voicemail_imapstorage is not working

i have installed asterisk 1.8 following this doc

i installed the package
in order to store voicemail in imap

but the application voicemail is not available when i type
core show application ?

in the asterisk log file i have these messages
[Feb 3 19:00:20] WARNING[14311] loader.c: Error loading module ‘app_voicemail_imapstorage.so’: /usr/lib/libc-client.so.1: undefined symbol: mm_dlog
[Feb 3 19:00:20] WARNING[14311] loader.c: Module ‘app_voicemail_imapstorage.so’ could not be loaded.

does someone know how to solve that problem?

Looks like there was some discussion of this before:

markmail.org/message/rmqozhcvwoc … te:results