[Dovecot] URLAUTH-patch, BSD specific?

[Peter Mogensen]

Hi,

I notice that the Apple patched branch of Dovecot 2.0 with URLAUTH fails 
to compile on Linux.

The file src/plugins/urlauth/urlauth-keys.c uses open(2) with O_EXLOCK, 
which to my knowledge is BSD specific.

Is that a known problem?

/Peter