After upgrading perl to 510.1 I get this compile error for mod_perl-2.0.4. Perl is compiled with no threads and no multiplicity. Here's the output:

perl Makefile.PL MP_APXS=/usr/local/apache2/bin/apxs MP_COMPAT_1X=0
...

make
cd "src/modules/perl" && make
make[1]: Entering directory `/home/danny/Projects/mod_perl-2.0.4/src/modules/perl'
cc -I/home/danny/Projects/mod_perl-2.0.4/src/modules/perl -I/home/danny/Projects/mod_perl-2.0.4/xs -I/usr/local/apache2/include -I/usr/local/apache2/include -I/usr/local/apache2/include -maltivec -I/usr/lib/perl5/5.10.1/ppc64-linux-thread-multi-64int-ld/CORE -DMOD_PERL -DLINUX=2 -D_REENTRANT -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -O3 -fPIC \
 -c mod_perl.c && mv mod_perl.o mod_perl.lo
mod_perl.c: In function ‘modperl_shutdown’:
mod_perl.c:62: error: ‘my_perl’ undeclared (first use in this function)
mod_perl.c:62: error: (Each undeclared identifier is reported only once
mod_perl.c:62: error: for each function it appears in.)
mod_perl.c: In function ‘modperl_hook_post_config_last’:
mod_perl.c:718: error: ‘my_perl’ undeclared (first use in this function)
mod_perl.c: In function ‘modperl_child_exit’:
mod_perl.c:814: error: ‘my_perl’ undeclared (first use in this function)
mod_perl.c: In function ‘modperl_response_handler’:
mod_perl.c:1041: error: ‘my_perl’ undeclared (first use in this function)
mod_perl.c: In function ‘modperl_response_handler_cgi’:
mod_perl.c:1080: error: ‘my_perl’ undeclared (first use in this function)
make[1]: *** [mod_perl.lo] Error 1
make[1]: Leaving directory `/home/danny/Projects/mod_perl-2.0.4/src/modules/perl'
make: *** [modperl_lib] Error 2

It will compiles and run with perl 5.8.8, , which comes with my YDL-6.2 distro and uses ithreads.

any compile suggestions would be appreciated.