flock vs fnctl

[Lawrence Greenfield]

   Date: Tue, 22 Jul 2003 17:11:39 -0400 (EDT)
   From: Rob Siemborski <rjs3 at andrew.cmu.edu>
[...]
   No, fcntl is not the default.  I'll have to look at the documentation.

   --with-lock=flock should fix this for you though if it makes a difference.

Except that it has been since 2.1.7:

> Change default locking method to fcntl from flock

If I recall, it's due to the fact that Linux had a buggy flock but a
working fcntl and no one could come up with another reason. The
mailing list archives probably have more.

Larry