port p5-xmltv won't build due to anomaly with p5-XML-LibXML-Common-0.13

[Steven Friedrich]

I tried to install port p5-xmltv
and I received this error:
XML-LibXML-Common-0.13.tar.gz                 100% of   12 kB 5025  Bps
===>  Extracting for p5-XML-LibXML-Common-0.13
=> Checksum OK for XML-LibXML-Common-0.13.tar.gz.
===>   p5-XML-LibXML-Common-0.13 depends on file: /usr/local/bin/perl5.8.6 - 
found
===>  Patching for p5-XML-LibXML-Common-0.13
===>   p5-XML-LibXML-Common-0.13 depends on file: /usr/local/bin/perl5.8.6 - 
found
===>   p5-XML-LibXML-Common-0.13 depends on file: /usr/local/bin/perl5.8.6 - 
found
===>   p5-XML-LibXML-Common-0.13 depends on shared library: xml2.5 - found
===>  Configuring for p5-XML-LibXML-Common-0.13
enable native perl UTF8
running xml2-config... ok
looking for -lxml2... no
looking for -llibxml2... no
libxml2 not found
Try setting LIBS and INC values on the command line
Or get libxml2 from
  http://www.libxml.org/
If you install via RPMs, make sure you also install the -devel
RPMs, as this is where the headers (.h files) are.

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i386 FreeBSD 4.11-STABLE
There are 10 types of people in this world. Ones that understand binary and 
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