#!/bin/bash
# Copyright (C) 2007 Siegfried-A. Gevatter <siggi.gevatter@gmail.com>
# Based upon a short script by an unknown author
# License: GPLv2+
#
# This script is used to find the reverse build dependencies
# that a package has.

usage() {
	echo "Usage: $0 [-c] <package name>"
}

if [ "$1" = '-c' ]
then
	count=1
	shift
fi

if [ $# -ne 1 ];
then
	usage
	exit 1
fi

if [ "$1" = '-h' ] || [ "$1" = '--help' ]
then
	usage
	exit 0
fi

result=$(
	grep-dctrl -sPackage -F Build-Depends,Build-Depends-Indep $1 \
	/var/lib/apt/lists/*Sources | cut -d ' ' -f 2)

if [ -z $count ]
then
	echo $result
else
	echo $result | wc -w
fi