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mergelib
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1999-09-03
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#!/bin/sh
#
# $XConsortium: mergelib.cpp,v 1.4 94/04/17 20:10:43 rws Exp $
#
# Copyright (c) 1989 X Consortium
#
# $XFree86: xc/config/util/mergelib.cpp,v 1.1.1.1.12.2 1999/07/22 14:21:27 hohndel Exp $
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not be
# used in advertising or otherwise to promote the sale, use or other dealings
# in this Software without prior written authorization from the X Consortium.
#
# Author: Jim Fulton, MIT X Consortium
#
# mergelib - merge one library into another; this is commonly used by X
# to add the extension library into the base Xlib.
#
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
#
# Create a temp directory, and figure out how to reference the
# object files from it (i.e. relative vs. absolute path names).
#
tmpdir=tmp.$$
origdir=..
# Remove directory if we fail
trap "rm -rf $tmpdir; exit 1" 1 2 15
trap "rm -rf $tmpdir; exit 0" 1 2 13
mkdir $tmpdir
# Security: if $tmpdir exists before mkdir exit immediately
if [ $? -gt 0 -o ! -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
#
# In the temp directory, extract all of the object files and prefix
# them with some symbol to avoid name clashes with the base library.
#
cd $tmpdir || exit 1
ar x ${upfrom}$fromlib
for i in *.o; do
mv $i ${objprefix}$i
done
#
# Merge in the object modules, ranlib (if appropriate) and cleanup
#
ar clq ${upto}$tolib *.o
ranlib ${upto}$tolib
cd $origdir
rm -rf $tmpdir