\input docstrip.tex
% \keepsilent
\askforoverwritefalse
\generate{\file{familytree.sty}{
    \from{familytree.dtx}{package}
    \from{ft-lib.dtx}{package}
    \from{ft-individual.dtx}{package}
    \from{ft-sibling.dtx}{package}
    \from{ft-gens.dtx}{package}
    \from{ft-marriage.dtx}{package}
}}
\endbatchfile