98 lines
2.7 KiB
Bash
98 lines
2.7 KiB
Bash
#!/bin/sh
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# $XTermId: plink.sh,v 1.17 2022/03/13 18:27:29 Ryan.Schmidt Exp $
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# -----------------------------------------------------------------------------
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# this file is part of xterm
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#
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# Copyright 2001-2021,2022 by Thomas E. Dickey
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#
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# All Rights Reserved
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
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# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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# Except as contained in this notice, the name(s) of the above copyright
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# holders shall not be used in advertising or otherwise to promote the
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# sale, use or other dealings in this Software without prior written
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# authorization.
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# -----------------------------------------------------------------------------
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#
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# Reduce the number of dynamic libraries used to link an executable.
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LINKIT=
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ASNEED=no
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NO_LTO=
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# gcc's link-time optimization is very slow - reduce usage of that.
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case "$*" in
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*-flto=*|-flto\ )
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NO_LTO=-fno-lto
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;;
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esac
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: "${TMPDIR=/tmp}"
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while [ $# != 0 ]
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do
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if [ $ASNEED = no ] && [ -n "$LINKIT" ]
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then
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ASNEED=yes
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OPT=-Wl,-as-needed
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warned=`mktemp "$TMPDIR/xterm.XXXXXXXX"`
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trap "rm -f $warned; exit 1" 1 2 3 15
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trap "rm -f $warned" 0
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if ( eval $LINKIT $OPT $NO_LTO "$@" >"$warned" 2>&1 )
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then
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WARNED=`cat "$warned"`
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rm -f "$warned"
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case ".$WARNED" in
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*Warning*|*nsupported*|*nrecognized*|*nknown*)
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;;
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*)
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LINKIT="$LINKIT $OPT $*"
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break
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;;
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esac
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else
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rm -f "$warned"
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fi
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fi
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OPT="$1"
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shift
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case $OPT in
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-k*)
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OPT=`echo "$OPT" | sed -e 's/^-k/-l/'`
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echo "always use $OPT (cannot test if needed)"
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LINKIT="$LINKIT $OPT"
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;;
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-l*)
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echo "testing if $OPT is needed"
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if ( eval $LINKIT $NO_LTO "$@" >/dev/null 2>&1 )
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then
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: echo ...no
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else
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echo ...yes
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LINKIT="$LINKIT $OPT"
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fi
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;;
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*)
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LINKIT="$LINKIT $OPT"
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;;
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esac
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done
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eval $LINKIT
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