#! /bin/sh

concat_path ()
{
	if [ -z "$1" ] ; then
		echo "Please give me a value to concatinate to the variable!"
		exit
	fi

	addition=$1

	if [ -d "${addition}" ] ; then
		if [ -z "${PATH}" ] ; then
			PATH=${addition}
		else
			PATH=${addition}:${PATH}
		fi

		export PATH
	fi
}

concat_manpath ()
{
	if [ -z "$1" ] ; then
		echo "Please give me a value to concatinate to the variable!"
		exit
	fi

	addition=$1

	if [ -d "${addition}" ] ; then
		if [ -z "${MANPATH}" ] ; then
			MANPATH=${addition}
		else
			MANPATH=${addition}:${MANPATH}
		fi

		export MANPATH
	fi
}

# we don't have a MANPATH? we can find one.
if [ -z "${MANPATH}" ] ; then
	case `uname -s` in
			SunOS)
				# some solaris systems have manpath
				if ( command -v manpath >/dev/null 2>&1 ) ; then
					MANPATH=`manpath`
					export MANPATH
				else
					concat_manpath "/usr/share/man"
				fi
			;;
			OpenBSD)
				concat_manpath "/usr/local/man/old"
				concat_manpath "/usr/gnu/man/old"
				concat_manpath "/usr/contrib/man/old"
				concat_manpath "/usr/X11R6/man/old"
				concat_manpath "/usr/X11/man/old"
				concat_manpath "/usr/gnu/man"
				concat_manpath "/usr/contrib/man"
				concat_manpath "/usr/X11R6/man"
				concat_manpath "/usr/X11/man"
				concat_manpath "/usr/share/man"
			;;
			Darwin|Linux|FreeBSD)
				MANPATH=`manpath`
				export MANPATH
			;;
	esac
fi