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, 2009-2011 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 3 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, 14# but WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16# GNU 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, see <http://www.gnu.org/licenses/>. 20# 21# As a special exception to the GNU General Public License, if you 22# distribute this file as part of a program that contains a 23# configuration script generated by Autoconf, you may include it under 24# the same distribution terms that you use for the rest of that program. 25# 26# The first argument passed to this file is the canonical host specification, 27# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM 28# or 29# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM 30# The environment variable LD should be set by the caller. 31# 32# The second argument is a colon separated list of directories that contain 33# the libraries at installation time. 34# 35# The third argument is the directory into which the executable is going to be 36# installed. 37 38host="$1" 39host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'` 40host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'` 41host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'` 42 43library_path_value=$2 44 45installdir=$3 46 47# Verify that installdir is absolute. 48case "$installdir" in 49 /*) ;; 50 *) 51 echo "installdir is not absolute: $installdir" 1>&2 52 exit 1 53 ;; 54esac 55 56case "$host_os" in 57 linux*) # Supported since Linux 2.1 and glibc 2.1. 58 rpath= 59 save_IFS="$IFS"; IFS=":" 60 for dir in $library_path_value; do 61 IFS="$save_IFS" 62 case "$dir" in 63 /*) 64 # Make dir relative to installdir. (Works only if dir is absolute.) 65 idir="$installdir" 66 while true; do 67 dfirst=`echo "$dir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'` 68 ifirst=`echo "$idir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'` 69 if test -z "$dfirst" || test -z "$ifirst"; then 70 break 71 fi 72 if test "$dfirst" != "$ifirst"; then 73 break 74 fi 75 dir=`echo "$dir" | sed -e 's,^//*[^/]*,,'` 76 idir=`echo "$idir" | sed -e 's,^//*[^/]*,,'` 77 done 78 dir="\$ORIGIN"`echo "$idir" | sed -e 's,//*[^/]*,/..,g'`"$dir" 79 # Add dir to rpath. 80 rpath="${rpath}${rpath:+ }$dir" 81 ;; 82 *) 83 if test -n "$dir"; then 84 echo "libdir is not absolute: $dir" 1>&2 85 fi 86 ;; 87 esac 88 done 89 IFS="$save_IFS" 90 # Output it. 91 if test -n "$rpath"; then 92 echo "-Wl,-rpath,$rpath" 93 fi 94 ;; 95 *) 96 echo "relocation via rpath not supported on this system: $host" 1>&2 97 exit 1 98 ;; 99esac 100 101exit 0 102