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|
#! /bin/sh
# Output a system dependent linker command for putting a relocatable library
# search path into an executable.
#
# Copyright 2003 Free Software Foundation, Inc.
# Written by Bruno Haible <bruno@clisp.org>, 2003.
#
# This program 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
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# 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.
#
# The first argument passed to this file is the canonical host specification,
# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
# or
# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
# The environment variable LD should be set by the caller.
#
# The second argument is a colon separated list of directories that contain
# the libraries at installation time.
#
# The third argument is the directory into which the executable is going to be
# installed.
host="$1"
host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
library_path_value=$2
installdir=$3
# Verify that installdir is absolute.
case "$installdir" in
/*) ;;
*)
echo "installdir is not absolute: $installdir" 1>&2
exit 1
;;
esac
case "$host_os" in
linux*) # Supported since Linux 2.1 and glibc 2.1.
rpath=
save_IFS="$IFS"; IFS=":"
for dir in $library_path_value; do
IFS="$save_IFS"
case "$dir" in
/*)
# Make dir relative to installdir. (Works only if dir is absolute.)
idir="$installdir"
while true; do
dfirst=`echo "$dir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'`
ifirst=`echo "$idir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'`
if test -z "$dfirst" || test -z "$ifirst"; then
break
fi
if test "$dfirst" != "$ifirst"; then
break
fi
dir=`echo "$dir" | sed -e 's,^//*[^/]*,,'`
idir=`echo "$idir" | sed -e 's,^//*[^/]*,,'`
done
dir="\$ORIGIN"`echo "$idir" | sed -e 's,//*[^/]*,/..,g'`"$dir"
# Add dir to rpath.
rpath="${rpath}${rpath:+ }$dir"
;;
*)
if test -n "$dir"; then
echo "libdir is not absolute: $dir" 1>&2
fi
;;
esac
done
IFS="$save_IFS"
# Output it.
if test -n "$rpath"; then
echo "-Wl,-rpath,$rpath"
fi
;;
*)
echo "relocation via rpath not supported on this system: $host" 1>&2
exit 1
;;
esac
exit 0
|
