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#! /bin/sh

#

# shlib-install - install a shared library and do any necessary host-specific

#                 post-installation configuration (like ldconfig)

#

# usage: shlib-install [-D] -O host_os -d installation-dir -i install-prog [-U] library

#

# Chet Ramey

# chet@po.cwru.edu

#

# defaults

#

INSTALLDIR=/usr/local/lib

LDCONFIG=ldconfig

PROGNAME=`basename $0`

USAGE="$PROGNAME [-D] -O host_os -d installation-dir -i install-prog [-U] library"

# process options

while [ $# -gt 0 ]; do

        case "$1" in

        -O)     shift; host_os="$1"; shift ;;

        -d)     shift; INSTALLDIR="$1"; shift ;;

        -i)     shift; INSTALLPROG="$1" ; shift ;;

        -D)     echo=echo ; shift ;;

        -U)     uninstall=true ; shift ;;

        -*)     echo "$USAGE" >&2 ; exit 2;;

        *)      break ;;

        esac

done

# set install target name

LIBNAME="$1"

if [ -z "$LIBNAME" ]; then

        echo "$USAGE" >&2

        exit 2

fi

OLDSUFF=old

MV=mv

RM="rm -f"

LN="ln -s"

# pre-install

if [ -z "$uninstall" ]; then

        ${echo} $RM ${INSTALLDIR}/${LIBNAME}.${OLDSUFF}

        if [ -f "$INSTALLDIR/$LIBNAME" ]; then

                ${echo} $MV $INSTALLDIR/$LIBNAME ${INSTALLDIR}/${LIBNAME}${OLDSUFF}

        fi

fi

# install/uninstall

if [ -z "$uninstall" ] ; then

        ${echo} eval ${INSTALLPROG} $LIBNAME ${INSTALLDIR}/${LIBNAME}

else

        ${echo} ${RM} ${INSTALLDIR}/${LIBNAME}

fi

# post-install/uninstall

case "$LIBNAME" in

*.*.[0-9].[0-9])        # libname.so.M.N

        LINK2=`echo $LIBNAME | sed 's:\(.*\..*\.[0-9]\)\.[0-9]:\1:'`    # libname.so.M

        LINK1=`echo $LIBNAME | sed 's:\(.*\..*\)\.[0-9]\.[0-9]:\1:'`    # libname.so

        ;;

*.*.[0-9])              # libname.so.M

        LINK1=`echo $LIBNAME | sed 's:\(.*\..*\)\.[0-9]:\1:'`           # libname.so

        ;;

esac

#

# Create symlinks to the installed library.  This section is incomplete.

#

case "$host_os" in

*linux*|bsdi4*)

        # libname.so.M -> libname.so.M.N

        ${echo} ${RM} ${INSTALLDIR}/$LINK2

        if [ -z "$uninstall" ]; then

                ${echo} ln -s $INSTALLDIR/$LIBNAME ${INSTALLDIR}/$LINK2

        fi

        # libname.so -> libname.so.M.N

        ${echo} ${RM} ${INSTALLDIR}/$LINK1

        if [ -z "$uninstall" ]; then

                ${echo} ln -s $INSTALLDIR/$LIBNAME ${INSTALLDIR}/$LINK1

        fi

        ;;

solaris2*|aix4.[2-9]*|hpux1*)

        # libname.so -> libname.so.M

        ${echo} ${RM} ${INSTALLDIR}/$LINK1

        if [ -z "$uninstall" ]; then

                ${echo} ln -s $INSTALLDIR/$LIBNAME ${INSTALLDIR}/$LINK1

        fi

        ;;

*)      ;;

esac

exit 0