if [[ $2 != "" ]]

then

for d in $(tw -Pd ${1-lib} -e "(type == DIR)")

do

typeset firstdir=${d%/*}

printf '$(LIBDIR)%s%s:INSTALLDIR:' "$2" "${d#$firstdir}"

for f in $d/*

do [[ -f $f ]] && printf ' \\\n\t%s' "$f"

done

printf $'\n\n'

done

else

tw -d ${1-lib} -e "

begin: printf(':: ');

action: if (type == REG) printf('\\\\\\n %s ', path);

end: printf('\\n');

"

fi