gnu: Add xmlto.

* gnu/packages/xml.scm (xmlto): New variable.

gnu/packages/xml.scm

@@ -28,7 +28,8 @@ (define-module (gnu packages xml)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
-  #:use-module (guix build-system perl))
+  #:use-module (guix build-system perl)
+  #:use-module (gnu packages linux))
 
 (define-public expat
   (package
@@ -138,3 +139,27 @@ (define-public perl-xml-parser
 as extra arguments to the parse methods, in which case they override options
 given at XML::Parser creation time.")
     (home-page "http://search.cpan.org/~toddr/XML-Parser-2.41/Parser.pm")))
+
+(define-public xmlto
+  (package
+    (name "xmlto")
+    (version "0.0.25")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append
+            "https://fedorahosted.org/releases/x/m/xmlto/xmlto-"
+            version ".tar.bz2"))
+      (sha256
+       (base32
+        "0dp5nxq491gymq806za0dk4hngfmq65ysrqbn0ypajqbbl6vf71n"))))
+    (build-system gnu-build-system)
+    (inputs
+     `(("util-linux" ,util-linux)))
+    (home-page "http://cyberelk.net/tim/software/xmlto/")
+    (synopsis "Front-end to an XSL toolchain")
+    (description
+     "Xmlto is a front-end to an XSL toolchain.  It chooses an appropriate
+stylesheet for the conversion you want and applies it using an external
+XSL-T processor.  It also performs any necessary post-processing.")
+    (license license:gpl2+)))