1#!/bin/sh 2# $XTermId: plink.sh,v 1.12 2021/01/27 00:18:09 tom Exp $ 3# ----------------------------------------------------------------------------- 4# this file is part of xterm 5# 6# Copyright 2001-2013,2021 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 echo "always use $OPT (cannot test if needed)" 64 LINKIT="$LINKIT $OPT" 65 ;; 66 -l*) 67 echo "testing if $OPT is needed" 68 if ( eval $LINKIT "$@" >/dev/null 2>/dev/null ) 69 then 70 : echo ...no 71 else 72 echo ...yes 73 LINKIT="$LINKIT $OPT" 74 fi 75 ;; 76 *) 77 LINKIT="$LINKIT $OPT" 78 ;; 79 esac 80done 81eval $LINKIT 82