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#!/bin/sh
# libtool-reloc - libtool wrapper with support for relocatable programs
# Copyright (C) 2019-2022 Free Software Foundation, Inc.
# Written by Bruno Haible <bruno@clisp.org>, 2019.
#
# 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 3 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, see <https://www.gnu.org/licenses/>.
# Usage: libtool-reloc libtool LIBTOOL_ARGUMENTS
# Outputs a command and runs it.
func_verbose ()
{
# Make it easy to copy&paste the printed command into a shell in most cases,
# by escaping '\\', '"', and '$'. This is not perfect, just good enough.
echo "$@" | sed -e 's/\([\\"$]\)/\\\1/g'
"$@"
}
# Determine the mode from the arguments.
mode=
for arg
do
case "$arg" in
--mode=link) mode=link ;;
esac
done
if test "$mode" = link; then
# Determine the target from the arguments.
target=
next_is_target=false
for arg
do
if $next_is_target; then
target="$arg"
next_is_target=false
else
case "$arg" in
-o) next_is_target=true ;;
*) next_is_target=false ;;
esac
fi
done
case "$target" in
*.la)
# When creating a library:
# 1. Add a '-Wl,-rpath,@loader_path' option.
# (A '-R @loader_path' option does not work: libtool produces
# an error "error: only absolute run-paths are allowed".)
# (Also note that 'install_name_tool -add_rpath @loader_path ...'
# does not work on Mac OS X 10.5.)
# This is done through the RELOCATABLE_LDFLAGS macro.
# 2. After creating the library, run
# install_name_tool -id @rpath/$dlname $target_dir/.libs/$dlname
# (This is easier than to modify the libtool script to emit a different
# install_name. Also, an option '-Wl,-install_name,@rpath/$dlname' does
# not work since libtool emits another option '-Wl,-install_name,...'
# after it.
"$@" && {
dlname_assignment=`grep '^dlname=' "$target"`
dlname=
eval "$dlname_assignment"
# Nothing to do when --disable-shared was specified.
if test -n "$dlname"; then
target_dir=`dirname "$target"`
if test -f "$target_dir/.libs/$dlname"; then
func_verbose install_name_tool -id "@rpath/$dlname" "$target_dir/.libs/$dlname"
fi
fi
}
;;
*)
"$@"
;;
esac
else
"$@"
fi
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