ${UNAME_MACHINE}-pc-aros
+       exit ;;
+    x86_64:VMkernel:*:*)
+       echo ${UNAME_MACHINE}-unknown-esx
+       exit ;;
+    amd64:Isilon\ OneFS:*:*)
+       echo x86_64-unknown-onefs
+       exit ;;
 esac
 
-#echo '(No uname command or uname output not recognized.)' 1>&2
-#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
-
-eval $set_cc_for_build
-cat >$dummy.c <<EOF
-#ifdef _SEQUENT_
-# include <sys/types.h>
-# include <sys/utsname.h>
-#endif
-main ()
-{
-#if defined (sony)
-#if defined (MIPSEB)
-  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
-     I don't know....  */
-  printf ("mips-sony-bsd\n"); exit (0);
-#else
-#include <sys/param.h>
-  printf ("m68k-sony-newsos%s\n",
-#ifdef NEWSOS4
-          "4"
-#else
-         ""
-#endif
-         ); exit (0);
-#endif
-#endif
-
-#if defined (__arm) && defined (__acorn) && defined (__unix)
-  printf ("arm-acorn-riscix"); exit (0);
-#endif
-
-#if defined (hp300) && !defined (hpux)
-  printf ("m68k-hp-bsd\n"); exit (0);
-#endif
-
-#if defined (NeXT)
-#if !defined (__ARCHITECTURE__)
-#define __ARCHITECTURE__ "m68k"
-#endif
-  int version;
-  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
-  if (version < 4)
-    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
-  else
-    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
-  exit (0);
-#endif
-
-#if defined (MULTIMAX) || defined (n16)
-#if defined (UMAXV)
-  printf ("ns32k-encore-sysv\n"); exit (0);
-#else
-#if defined (CMU)
-  printf ("ns32k-encore-mach\n"); exit (0);
-#else
-  printf ("ns32k-encore-bsd\n"); exit (0);
-#endif
-#endif
-#endif
-
-#if defined (__386BSD__)
-  printf ("i386-pc-bsd\n"); exit (0);
-#endif
-
-#if defined (sequent)
-#if defined (i386)
-  printf ("i386-sequent-dynix\n"); exit (0);
-#endif
-#if defined (ns32000)
-  printf ("ns32k-sequent-dynix\n"); exit (0);
-#endif
-#endif
-
-#if defined (_SEQUENT_)
-    struct utsname un;
-
-    uname(&un);
-
-    if (strncmp(un.version, "V2", 2) == 0) {
-       printf ("i386-sequent-ptx2\n"); exit (0);
-    }
-    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
-       printf ("i386-sequent-ptx1\n"); exit (0);
-    }
-    printf ("i386-sequent-ptx\n"); exit (0);
-
-#endif
-
-#if defined (vax)
-# if !defined (ultrix)
-#  include <sys/param.h>
-#  if defined (BSD)
-#   if BSD == 43
-      printf ("vax-dec-bsd4.3\n"); exit (0);
-#   else
-#    if BSD == 199006
-      printf ("vax-dec-bsd4.3reno\n"); exit (0);
-#    else
-      printf ("vax-dec-bsd\n"); exit (0);
-#    endif
-#   endif
-#  else
-    printf ("vax-dec-bsd\n"); exit (0);
-#  endif
-# else
-    printf ("vax-dec-ultrix\n"); exit (0);
-# endif
-#endif
-
-#if defined (alliant) && defined (i860)
-  printf ("i860-alliant-bsd\n"); exit (0);
-#endif
-
-  exit (1);
-}
-EOF
-
-$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && $dummy && exit 0
-
-# Apollos put the system type in the environment.
-
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; }
-
-# Convex versions that predate uname can use getsysinfo(1)
-
-if [ -x /usr/convex/getsysinfo ]
-then
-    case `getsysinfo -f cpu_type` in
-    c1*)
-       echo c1-convex-bsd
-       exit 0 ;;
-    c2*)
-       if getsysinfo -f scalar_acc
-       then echo c32-convex-bsd
-       else echo c2-convex-bsd
-       fi
-       exit 0 ;;
-    c34*)
-       echo c34-convex-bsd
-       exit 0 ;;
-    c38*)
-       echo c38-convex-bsd
-       exit 0 ;;
-    c4*)
-       echo c4-convex-bsd
-       exit 0 ;;
-    esac
-fi
-
 cat >&2 <<EOF
 $0: unable to guess system type
 
-This script, last modified $timestamp, has failed to recognize
-the operating system you are using. It is advised that you
-download the most up to date version of the config scripts from
+This script (version $timestamp), has failed to recognize the
+operating system you are using. If your script is old, overwrite *all*
+copies of config.guess and config.sub with the latest versions from:
 
-    ftp://ftp.gnu.org/pub/gnu/config/
+  http://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
 
-If the version you run ($0) is already up to date, please
-send the following data and any information you think might be
-pertinent to <config-patches@gnu.org> in order to provide the needed
-information to handle your system.
+If $0 has already been updated, send the following data and any
+information you think might be pertinent to config-patches@gnu.org to
+provide the necessary information to handle your system.
 
 config.guess timestamp = $timestamp