gnu: Add Template-Toolkit.

* gnu/packages/perl.scm (perl-template-toolkit): New variable.

gnu/packages/perl.scm

@@ -3197,6 +3197,31 @@ (define-public perl-task-weaken
 error encouraging the user to seek support.")
     (license (package-license perl))))
 
+(define-public perl-template-toolkit
+  (package
+    (name "perl-template-toolkit")
+    (version "2.26")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://cpan/authors/id/A/AB/ABW/"
+                           "Template-Toolkit-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1gknrm8hdci5ryg67p4y23lsy7lynczqmq9kh9nzj7kg08vczqg7"))))
+    (build-system perl-build-system)
+    (propagated-inputs
+     `(("perl-appconfig" ,perl-appconfig)
+       ("perl-test-leaktrace" ,perl-test-leaktrace)))
+    (home-page "http://search.cpan.org/dist/Template-Toolkit")
+    (synopsis "Template processing system for Perl")
+    (description "The Template Toolkit is a collection of modules which
+implement an extensible template processing system.  It was originally
+designed and remains primarily useful for generating dynamic web content, but
+it can be used equally well for processing any other kind of text based
+documents: HTML, XML, POD, PostScript, LaTeX, and so on.")
+    (license (package-license perl))))
+
 (define-public perl-test-cleannamespaces
   (package
     (name "perl-test-cleannamespaces")