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# For some build environments, file system hierarchy, style and
# filename constraints are different for host CL and target SBCL. In
# that case, targetpath and hostpath should be set to file name
# conversion commands or shell functions.
#

targetpath=${SBCL_ENV_TARGETPATH:-"echo -n"}
hostpath=${SBCL_ENV_HOSTPATH:-"echo -n"}
devnull=/dev/null

# Cygwin and MSYS set OSTYPE by themselves (hence a strange name that
# I wouldn't choose but have to accept). For "combined cross-native"
# builds with e.g. Linux host and wine environment, OSTYPE has to be
# set manually.

if [ "$OSTYPE" = "cygwin" -o "$OSTYPE" = "msys" -o "$OSTYPE" = "wine" \
     -o -n "$windir" ] ;
then
    definstallroot="${PROGRAMFILES:-C:/Program Files}/Steel Bank Common Lisp/"
    installroot=${SBCL_ENV_INSTALL_ROOT:-$definstallroot}
    runtime=sbcl.exe
    sbcl_os=win32
    sbcl_arch=${SBCL_ARCH:-x86}
    case "$OSTYPE" in
cygwin)
targetpath=${SBCL_ENV_TARGETPATH:-"env TERM=dumb cygpath -w"}
hostpath=${SBCL_ENV_HOSTPATH:-"cygpath -u"}
lncp="ln -s"
;;
wine)
targetpath=${SBCL_ENV_TARGETPATH:-"env TERM=dumb winepath -w"}
hostpath=${SBCL_ENV_HOSTPATH:-"env TERM=dumb winepath -u"}
lncp="ln -s"
# Temporary workaround for some "smart" change in
# wine-1.3.12: "console subsystem" programs started to
# output some terminal escape garbage before other output,
# even if redirected to a pipe, file or socket. It breaks
# "hello, world" -- surely there is an award for such
# things!
#
# What's fortunate and even convenient, though: wine
# doesn't show its new talents when
TERM=dumb
# so we
export TERM
;;
*)
lncp="cp -r"
;;
    esac
else
    installroot=${SBCL_ENV_INSTALL_ROOT:-"/usr/local"}
    runtime=sbcl
    lncp="ln -s"
fi

if [ -z "$sbcl_os" ] ; then
    case `uname` in
Linux)
            sbcl_os="linux"
            ;;
OSF1)
        # it's changed name twice since it was called OSF/1: clearly
        # the marketers forgot to tell the engineers about Digital Unix
        # _or_ OSF/1 ...
            sbcl_os="osf1"
            ;;
*BSD)
            case `uname` in
FreeBSD)
                    sbcl_os="freebsd"
                    ;;
OpenBSD)
                    sbcl_os="openbsd"
                    ;;
NetBSD)
                    sbcl_os="netbsd"
                    ;;
*)
                    echo unsupported BSD variant: `uname`
                    exit 1
                    ;;
            esac
            ;;
Darwin)
            sbcl_os="darwin"
            ;;
SunOS)
            sbcl_os="sunos"
            ;;
CYGWIN* | WindowsNT | MINGW*)
            sbcl_os="win32"
            ;;
HP-UX)
            sbcl_os="hpux"
            ;;
*)
            echo unsupported OS type: `uname`
            exit 1
            ;;
    esac
    case `uname -m` in
*86) guessed_sbcl_arch=x86 ;;
i86pc) guessed_sbcl_arch=x86 ;;
*x86_64) guessed_sbcl_arch=x86-64 ;;
amd64) guessed_sbcl_arch=x86-64 ;;
[Aa]lpha) guessed_sbcl_arch=alpha ;;
sparc*) guessed_sbcl_arch=sparc ;;
sun*) guessed_sbcl_arch=sparc ;;
*ppc) guessed_sbcl_arch=ppc ;;
ppc64) guessed_sbcl_arch=ppc ;;
Power*Macintosh) guessed_sbcl_arch=ppc ;;
parisc) guessed_sbcl_arch=hppa ;;
9000/800) guessed_sbcl_arch=hppa ;;
mips*) guessed_sbcl_arch=mips ;;
*)
        # If we're not building on a supported target architecture, we
        # we have no guess, but it's not an error yet, since maybe
        # target architecture will be specified explicitly below.
            guessed_sbcl_arch=''
            ;;
    esac
    # Under Solaris, uname -m returns "i86pc" even if CPU is amd64.
    if [ "$sbcl_os" = "sunos" ] && [ `isainfo -k` = "amd64" ]; then
guessed_sbcl_arch=x86-64
    fi

    # Under Darwin, uname -m returns "i386" even if CPU is x86_64.
    if [ "$sbcl_os" = "darwin" ] &&
[ "`/usr/sbin/sysctl -n hw.optional.x86_64`" = "1" ] ; then
guessed_sbcl_arch=x86-64
    fi

    sbcl_arch=${SBCL_ARCH:-$guessed_sbcl_arch}
    if [ "$sbcl_arch" = "" ] ; then
echo "can't guess target SBCL architecture, need SBCL_ARCH environment var"
exit 1
    fi
fi

# Under Darwin x86-64, guess whether Darwin 9+ or below.
if [ "$sbcl_os" = "darwin" ] && [ "$sbcl_arch" = "x86-64" ]; then
    darwin_version=`uname -r`
    darwin_version_major=${DARWIN_VERSION_MAJOR:-${darwin_version%%.*}}
fi

link_or_copy() {
    $lncp "$1" "$2"
}
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