Original bug ID: 728
Reporter: administrator
Status: closed
Resolution: fixed
Priority: normal
Severity: minor
Category: ~DO NOT USE (was: OCaml general)

Bug description

Full_Name: FOREST
Version: 3.04
OS: Debian woody
Submission from: pc8-110.lri.fr (129.175.8.110)

Same problem as for the message id 643.

When compiling with ocamlc all works well but when compiling with ocamlc.opt
give
the following message:

Error on dynamically loaded library: /usr/local/lib/ocaml/dllthreads.so:
undefined symbol: extern_sp

The program should be any program using thread
for example:
bug.ml:
open Thread

let t1 = Thread.create (function () -> print_string "\nfoo\n\n") ()

let _ =
print_string "bar";
flush stdout;
Thread.join t1

The command lines are respectively:

ocamlc -o ok -I +thread -thread unix.cma threads.cma bug.ml

and

ocamlc.opt -o bug -I +thread -thread unix.cma threads.cma bug.ml

If neccesary I've put an archive on my web page
http://www.lri.fr/~forest/bug-thread.tar.gz

Thanks,
Julien FOREST