This directory contains Red Hat packages for Perl modules that we need
but which are not included in the standard operating-system
distribution.  At present, this includes:
	XML::LibXML::XPathContext
	Marc::Record
	HTML::TagCloud (needed for MKAdmin, not ZOOM-Perl)

--

The base source RPMs were downloaded from:
ftp://ftp.pbone.net/mirror/olea.org/paquetes-rpm/perl-XML-LibXML-XPathContext-0.07-1.src.rpm
ftp://ftp.sunet.se/pub/Linux/distributions/Mandriva/devel/cooker/SRPMS/contrib/release/perl-MARC-Record-2.0.2-1mdv2010.1.src.rpm
ftp://mirror.switch.ch/pool/2/mirror/fedora/linux/development/rawhide/source/SRPMS/perl-HTML-TagCloud-0.34-4.fc14.src.rpm
and are saved in the "orig" subdirectory.

But they all needed tweaking for CentOS as shown in the log below:

$ sudo rpmbuild --rebuild perl-MARC-Record-2.0.2-1mdv2010.1.src.rpm 
Installing perl-MARC-Record-2.0.2-1mdv2010.1.src.rpm
warning: InstallSourcePackage: Header V3 DSA signature: NOKEY, key ID 26752624
warning: user mandrake does not exist - using root
warning: group mandrake does not exist - using root
warning: user mandrake does not exist - using root
warning: group mandrake does not exist - using root
error: line 8: Tag takes single token only: Release:	%mkrel 1

$ sudo rpmbuild --rebuild perl-XML-LibXML-XPathContext-0.07-1.src.rpm 
Installing perl-XML-LibXML-XPathContext-0.07-1.src.rpm
warning: InstallSourcePackage: Header V3 DSA signature: NOKEY, key ID 41d6b379
warning: user olea does not exist - using root
warning: group olea does not exist - using root
warning: user olea does not exist - using root
warning: group olea does not exist - using root
error: No compatible architectures found for build

$ sudo rpmbuild --rebuild perl-HTML-TagCloud-0.34-4.fc14.src.rpm 
Installing perl-HTML-TagCloud-0.34-4.fc14.src.rpm
warning: user mockbuild does not exist - using root
warning: group mockbuild does not exist - using root
error: unpacking of archive failed on file /usr/src/redhat/SOURCES/HTML-TagCloud-0.34.tar.gz;4c3c5fa4: cpio: MD5 sum mismatch
error: perl-HTML-TagCloud-0.34-4.fc14.src.rpm cannot be installed

So the modified version are in the "centos" directory.
I unpacked each source RPM using
$ rpm2cpio perl-MARC-Record-2.0.2-1mdv2010.1.src.rpm | cpio -i
And modified the extracted .spec file as necessary.