lanes report error when script ends

[Martin Krpan <wtxnh-lua@...>]

I have lanes 2.0.9 built on Debian Lenny.

Whenever I run a script that use lanes it ends with error after script
ends:
threading.c 394: pthread_cond_destroy(ref) failed, 16 EBUSY
Aborted (core dumped)

When I run script under wine at the end it prints something like:
Killed 2 lane(s) at process end.

Another issue:
When I run example form doc that introduce linda it runs fine.
If I then add a line
linda:limit("x", 3)
output is like this:
$ lua linda.lua
sending: 1
sending: 2
sending: 3
sending: 4
received: 1
received: 2
received: 3
timed out
threading.c 394: pthread_cond_destroy(ref) failed, 16 EBUSY
Aborted (core dumped)