UPDATE 2007-09-15: I believe I have a fix for this. In Cyrus/IMAP/Shell.pm change line 780 from:
if (Cyrus::IMAP::imclient_havetls()) {
if (Cyrus::IMAP::havetls()) {
See also: https://bugzilla.andrew.cmu.edu/show_bug.cgi?id=2988
Name : cyrus-imapd
Arch : x86_64
Version: 2.3.9
Release: 6.fc6
$ uname -a
Linux galadriel 2.6.22.1-32.fc6 #1 SMP Wed Aug 1 14:30:16 EDT 2007 x86_64
x86_64 x86_64 GNU/Linux
$ cyradm
cyradm> login matisse
Can't locate auto/Cyrus/IMAP/imclient_ha.al in @INC (@INC contains:
/usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi
/usr/lib64/perl5/site_perl/5.8.7/x86_64-linux-thread-multi
/usr/lib64/perl5/site_perl/5.8.6/x86_64-linux-thread-multi
/usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.7
/usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5
/usr/lib/perl5/site_perl
/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi
/usr/lib64/perl5/vendor_perl/5.8.7/x86_64-linux-thread-multi
/usr/lib64/perl5/vendor_perl/5.8.6/x86_64-linux-thread-multi
/usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.7
/usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/5.8.5
/usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi
/usr/lib/perl5/5.8.8 .) at
/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi/Cyrus/IMAP/Shell.pm
line 780
cyradm>
Evidently I am not the only one getting this problem. See: http://use.perl.org/~jk2addict/journal/32136