\usepackage{makeidx}

% The following defintions are for our indexing scheme. Stolen from
% doc.sty.
\def\dotfill{\leaders\hbox to.6em{\hss .\hss}\hskip\z@ plus  1fill}%
\def\dotfil{\leaders\hbox to.6em{\hss .\hss}\hfil}%
\def\efill{\hfill\nopagebreak}%
\def\pfill{\unskip~\dotfill\penalty500\strut\nobreak
               \dotfil~\ignorespaces}%
%%