XCOMM!/bin/sh
XCOMM
XCOMM $TOG: mergelib.cpp /main/5 1998/02/06 11:24:31 kaleb $
XCOMM 
XCOMM Motif
XCOMM
XCOMM Copyright (c) 1987-2012, The Open Group. All rights reserved.
XCOMM
XCOMM These libraries and programs are free software; you can
XCOMM redistribute them and/or modify them under the terms of the GNU
XCOMM Lesser General Public License as published by the Free Software
XCOMM Foundation; either version 2 of the License, or (at your option)
XCOMM any later version.
XCOMM
XCOMM These libraries and programs are distributed in the hope that
XCOMM they will be useful, but WITHOUT ANY WARRANTY; without even the
XCOMM implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
XCOMM PURPOSE. See the GNU Lesser General Public License for more
XCOMM details.
XCOMM
XCOMM You should have received a copy of the GNU Lesser General Public
XCOMM License along with these librararies and programs; if not, write
XCOMM to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
XCOMM Floor, Boston, MA 02110-1301 USA
XCOMM 
XCOMM Author:  Jim Fulton, MIT X Consortium
XCOMM 
XCOMM mergelib - merge one library into another; this is commonly used by X
XCOMM     to add the extension library into the base Xlib.
XCOMM

usage="usage:  $0  to-library from-library [object-filename-prefix]"
objprefix=_

case $# in
    2) ;;
    3) objprefix=$3 ;;
    *) echo "$usage" 1>&2; exit 1 ;;
esac

tolib=$1
fromlib=$2

if [ ! -f $fromlib ]; then
    echo "$0:  no such from-library $fromlib" 1>&2
    exit 1
fi

if [ ! -f $tolib ]; then
    echo "$0:  no such to-library $tolib" 1>&2
    exit 1
fi


XCOMM
XCOMM Create a temp directory, and figure out how to reference the 
XCOMM object files from it (i.e. relative vs. absolute path names).
XCOMM

tmpdir=tmp.$$
origdir=..

mkdir $tmpdir

if [ ! -d $tmpdir ]; then
    echo "$0:  unable to create temporary directory $tmpdir" 1>&2
    exit 1
fi

case "$fromlib" in
    /?*) upfrom= ;;
    *)  upfrom=../ ;;
esac

case "$tolib" in
    /?*) upto= ;;
    *)  upto=../ ;;
esac


XCOMM
XCOMM In the temp directory, extract all of the object files and prefix
XCOMM them with some symbol to avoid name clashes with the base library.
XCOMM
cd $tmpdir
ar x ${upfrom}$fromlib
for i in *.o; do
    mv $i ${objprefix}$i
done


XCOMM
XCOMM Merge in the object modules, ranlib (if appropriate) and cleanup
XCOMM
ARCMD ${upto}$tolib *.o
RANLIB ${upto}$tolib
cd $origdir
rm -rf $tmpdir