Bioruby on cygwin


I want to do local BLAST on cygwin with BioRuby. When I do this, does
BLAST have to be installed through cygwin rather than windows?

I know this is not the right group to ask, but I am also having
problem installing BLAST on cygwin. I found

and installed OCaml on cygwin, but I cannot excute

make distclean

because there is no “distclean”? No idea what to do.

Thank you for your help.