Apache 2.4 in a jail with Digest auth

[Spil Oss]

Hi,

I'm trying to upgrade my apache configurarion to 2.4 and ran into
trouble that I haven't solved yet.

[Fri Mar 29 20:53:26.867199 2013] [auth_digest:notice] [pid 88563:tid
679494400] AH01757: generating secret for digest authentication ...
[Fri Mar 29 20:53:26.867531 2013] [auth_digest:error] [pid 88563:tid
679494400] (78)Function not implemented: AH01762: Failed to create
shared memory segment on file /var/run/authdigest_shm.88563
[Fri Mar 29 20:53:26.867556 2013] [auth_digest:error] [pid 88563:tid
679494400] (78)Function not implemented: AH01760: failed to initialize
shm - all nonce-count checking, one-time nonces, and MD5-sess
algorithm disabled
[Fri Mar 29 20:53:26.867571 2013] [:emerg] [pid 88563:tid 679494400]
AH00020: Configuration Failed, exiting

Since setting sysvipc.allow = 1 makes the usage of a jail superfluous
"If it were set to 1, it would defeat the whole purpose of having a
jail;" [http://www.freebsd.org/doc/en/books/arch-handbook/jail-restrictions.html]

I was searching for a way to get it to use any of the other available
methods but haven't found any.
1. Documentation to change the socache provider I haven't found after
ploughing through the docs from httpd.apache.org
2. Disable shm in apr -> no switch for shm found in configure

Anyone have any bright ideas how to get Apache 2.4 to get to use a
different store for the nonce?

(This is basically a duplicate of
http://lists.freebsd.org/pipermail/freebsd-ports/2013-February/081052.html
item 6 but now for the official port.

Kind regards,

Spil.