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# $NetBSD: transform-libtool,v 1.2 2004/10/03 21:39:07 jlam Exp $
#
# Copyright (c) 2004 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Johnny C. Lam.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#        This product includes software developed by the NetBSD
#        Foundation, Inc. and its contributors.
# 4. Neither the name of The NetBSD Foundation nor the names of its
#    contributors may be used to endorse or promote products derived
#    from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

BUILDLINK_DIR="@BUILDLINK_DIR@"
WRKSRC="@WRKSRC@"

basename="@BASENAME@"
dirname="@DIRNAME@"
pwd="@PWD@"

case $arg in
######################################################################
# Workaround software authors that don't follow the libtool
# documentation and link against uninstalled libtool archives with:
#
#	-L../package/source/dir -lfoo
#
# instead of the correct (according to the libtool documentation)
#
#	../package/source/dir/libfoo.la
#
# We convert the former into the latter by remembering all "local"
# directories that are mentioned in -L* arguments to to libtool
# wrapper, and checking to see if <dir>/libfoo.la exists when we see
# "-lfoo" on the libtool command line.  Avoid matching the buildlink
# directory here for the WRKSRC == WRKDIR case.
######################################################################
-L${BUILDLINK_DIR}/*)
	;;
-L.|-L./*|-L..*|-L[!/]*|-L${WRKSRC}*)
	case $arg in
	*/.libs)
		# ignore -L.../.libs
		;;
	*)
		msg_log $wrapperlog "*** [buildlink3] Warning: libtool detected $arg"
		lpath="${arg#-L}"
		case $rellpath in
		*"$lpath "*)	;;
		*"$lpath"*)	;;
		*)		rellpath="$rellpath $lpath" ;;
		esac
		addtocache=no
		;;
	esac
	;;
-l*)
	lib="${arg#-l}"
	for dir in $rellpath; do
		la="$dir/lib$lib.la"
		if $test -f "$la"; then
			ldir=`cd $dir; $pwd`
			buildlibdir=`. $la; $echo $buildlibdir`
			if $test -n "$buildlibdir" -a \
				 "$ldir" != "$buildlibdir"; then
				la="$buildlibdir/lib$lib.la"
			fi
			$debug_log $wrapperlog "    (transform-libtool) to: $la"
			msg_log $wrapperlog "*** [buildlink3] Warning: libtool replaced $arg with $la"
			$echo "*** [buildlink3] Warning: libtool replaced $arg with $la" 1>&2
			arg="$la"
			addtocache=no
			break
		fi
	done
	;;
######################################################################
# Replace all references to locally-linked libtool archives with the
# full paths to the archives in $buildlibdir if $buildlibdir differs
# from the referenced directory.  This makes linking against a symlinked
# local libtool archive possible.
######################################################################
./*.la|../*.la|[!-/]*.la|${WRKSRC}/*.la)
	labase=`$basename $arg`
	ladir=`$dirname $arg`
	ldir=`cd $ladir; $pwd`
	buildlibdir=`. $ladir/$labase; $echo $buildlibdir`
	if $test -n "$buildlibdir" -a "$ldir" != "$buildlibdir" -a \
		 -e "$buildlibdir/$labase"; then
		arg="$buildlibdir/$labase"
		$debug_log $wrapperlog "    (transform-libtool) to: $arg"
		msg_log $wrapperlog "*** [buildlink3] Warning: libtool replaced $ladir/$labase with $arg"
		addtocache=yes
	fi
	;;
esac