weird error after upgrade of cpan libs

I upgraded some CPAN libs including Module::Build and
ExtUtils::CBuilder and started running into some problems.

https://rt.cpan.org/Public/Bug/Display.html?id=65382

Hrmm, this seems to also affect cgi's in production:

[Wed Feb 02 12:41:48 2011] [error] [client 64.22.103.163] /usr/bin/perl: symbol lookup error: /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/auto/APR/Request/Apache2/Apache2.so: undefined symbol: modperl_xs_sv2request_rec

  #!/usr/bin/perl

  use strict;
  use warnings FATAL => 'all';
  use English '-no_match_vars';
  use YAML;
  use Apache2::Request;
  my $r = shift;
  my $req = Apache2::Request->new($r);
  $r->print("Content-type: text/plain\n\n");
  $r->print(Dump(\%ENV));

Help?

Mark