Companion change to this one
   ChangeSet@1.2206, 2007-01-22 02:32:07+02:00, jani@a88-113-38-195.elisa-laajakaista.fi +8 -0
     include/my_pthread.h@1.67, 2007-01-22 02:32:06+02:00, jani@a88-113-38-195.elisa-laajakaista.fi +31 -10
which renamed "sigset()" -> "my_sigset()" but forgot to do it for Windows ...