1#!/bin/sh
2##############################################################################
3# Copyright (c) 1998-2003,2005 Free Software Foundation, Inc.                #
4#                                                                            #
5# Permission is hereby granted, free of charge, to any person obtaining a    #
6# copy of this software and associated documentation files (the "Software"), #
7# to deal in the Software without restriction, including without limitation  #
8# the rights to use, copy, modify, merge, publish, distribute, distribute    #
9# with modifications, sublicense, and/or sell copies of the Software, and to #
10# permit persons to whom the Software is furnished to do so, subject to the  #
11# following conditions:                                                      #
12#                                                                            #
13# The above copyright notice and this permission notice shall be included in #
14# all copies or substantial portions of the Software.                        #
15#                                                                            #
16# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR #
17# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   #
18# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    #
19# THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      #
20# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    #
21# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        #
22# DEALINGS IN THE SOFTWARE.                                                  #
23#                                                                            #
24# Except as contained in this notice, the name(s) of the above copyright     #
25# holders shall not be used in advertising or otherwise to promote the sale, #
26# use or other dealings in this Software without prior written               #
27# authorization.                                                             #
28##############################################################################
29#
30# Author: Thomas E. Dickey <dickey@clark.net> 1996
31#
32# $Id: shlib,v 1.11 2007/01/13 17:09:52 tom Exp $
33# Use this script as a wrapper when running executables linked to shared
34# libraries on systems that use the $LD_LIBRARY_PATH variable and don't embed
35# the soname's path within the linked executable (such as IRIX), e.g,
36#
37#	shlib knight
38#
39# Setting LD_LIBRARY_PATH, overrides/supplements the loader's normal search
40# path, and works on most systems.  The drawback is that then the environment
41# variable has to be set to run the programs within this directory tree.
42#
43# For Linux (and other systems using the GNU loader), we can use the rpath
44# directive, which embeds the pathname of the library within the executable.
45# Using the Linux loader's rpath directive introduces a constraint, since
46# it's embedded into the binary, and means that the binary cannot be moved
47# around (though it'll work if the $exec_prefix convention that puts the bin
48# and lib directories under the same parent is followed).
49#
50# Using the actual soname (e.g., ../lib/libncurses.so) alone, is a more
51# flexible solution; you can link without having to set the environment
52# variable, and on some systems (IRIX) you can even run the resulting binaries
53# without setting LD_LIBRARY_PATH.
54#
55# Using a conventional link, with -L and -l options on Linux results in a
56# statically linked executable, which we don't want at all.
57#
58# Special cases:
59#
60#	BeOS R4.5 uses $LIBRARY_PATH rather than $LD_LIBRARY_PATH.
61#	Cygwin uses $PATH
62#	Mac OS X uses $DYLD_LIBRARY_PATH
63#
64# Other cases not handled by this script:
65#
66#	AIX uses $LIBPATH
67#	IRIX64 may use $LD_LIBRARY64_PATH or $LD_LIBRARYN32_PATH
68#	Solaris may use $LD_LIBRARY_PATH_64
69#
70CDPATH=
71#
72# Make sure that we use the PATH that was set in run_tic.sh
73if test -n "$SHLIB_PATH" ; then
74	PATH=$SHLIB_PATH
75	export PATH
76fi
77
78# Find the lib-directory for this build tree
79q=""
80for p in lib ../lib ../../lib ../../../lib
81do
82	if test -d $p; then
83		q=`cd $p; pwd`
84		break
85	elif test -f configure && test ! -d ../$p ; then
86		break
87	fi
88done
89
90# Set the environment variable.
91if test -n "$q" ; then
92	system=
93	if test -n "$SHLIB_HOST" ; then
94		system="$SHLIB_HOST"
95	elif test -n "$PATHEXT" ; then
96		system=cygwin
97	elif test -n "$LIBRARY_PATH" ; then
98		system=beos
99	elif test -n "$DYLD_LIBRARY_PATH" ; then
100		system=darwin
101	elif test -n "$LD_LIBRARY_PATH"; then
102		system=unix
103	else
104		for r in $q/*.*
105		do
106			if test -f "$r"
107			then
108				case $r in
109				*.dll)
110					system=cygwin
111					;;
112				*.dylib)
113					system=darwin
114					;;
115				esac
116			fi
117			test -n "$system" && break
118		done
119	fi
120
121	case .$system in
122	.cygwin*)
123		variable=PATH
124		;;
125	.beos*)
126		variable=LIBRARY_PATH
127		;;
128	.darwin*)
129		variable=DYLD_LIBRARY_PATH
130		;;
131	*)
132		variable=LD_LIBRARY_PATH
133		;;
134	esac
135
136	eval 'test -z "$'$variable'" && '$variable'=":"'
137	eval $variable'="$q:$'$variable'"'
138	eval 'export '$variable
139fi
140
141eval "$*"
142