Re: Override LN_S and support Windows symlinks

> > 1. Could _AS_LN_S_PREPARE be changed to work with or recognize Cygwin
> >     and MSYS2?
>
> I suppose it could, but what specific change is being proposed? It's not
> entirely clear from your email.

Fair enough. Would it be possible to remove the `ln -s file dir` check?
And would it work for AC_PROG_LN_S to set
`as_ln_s="CYGWIN=winsymlinks:nativestrict ln -s"`? or export the
CYGWIN or MSYS env var in the configure and config.status scripts?