gnu: Add xstow.

* gnu/packages/package-management.scm (xstow): New variable.

Signed-off-by: Christopher Baines <mail@cbaines.net>

gnu/packages/package-management.scm

@@ -641,6 +641,25 @@ letting you install them apart in distinct directories and then create
 symlinks to the files in a common directory such as /usr/local.")
     (license license:gpl3+)))
 
+(define-public xstow
+  (package
+    (name "xstow")
+    (version "1.0.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://sourceforge/xstow/xstow-"
+                                  version ".tar.bz2"))
+              (sha256
+               (base32
+                "1vy6lcswpkixh7h5mvsmq2wbcih6lpsmcva3m7v6f5npllciy13g"))))
+    (build-system gnu-build-system)
+    (synopsis "Replacement of GNU Stow written in C++")
+    (description
+     "XStow is a replacement of GNU Stow written in C++.  It supports all
+features of Stow with some extensions.")
+    (home-page "http://xstow.sourceforge.net/")
+    (license license:gpl2)))
+
 (define-public rpm
   (package
     (name "rpm")