genconv-filter.info occures twice in makefile.in

Hi,
I tried to build the alpha version of aspell. One thing that bit
me was the perl script gen/mk-static-filter.pl. The problem seems
to be that file genconv-filter.info was passed to it twice. That
seems to be because genconv-filter.info is in two macros (vars)
in makefile.in. The vars are static_optfiles and optfiles. Maybe
genconv-filter.info only needs to be in one place.
Gary