]> Thanks for all of your help. I tried, and it works fine until the require of "json-static". It breaks when loading "pcre.cma". Now we can say that pcre package has some problem, but dynlink is loaded successfully. Test1 $ ocaml Objective Caml version 3.11.1 # #load "dynlink.cma";; # let x = Dynlink.is_native;; val x : bool = false Test 2 $ocaml #use "topfind";; #load "dynlink.cma";; #require "json-static";; /home/conglun/godi/lib/ocaml/std-lib/dynlink.cma: loaded /home/conglun/godi/lib/ocaml/std-lib/camlp4: added to search path /home/conglun/godi/lib/ocaml/pkg-lib/pcre: added to search path /home/conglun/godi/lib/ocaml/pkg-lib/pcre/pcre.cma: loaded 47721 [main] ocaml 2136 _cygtls::handle_exceptions: Error while dumping state (probably corrupted stack) Segmentation fault (core dumped) Test 3 ocamlfind ocamlmktop -package dynlink -o dtop -custom -linkall $./dtop #use "topfind";; #require "dynlink";; /home/conglun/godi/lib/ocaml/std-lib/dynlink.cma: loaded # let x = Dynlink.is_native;; val x : bool = false On Sun, Oct 4, 2009 at 10:14 PM, David Allsopp <dra-news@metastack.com>wrote: > > Ah but wait, your META file has that patch incorporated already! > > > > I don't know -- the cygwin distribution of OCaml is broken somehow. > > What happens if you run ocaml and then enter #load "dynlink.cma";; ?? > > > David > >