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# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
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# 2000, 2001, 2002 Free Software Foundation, Inc.
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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trap 'rm -f $dummy.c $dummy.o $dummy.rel $dummy; exit 1' 1 2 15
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# CC_FOR_BUILD -- compiler used by this script.
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# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
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# compiler to aid in system detection is discouraged as it requires
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# temporary files to be created and, as you can see below, it is a
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# headache to deal with in a portable fashion.
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# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
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# use `HOST_CC' if defined, but it is deprecated.
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set_cc_for_build='case $CC_FOR_BUILD,$HOST_CC,$CC in
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,,) echo "int dummy(){}" > $dummy.c ;
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for c in cc gcc c89 ; do
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($c $dummy.c -c -o $dummy.o) >/dev/null 2>&1 ;
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if test $? = 0 ; then
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# This shell variable is my proudest work .. or something. --bje
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set_cc_for_build='tmpdir=${TMPDIR-/tmp}/config-guess-$$ ;
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(old=`umask` && umask 077 && mkdir $tmpdir && umask $old && unset old)
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|| (echo "$me: cannot create $tmpdir" >&2 && exit 1) ;
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dummy=$tmpdir/dummy ;
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files="$dummy.c $dummy.o $dummy.rel $dummy" ;
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trap '"'"'rm -f $files; rmdir $tmpdir; exit 1'"'"' 1 2 15 ;
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case $CC_FOR_BUILD,$HOST_CC,$CC in
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,,) echo "int x;" > $dummy.c ;
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for c in cc gcc c89 c99 ; do
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if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
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CC_FOR_BUILD="$c"; break ;
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rm -f $dummy.c $dummy.o $dummy.rel ;
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if test x"$CC_FOR_BUILD" = x ; then
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CC_FOR_BUILD=no_compiler_found ;
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,,*) CC_FOR_BUILD=$CC ;;
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,*,*) CC_FOR_BUILD=$HOST_CC ;;
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# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
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# (ghazi@noc.rutgers.edu 1994-08-24)
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# Note: NetBSD doesn't particularly care about the vendor
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# portion of the name. We always set it to "unknown".
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UNAME_MACHINE_ARCH=`(uname -p) 2>/dev/null` || \
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UNAME_MACHINE_ARCH=unknown
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sysctl="sysctl -n hw.machine_arch"
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UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
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/usr/sbin/$sysctl 2>/dev/null || echo unknown)`
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case "${UNAME_MACHINE_ARCH}" in
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armeb) machine=armeb-unknown ;;
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arm*) machine=arm-unknown ;;
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sh3el) machine=shl-unknown ;;
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sh3eb) machine=sh-unknown ;;
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release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
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# Debian GNU/NetBSD machines have a different userland, and
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# thus, need a distinct triplet. However, they do not need
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# kernel version information, so it can be replaced with a
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# suitable tag, in the style of linux-gnu.
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case "${UNAME_VERSION}" in
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release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
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# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
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# contains redundant information, the shorter form:
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# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
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echo pyramid-pyramid-svr4
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DRS?6000:UNIX_SV:4.2*:7*)
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case `/usr/bin/uname -p` in
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sparc) echo sparc-icl-nx7 && exit 0 ;;
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sun4H:SunOS:5.*:*)
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echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
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echo m68k-sun-sunos${UNAME_RELEASE}
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UNAME_RELEASE=`(head -1 /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
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UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
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test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
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case "`/bin/arch`" in
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$CC_FOR_BUILD $dummy.c -o $dummy \
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&& ./$dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
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&& rm -f $dummy.c $dummy && exit 0
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rm -f $dummy.c $dummy
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$CC_FOR_BUILD -o $dummy $dummy.c \
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&& $dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
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&& rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0
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rm -f $dummy.c $dummy && rmdir $tmpdir
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echo mips-mips-riscos${UNAME_RELEASE}
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Motorola:PowerMAX_OS:*:*)
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echo powerpc-motorola-powermax
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Motorola:*:4.3:PL8-*)
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echo powerpc-harris-powermax
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Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
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echo powerpc-harris-powermax
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Night_Hawk:Power_UNIX:*:*)
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echo powerpc-harris-powerunix
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$CC_FOR_BUILD $dummy.c -o $dummy && ./$dummy && rm -f $dummy.c $dummy && exit 0
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rm -f $dummy.c $dummy
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$CC_FOR_BUILD -o $dummy $dummy.c && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0
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rm -f $dummy.c $dummy && rmdir $tmpdir
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echo rs6000-ibm-aix3.2.5
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elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
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echo rs6000-ibm-aix3.2.4
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(CCOPTS= $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null) && HP_ARCH=`./$dummy`
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(CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
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if test -z "$HP_ARCH"; then HP_ARCH=hppa; fi
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rm -f $dummy.c $dummy
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rm -f $dummy.c $dummy && rmdir $tmpdir
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echo ${HP_ARCH}-hp-hpux${HPUX_REV}
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$CC_FOR_BUILD $dummy.c -o $dummy && ./$dummy && rm -f $dummy.c $dummy && exit 0
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rm -f $dummy.c $dummy
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$CC_FOR_BUILD -o $dummy $dummy.c && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0
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rm -f $dummy.c $dummy && rmdir $tmpdir
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echo unknown-hitachi-hiuxwe2
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9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
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echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
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echo cray2-cray-unicos
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F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
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FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
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FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
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echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
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echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
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# Determine whether the default compiler uses glibc.
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eval $set_cc_for_build
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sed 's/^ //' << EOF >$dummy.c
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#include <features.h>
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eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
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rm -f $dummy.c && rmdir $tmpdir
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echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`${LIBC:+-$LIBC}
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echo ${UNAME_MACHINE}-pc-cygwin
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echo ${UNAME_MACHINE}-pc-pw32
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echo i386-pc-interix3
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echo i586-pc-interix3
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[345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
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echo i${UNAME_MACHINE}-pc-mks
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i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
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# How do we know it's Interix rather than the generic POSIX subsystem?
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# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
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# UNAME_MACHINE based on the output of uname instead of i386?
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echo ${UNAME_MACHINE}-pc-uwin
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#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
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#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
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#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
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#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
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eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
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test x"${CPU}" != x && echo "${CPU}-pc-linux-gnu" && exit 0
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eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
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rm -f $dummy.c && rmdir $tmpdir
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test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0
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eval $set_cc_for_build
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sed 's/^ //' << EOF >$dummy.c
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#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
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#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
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eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
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rm -f $dummy.c && rmdir $tmpdir
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test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0
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echo powerpc-unknown-linux-gnu
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# The BFD linker knows what the default object file format is, so
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# first see if it will tell us. cd to the root directory to prevent
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# problems with other programs or directories called `ld' in the path.
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ld_supported_targets=`cd /; ld --help 2>&1 \
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# Set LC_ALL=C to ensure ld outputs messages in English.
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ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
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| sed -ne '/supported targets:/!d
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s/.*supported targets: *//
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#ifdef __INTEL_COMPILER
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eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
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rm -f $dummy.c && rmdir $tmpdir
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test x"${LIBC}" != x && echo "${UNAME_MACHINE}-pc-linux-${LIBC}" && exit 0
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test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0
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# Use sysv4.2uw... so that sysv4* matches it.
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echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
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# If we were able to find `uname', then EMX Unix compatibility
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# is probably installed.
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echo ${UNAME_MACHINE}-pc-os2-emx
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echo ${UNAME_MACHINE}-unknown-stop
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echo ${UNAME_MACHINE}-unknown-atheos
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i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
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echo i386-unknown-lynxos${UNAME_RELEASE}
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echo ${UNAME_MACHINE}-pc-msdosdjgpp
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i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
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UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
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if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
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UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
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echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
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elif /bin/uname -X 2>/dev/null >/dev/null ; then
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UNAME_REL=`(/bin/uname -X|egrep Release|sed -e 's/.*= //')`
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(/bin/uname -X|egrep i80486 >/dev/null) && UNAME_MACHINE=i486
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(/bin/uname -X|egrep '^Machine.*Pentium' >/dev/null) \
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UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
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(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
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(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
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&& UNAME_MACHINE=i586
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(/bin/uname -X|egrep '^Machine.*Pent ?II' >/dev/null) \
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(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
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&& UNAME_MACHINE=i686
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(/bin/uname -X|egrep '^Machine.*Pentium Pro' >/dev/null) \
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(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
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&& UNAME_MACHINE=i686
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echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
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echo ${UNAME_MACHINE}-pc-sysv32
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echo ${UNAME_MACHINE}-pc-msdosdjgpp
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# Left here for compatibility:
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# uname -m prints for DJGPP always 'pc', but it prints nothing about
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echo m68010-convergent-sysv
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mc68k:UNIX:SYSTEM5:3.51m)
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echo m68k-convergent-sysv
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M68*:*:R3V[567]*:*)
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test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;;
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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 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0)
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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)
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test -r /etc/.relid \
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&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
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echo `uname -p`-apple-darwin${UNAME_RELEASE}
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*:procnto*:*:* | *:QNX:[0123456789]*:*)
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if test "${UNAME_MACHINE}" = "x86pc"; then
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UNAME_PROCESSOR=`uname -p`
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if test "$UNAME_PROCESSOR" = "x86"; then
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UNAME_PROCESSOR=i386
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UNAME_MACHINE=pc
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echo `uname -p`-${UNAME_MACHINE}-nto-qnx
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echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
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echo i386-pc-qnx
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NSR-[GKLNPTVW]:NONSTOP_KERNEL:*:*)
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NSR-[DGKLNPTVW]:NONSTOP_KERNEL:*:*)
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echo nsr-tandem-nsk${UNAME_RELEASE}
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*:NonStop-UX:*:*)
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echo ${UNAME_MACHINE}-unknown-plan9
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# If we were able to find `uname', then EMX Unix compatibility
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# is probably installed.
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echo ${UNAME_MACHINE}-pc-os2-emx
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echo pdp10-unknown-tops10
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$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy && rm -f $dummy.c $dummy && exit 0
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rm -f $dummy.c $dummy
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$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0
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rm -f $dummy.c $dummy && rmdir $tmpdir
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# Apollos put the system type in the environment.