AS_CASE(["$host_os"],
[aix*|cygwin*|linux*],
[default_locktype="fcntl"; default_locking=FCNTL_LOCKING],
- [freebsd*], [default_locktype="flock"; default_locking=FLOCK_LOCKING],
+ [freebsd*|openbsd*|darwin*], [default_locktype="flock"; default_locking=FLOCK_LOCKING],
[default_locktype="dot"; default_locking=DOT_LOCKING])
AC_ARG_WITH(locking,