There is no thread support but it wouldn't be very difficult to add it.
-Rick Sladkey <jrs@world.std.com>
+On UnixWare using the -f option to follow forked children sometimes shows
+many "unfinished" system calls as strace bounces between each runnable child.
+A crude workaround for this is available by adding
+
+ #define POLL_HACK 1
+
+to the config.h file. This forces strace to check whether the last process
+has finished a system call before polling other processes for events.
+
+Wichert Akkerman <wakkerma@debian.org>