#!/bin/sh -
#
# Copyright (c) 1987 Regents of the University of California.
# All rights reserved.
#
# Redistribution and use in source and binary forms are permitted
# provided that this notice is preserved and that due credit is given
# to the University of California at 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'' without express or implied warranty.
#
#	@(#)mkdep.sh	5.9 (Berkeley) 1/1/88
#

#PATH=/bin:/usr/bin:/usr/ucb
#export PATH

MAKE=Makefile			# default makefile name is "Makefile"

: ${CPPDEP:="gcc -MM"}

SRCDIR=

while :
	do 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 ;;
		-s)
			SRCDIR=$2/
			shift ; shift  ;;
		*)
			break ;;
	esac
done

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

if [ ! -w $MAKE ]; then
	echo "mklibdep: no writeable file \"$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_

for x in $*
do

	$CPPDEP $CPPOPT $SRCDIR$x >> $TMP

done

#$CC $CPPOPT $* | /bin/sed -e "/\/usr\/include\//d" -e "s; \./; ;g" -e "s;\.o:;\.c:;" $SED | \
#	awk ' { \
#		if ($NF == "\\" ) { \
#			print rec; \
#			rec = $0;  \
#		} \
#		else if ($1 == $2 ":" ) { \
#			next
#		} \
#		else 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