121 lines
3.8 KiB
Bash
121 lines
3.8 KiB
Bash
#! /bin/sh
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# Output a system dependent linker command for putting a relocatable library
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# search path into an executable.
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#
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# Copyright 2003-2022 Free Software Foundation, Inc.
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# Written by Bruno Haible <bruno@clisp.org>, 2003.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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# As a special exception to the GNU General Public License, if you
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# distribute this file as part of a program that contains a
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# configuration script generated by Autoconf, you may include it under
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# the same distribution terms that you use for the rest of that program.
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#
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# The first argument passed to this file is the canonical host specification,
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# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
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# or
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# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
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# The environment variable LD should be set by the caller.
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#
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# The second argument is a colon separated list of directories that contain
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# the libraries at installation time.
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#
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# The third argument is the directory into which the executable is going to be
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# installed.
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host="$1"
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host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
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host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
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host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
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library_path_value=$2
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installdir=$3
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# Verify that installdir is absolute.
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case "$installdir" in
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/*) ;;
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*)
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echo "installdir is not absolute: $installdir" 1>&2
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exit 1
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;;
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esac
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origin_token=
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case "$host_os" in
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linux* | gnu* | kfreebsd* | \
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freebsd* | dragonfly* | midnightbsd* | \
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netbsd* | \
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openbsd* | \
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solaris* | \
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haiku*)
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origin_token='$ORIGIN'
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;;
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darwin*)
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origin_token='@loader_path'
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;;
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esac
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if test -n "$origin_token"; then
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# We are not on AIX, HP-UX, or IRIX. Therefore the -rpath options are
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# cumulative.
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rpath_options=
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save_IFS="$IFS"; IFS=":"
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for dir in $library_path_value; do
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IFS="$save_IFS"
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case "$dir" in
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/*)
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# Make dir relative to installdir. (Works only if dir is absolute.)
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idir="$installdir"
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while true; do
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dfirst=`echo "$dir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'`
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ifirst=`echo "$idir" | sed -n -e 's,^//*\([^/]*\).*$,/\1,p'`
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if test -z "$dfirst" || test -z "$ifirst"; then
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break
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fi
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if test "$dfirst" != "$ifirst"; then
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break
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fi
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dir=`echo "$dir" | sed -e 's,^//*[^/]*,,'`
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idir=`echo "$idir" | sed -e 's,^//*[^/]*,,'`
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done
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dir="$origin_token"`echo "$idir" | sed -e 's,//*[^/]*,/..,g'`"$dir"
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# Augment rpath_options with dir.
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rpath_options="${rpath_options}${rpath_options:+ }-Wl,-rpath,$dir"
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;;
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*)
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if test -n "$dir"; then
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echo "libdir is not absolute: $dir" 1>&2
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fi
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;;
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esac
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done
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IFS="$save_IFS"
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# Output it.
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if test -n "$rpath_options"; then
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case "$host_os" in
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# At least some versions of FreeBSD, DragonFly, and OpenBSD need the
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# linker option "-z origin". See <https://lekensteyn.nl/rpath.html>.
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freebsd* | dragonfly* | openbsd*)
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rpath_options="-Wl,-z,origin $rpath_options" ;;
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esac
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echo "$rpath_options"
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fi
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else
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echo "relocation via rpath not supported on this system: $host" 1>&2
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exit 1
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fi
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exit 0
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