1#! /bin/sh 2# Output a system dependent linker command for putting a relocatable library 3# search path into an executable. 4# 5# Copyright 2003 Free Software Foundation, Inc. 6# Written by Bruno Haible <bruno@clisp.org>, 2003. 7# 8# This program is free software; you can redistribute it and/or modify 9# it under the terms of the GNU General Public License as published by 10# the Free Software Foundation; either version 2 of the License, or 11# (at your option) any later version. 12# 13# This program is distributed in the hope that it will be useful, but 14# WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16# General Public License for more details. 17# 18# You should have received a copy of the GNU General Public License 19# along with this program; if not, write to the Free Software Foundation, 20# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 21# 22# As a special exception to the GNU General Public License, if you 23# distribute this file as part of a program that contains a 24# configuration script generated by Autoconf, you may include it under 25# the same distribution terms that you use for the rest of that program. 26# 27# The first argument passed to this file is the canonical host specification, 28# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM 29# or 30# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM 31# The environment variable LD should be set by the caller. 32# 33# The second argument is a colon separated list of directories that contain 34# the libraries at installation time. 35# 36# The third argument is the directory into which the executable is going to be 37# installed. 38 39host="$1" 40host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'` 41host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'` 42host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'` 43 44library_path_value=$2 45 46installdir=$3 47 48# Verify that installdir is absolute. 49case "$installdir" in 50 /*) ;; 51 *) 52 echo "installdir is not absolute: $installdir" 1>&2 53 exit 1 54 ;; 55esac 56 57case "$host_os" in 58 linux*) # Supported since Linux 2.1 and glibc 2.1. 59 rpath= 60 save_IFS="$IFS"; IFS=":" 61 for dir in $library_path_value; do 62 IFS="$save_IFS" 63 case "$dir" in 64 /*) 65 # Make dir relative to installdir. (Works only if dir is absolute.) 66 idir="$installdir" 67 while true; do 68 dfirst=`echo "$dir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'` 69 ifirst=`echo "$idir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'` 70 if test -z "$dfirst" || test -z "$ifirst"; then 71 break 72 fi 73 if test "$dfirst" != "$ifirst"; then 74 break 75 fi 76 dir=`echo "$dir" | sed -e 's,^//*[^/]*,,'` 77 idir=`echo "$idir" | sed -e 's,^//*[^/]*,,'` 78 done 79 dir="\$ORIGIN"`echo "$idir" | sed -e 's,//*[^/]*,/..,g'`"$dir" 80 # Add dir to rpath. 81 rpath="${rpath}${rpath:+ }$dir" 82 ;; 83 *) 84 if test -n "$dir"; then 85 echo "libdir is not absolute: $dir" 1>&2 86 fi 87 ;; 88 esac 89 done 90 IFS="$save_IFS" 91 # Output it. 92 if test -n "$rpath"; then 93 echo "-Wl,-rpath,$rpath" 94 fi 95 ;; 96 *) 97 echo "relocation via rpath not supported on this system: $host" 1>&2 98 exit 1 99 ;; 100esac 101 102exit 0 103