[Dovecot] sieve-pipe Error

[Ian Barton]

I am using Dovecot 2.0.15 on Arch. I have cloned the hg repo and 
compiled the plugin using the following options:

./configure --with-dovecot=/usr/lib/dovecot 
--with-pigeonhole=/usr/include/dovecot/sieve/

The relevant section of my dovecot.conf looks like:

plugin {
   sieve = ~/.dovecot.sieve
   sieve_global_path = /home/vmail/globalsieverc
   sieve_dir = ~/

   sieve_plugins = sieve_pipe
   # This directory contains the scripts that are available.
   sieve_pipe_bin_dir = /usr/lib/dovecot/sieve-pipe
}

When I restart Dovecot I get the following error:

ian:dovecot/ $ sudo rc.d restart dovecot 
                                           [10:50:53]
:: Stopping dovecot daemon 
                                               [DONE]
:: Starting dovecot daemon 
                                               [BUSY] managesieve: 
Fatal: opendir(/usr/lib/dovecot/modules/sieve) failed: No such file or 
directory
doveconf: Error: managesieve-login: dump-capability process returned 89

Ian.