#! /bin/sh
#
# Gated Release 4.x, 5.x, 6.x, 7.x
# 
# $Id: mkdep,v 1.5 2000/01/07 20:48:51 naamato Exp $
#
#
# GateD Releases Unicast, Multicast, IPv6, RSd
# 
# Copyright (c) 1996,1997,1998,1999 
# The Regents of the University of Michigan.
# All Rights Reserved.
# 
# License to use, copy, modify, and distribute this software and its
# documentation can be obtained from Merit Network, Inc. at the 
# University of Michigan.
# 
# Merit GateD Consortium
# Merit Network, Inc.
# 4251 Plymouth Road, Suite C
# Ann Arbor, MI 48105
# 
# THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
# EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF 
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE REGENTS OF THE
# UNIVERSITY OF MICHIGAN AND MERIT DO NOT WARRANT THAT THE FUNCTIONS 
# CONTAINED IN THE SOFTWARE WILL MEET LICENSEE'S REQUIREMENTS OR THAT 
# OPERATION WILL BE UNINTERRUPTED OR ERROR FREE. The Regents of the
# University of Michigan and Merit shall not be liable for any special, 
# indirect, incidental or consequential damages with respect to any claim 
# by Licensee or any third party arising from use of the software. 
# GateD was originated and developed through release 3.0 by Cornell 
# University and its collaborators.
# 
# Please send questions or comments to gated-people@gated.org.
#
# Please submit bugs, bug fixes, and enhancements using the send-pr(1) 
# utility or via the web at 
# www.gated.org/gated-web/support/html/report_prob.html.
# 
# ------------------------------------------------------------------------
#
#      Copyright (c) 1990,1991,1992,1993,1994,1995 by Cornell University.
#          All rights reserved.
#
#      THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY
#      EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
#      LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY
#      AND FITNESS FOR A PARTICULAR PURPOSE.
#
#      GateD is based on Kirton's EGP, UC Berkeley's routing
#      daemon   (routed), and DCN's HELLO routing Protocol.
#      Development of GateD has been supported in part by the
#      National Science Foundation.
#
# ------------------------------------------------------------------------
#
#      Portions of this software may fall under the following
#      copyrights:
#
#      Copyright (c) 1988 Regents of the University of California.
#      All rights reserved.
#
#      Redistribution and use in source and binary forms are
#      permitted provided that the above copyright notice and
#      this paragraph are duplicated in all such forms and that
#      any documentation, advertising materials, and other
#      materials related to such distribution and use
#      acknowledge that the software was developed by the
#      University of California, Berkeley.  The name of the
#      University may not be used to endorse or promote
#      products derived from this software without specific
#      prior written permission.  THIS SOFTWARE IS PROVIDED
#      ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
#      INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
#      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# __END_OF_COPYRIGHT__
#/

if [ $# = 0 ] ; then
	echo 'usage: mkdep [-p] [-f makefile] [flags] file ...'
	exit 1
fi

FLAG="-M -MG"
SED=
MAKE=Makefile			# default makefile name is "Makefile"
case $1 in
	# -f allows you to select a makefile name
	-f)
		MAKE=$2
		shift; shift
		;;

	# the -p flag produces "program: program.c" style dependencies
	# so .o's don't get produced
	-p)
		SED='-e s;\.o;;'
		shift
		;;

	-flag)
		FLAG=$2
		shift;shift
		;;
	-addflag)
		FLAG="$FLAG $2"
		shift; shift
		;;
	-cc)
		CC=$2
		shift;shift
		;;
esac

if [ ! -w $MAKE ]; then
	echo "mkdep: no writeable file \"$MAKE\""
	exit 1
fi

TMP=/tmp/mkdep$$

trap 'rm -f $TMP ; exit 1' 1 2 3 13 15

cp $MAKE ${MAKE}.bak

sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP

cat << _EOF_ >> $TMP
# DO NOT DELETE THIS LINE -- mkdep uses it.
# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.

_EOF_

${CC-cc} ${FLAG} $* | sed -e "s; \./; ;g" $SED | \
	awk ' { \
		if ($1 != prev) { \
			if (rec != "") \
				print rec; rec = $0; prev = $1; \
		} \
		else { \
			if (length(rec $2) > 78) { \
				print rec; rec = $0; \
			} else \
				rec = rec " " $2 \
		} \
	} \
	END { \
		print rec \
	} ' >> $TMP

cat << _EOF_ >> $TMP

# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
_EOF_

# copy to preserve permissions
cp $TMP $MAKE
rm -f ${MAKE}.bak $TMP
exit 0
