undefined symbol: MUTABLE_CV for mod_perl-2.0.6 / svn rev 1296804

Hi,

it seems that mod_perl-2.0.6 / svn rev 1296804 doesn't work with
CentOS 5 / 32 bit latest RPM packages. I guess it's the same
for RedHat EL 5.

On CentOS 5 the latest RPM packages for httpd and perl are:

httpd-2.2.3-53.el5.centos.3
httpd-devel-2.2.3-53.el5.centos.3
perl-5.8.8-32.el5_6.3

mod_perl-2.0.4-6.el5
mod_perl-devel-2.0.4-6.el5

If I build my own

mod_perl-2.0.6-0
mod_perl-devel-2.0.6-0

to replace 2.0.4 and install it, I get the following after a
http restart:

Cannot load /etc/httpd/modules/mod_perl.so into server:  
/etc/httpd/modules/mod_perl.so: undefined symbol: MUTABLE_CV

Is it possible that MUTABLE_CV is not part of perl 5.8.8 ?

Thomas.