May be, your host system too old, and in -current system header files has changed significantly. Compare files in /usr/include/sys and /usr/src/sys/sys (check other headers too) Or download and install -current as host for building.
25.02.2013, 07:43, "Chris Smith" <obsd_m...@chrissmith.org>: > On Sun, Feb 24, 2013 at 6:04 PM, Alexander Hall <alexan...@beard.se> wrote: >> $ cvs up -dAP > That didn't help :-(