Markus E L wrote:
> OK. So it seems, @responsefile is only used sometimes, not
> always. That makes it difficult to see wether the situation actually
> persists. When was that you got the problem and (if you remember) with
> which version (approximately at least) of MSYS/MingW). As I said, I'd
> be interested in the long run to get a distribution of OCaml that is
> independent of Cygwin and Visual C++.

@responsefile is only used when command-line length exceeds 256 (see 
code in utils/ccomp.ml).

@responsefile idiosyncrasy is a problem of MSYS only (not MinGW).