#!/bin/rc
#
# generate list of HFILES and dependencies for each .$O
#
rfork e

if(~ $#* 0 1){
	echo usage: $0 files >[1=2]
	exit usage
}

cs=$*
hdrs=`{grep -h '^#include[ 	]*"' $cs | sed 's/#include[ 	]*"([^"]+)".*/\1/' | sort -u}

echo 'HFILES=\'

all=()
for(h in $hdrs){
	nh=`{grep '^#include[ 	]*"'^$h^'"' $cs | wc -l}
	if(~ $nh $#cs){
		echo '	'^$h^'\'
		all=($all $h)
	}
}

for(c in $cs){
	hs=`{grep -h '^#include[ 	]*"' $c | sed 's/#include[ 	]*"([^"]+)".*/\1/' }
	echo -n `{echo $c | sed 's/\.c$/.$O:/'}
	for(h in $hs)
		if(! ~ $h $all)
			echo -n ' '^$h
	echo
}
exit ''