OK, limited perl support...

Here's the test "package"; log of test run is below.

   <package name="foo" xml-version="1">
   <status>wibble</status>
   <prototypes>
     <prototype team="."     name="ALL"/>
   </prototypes>
   <test-me>
   <code lang="perl"><![CDATA[
   print "Hello, world!\n";
   ]]></code>
   </test-me>
   </package>

(Jonathan, I apologize profusely. :-)

Will

partain% ARK_DEBUG=15 arkpkg test-me --hosts=. --verbose foo
parsing: /workspace/partain/ark/glasli1/team.xml
parsing: /workspace/partain/ark/glasli1/package/foo.xml
parsing: /workspace/partain/ark/glasli1/package/ALL.xml
parsing: /workspace/partain/ark/sidai/package/ALL.xml
parsing: /workspace/partain/ark/glasli1/host/slicker.xml
parsing: /workspace/partain/ark/glasli1/host/sli-trusted.xml
parsing: /workspace/partain/ark/glasli1/host/sparc-solaris-license-server.xml
parsing: /workspace/partain/ark/glasli1/host/sparc-solaris2.6.xml
parsing: /workspace/partain/ark/glasli1/host/sparc-solaris.xml
parsing: /workspace/partain/ark/sidai/host/sparc-solaris.xml
parsing: /workspace/partain/ark/sidai/host/solaris.xml
parsing: /workspace/partain/ark/glasli1/host/ALL.xml
parsing: /workspace/partain/ark/sidai/host/ALL.xml
parsing: /workspace/partain/ark/glasli1/host/sparc-solaris-mail-server.xml
parsing: /workspace/partain/ark/glasli1/host/sparc-solaris-web-server.xml
parsing: /workspace/partain/ark/glasli1/host/std-sparc-solaris.xml
parsing: /workspace/partain/ark/glasli1/host/ia32-rhlinux6.1.xml
parsing: /workspace/partain/ark/glasli1/host/ia32-rhlinux.xml
parsing: /workspace/partain/ark/sidai/host/ia32-rhlinux.xml
parsing: /workspace/partain/ark/sidai/host/rhlinux.xml
parsing: /workspace/partain/ark/sidai/team.xml

> test-me on foo ( not done before )
[ [u'code from: /workspace/partain/ark/glasli1/package/foo.xml'] ]
>> to be run on slicker for slicker [slicker]
constraint slicker-PERL -> package perl-reveal [slicker] ... SKIP
Hello, world!