do not fail whan standard(s) in/output(s) are closed
do not fail whan standard(s) in/output(s) are closed

Ignore-this: 3b776318c0f45dad04219fd4dc91af2f

darcs-hash:20090513230411-c41ad-d43eecc64262cee45bf04dc312784fd654939573

rgrinberg/lwt,janestreet/lwt-async,c-cube/lwt,ocsigen/lwt,janestreet/lwt-async,mirage/lwt,rneswold/lwt,mirage/lwt,rneswold/lwt,ocsigen/lwt,rgrinberg/lwt,rneswold/lwt,mfp/lwt,rgrinberg/lwt,fdopen/lwt,c-cube/lwt,c-cube/lwt,gfxmonk/lwt,mfp/lwt,fdopen/lwt,ocsigen/lwt,gfxmonk/lwt,rgrinberg/lwt