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version 4.0

#!/bin/sh -
#
# Copyright (c) 1991, 1993
#	The Regents of the University of California.  All rights reserved.
#
# 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.
# 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
#
#	@(#)mkdep.gcc.sh	8.1 (Berkeley) 6/6/93
# $FreeBSD: head/usr.bin/mkdep/mkdep.gcc.sh 216370 2010-12-11 08:32:16Z joel $

D=.depend			# default dependency file is .depend
append=0
pflag=

while :
	do case "$1" in
		# -a appends to the depend file
		-a)
			append=1
			shift ;;

		# -f allows you to select a makefile name
		-f)
			D=$2
			shift; shift ;;

		# the -p flag produces "program: program.c" style dependencies
		# so .o's don't get produced
		-p)
			pflag=p
			shift ;;
		*)
			break ;;
	esac
done

case $# in 0) 
	echo 'usage: mkdep [-ap] [-f file] [flags] file ...' >&2
	exit 1;;
esac

TMP=_mkdep$$
trap 'rm -f $TMP ; trap 2 ; kill -2 $$' 1 2 3 13 15
trap 'rm -f $TMP' 0

# For C sources, mkdep must use exactly the same cpp and predefined flags
# as the compiler would.  This is easily arranged by letting the compiler
# pick the cpp.  mkdep must be told the cpp to use for exceptional cases.
CC=${CC-"cc"}
MKDEP_CPP=${MKDEP_CPP-"${CC} -E"}
MKDEP_CPP_OPTS=${MKDEP_CPP_OPTS-"-M"};

echo "# $@" > $TMP	# store arguments for debugging

if $MKDEP_CPP $MKDEP_CPP_OPTS "$@" >> $TMP; then :
else
	echo 'mkdep: compile failed' >&2
	exit 1
fi

case x$pflag in
	x) case $append in 
		0) sed -e 's; \./; ;g' < $TMP >  $D;;
		*) sed -e 's; \./; ;g' < $TMP >> $D;;
	   esac
	;;	
	*) case $append in 
		0) sed -e 's;\.o:;:;' -e 's; \./; ;g' < $TMP >  $D;;
		*) sed -e 's;\.o:;:;' -e 's; \./; ;g' < $TMP >> $D;;
	   esac
	;;
esac

exit $?