plink.sh revision e0a2b6df 
1#!/bin/sh
2# $XTermId: plink.sh,v 1.10 2013/07/07 01:20:48 tom Exp $
3# -----------------------------------------------------------------------------
4# this file is part of xterm
5#
6# Copyright 2001-2010,2013 by Thomas E. Dickey
7#
8#                         All Rights Reserved
9#
10# Permission is hereby granted, free of charge, to any person obtaining a
11# copy of this software and associated documentation files (the
12# "Software"), to deal in the Software without restriction, including
13# without limitation the rights to use, copy, modify, merge, publish,
14# distribute, sublicense, and/or sell copies of the Software, and to
15# permit persons to whom the Software is furnished to do so, subject to
16# the following conditions:
17#
18# The above copyright notice and this permission notice shall be included
19# in all copies or substantial portions of the Software.
20#
21# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24# IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
25# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
26# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
27# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28#
29# Except as contained in this notice, the name(s) of the above copyright
30# holders shall not be used in advertising or otherwise to promote the
31# sale, use or other dealings in this Software without prior written
32# authorization.
33# -----------------------------------------------------------------------------
34#
35# Reduce the number of dynamic libraries used to link an executable.
36LINKIT=
37ASNEED=no
38while test $# != 0
39do
40	if test $ASNEED = no && test -n "$LINKIT"
41	then
42		ASNEED=yes
43		OPT=-Wl,-as-needed
44		if ( eval $LINKIT $OPT $* >/dev/null 2>/dev/null )
45		then
46			WARNED=`eval $LINKIT $OPT $* 2>&1`
47			case ".$WARNED" in
48			*Warning*|*nsupported*|*nrecognized*|*nknown*)
49				;;
50			*)
51				LINKIT="$LINKIT $OPT $*"
52				break
53				;;
54			esac
55		fi
56	fi
57
58	OPT="$1"
59	shift
60	case $OPT in
61	-k*)
62		OPT=`echo "$OPT" | sed -e 's/^-k/-l/'`
63		LINKIT="$LINKIT $OPT"
64		;;
65	-l*)
66		echo "testing if $OPT is needed"
67		if ( eval $LINKIT $* >/dev/null 2>/dev/null )
68		then
69			: echo ...no
70		else
71			echo ...yes
72			LINKIT="$LINKIT $OPT"
73		fi
74		;;
75	*)
76		LINKIT="$LINKIT $OPT"
77		;;
78	esac
79done
80eval $LINKIT
81