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Annotation of embedaddon/libiconv/build-aux/reloc-ldflags, revision 1.1

1.1     ! misho       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 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: 
        !            38: host="$1"
        !            39: host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
        !            40: host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
        !            41: host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
        !            42: 
        !            43: library_path_value=$2
        !            44: 
        !            45: installdir=$3
        !            46: 
        !            47: # Verify that installdir is absolute.
        !            48: case "$installdir" in
        !            49:   /*) ;;
        !            50:   *)
        !            51:     echo "installdir is not absolute: $installdir" 1>&2
        !            52:     exit 1
        !            53:     ;;
        !            54: esac
        !            55: 
        !            56: case "$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:     ;;
        !            99: esac
        !           100: 
        !           101: exit 0