default_pre_build      &&
cd  $SOURCE_DIRECTORY  &&
# fix xml-twig detection
TWIG=`installed_version xml-twig`     &&
message twig=$TWIG &&
sedit  "s/3\.10/$TWIG/"  Makefile.PL  &&
sedit  "s/3\.10/$TWIG/"  grab/na_dd/tv_grab_na_dd.in  &&
sedit  's:die "bad makefile:#\0:'  Makefile.PL