strange failure for dependency against libdb-4.5.so

[Mamoru Tasaka <mtasaka ioa s u-tokyo ac jp>]

Hi.

Now I am checking ice review request (bug 234612) and I tried
to rebuild ice on koji scratch build. However I met with a
strange buildroot error:

---------------------------------------------------------------
Executing /usr/sbin/mock-helper yum --installroot /var/lib/mock/dist-f8-build-32623-4599/root resolvedep  'ant-nodeps' 'mono-core' 'php-devel' 'ruby-devel' 'bzip2-devel' 'python-devel' 'expat-devel' 'java-devel >= 1.5.0' 'openssl-devel' 'ruby-libs' 'ant' 'jpackage-utils' 'php' 'ruby' 'db4-devel' 'db4-java'

<snip>

Executing /usr/sbin/mock-helper yum --installroot /var/lib/mock/dist-f8-build-32623-4599/root install  'ant-nodeps' 'mono-core' 'php-devel' 'ruby-devel' 'bzip2-devel' 'python-devel' 'expat-devel' 'java-devel >= 1.5.0' 'openssl-devel' 'ruby-libs' 'ant' 'jpackage-utils' 'php' 'ruby' 'db4-devel' 'db4-java'
Error: Missing Dependency: libdb-4.5.so is needed by package ruby-libs
Error: Missing Dependency: libdb-4.5.so is needed by package httpd
Error: Missing Dependency: libdb-4.5.so is needed by package httpd-tools
Error: Missing Dependency: libdb-4.5.so is needed by package apr-util
Cleaning up...
----------------------------------------------------------------
http://koji.fedoraproject.org/koji/taskinfo?taskID=105168

What is happening here? I don't see these unresolved dependencies
on daily rawhide report and when I tried to install these 4 packages
everything seems okay.

Thanks in advance.
Regards,

Mamoru