libdispatch is in FreeBSD now, and people are using it to write concurrent C code. I think they even have blocks, and the clang compiler front end working too. I believe the earliest, least-experimental branch of code is FreeBSD-STABLE for the 8 series, but I'll double check. Dave On Thu, Dec 3, 2009 at 3:14 AM, wrote: > > distant ancestor of alef? > > and alef's descent may be Go.☺ > > Kenji > > >