bug#24439: ispell.el; cutom setting `ispell-library-directory'; patch

[Laimonas Vėbra]

Ken Brown wrote:

> You must be using an old version of Cygwin ispell.  In current Cygwin,
> ispell is a wrapper around aspell, and the dictionaries are in
> /usr/lib/aspell-0.60.

Actually it's a cygwin build of ispell, because cygwin does not provide 
ispell package. Anyway, wrapper (shell script) obviously doesn't work 
from native command line, so native Emacs can't use it.