Why bother with the replacement?  Why not just upgrade it?

J'

On Thu, Jan 12, 2017 at 09:13:53PM +0100, Marius Bakke wrote:
     * gnu/packages/ed.scm (ed-1.14.1): New variable.
     (ed)[replacement]: New field.
     ---
      gnu/packages/ed.scm | 13 +++++++++++++
      1 file changed, 13 insertions(+)
     
     diff --git a/gnu/packages/ed.scm b/gnu/packages/ed.scm
     index 3668aac19..c51a4b82f 100644
     --- a/gnu/packages/ed.scm
     +++ b/gnu/packages/ed.scm
     @@ -28,6 +28,7 @@
      (define-public ed
        (package
          (name "ed")
     +    (replacement ed-1.14.1)
          (version "1.13")
          (source (origin
                   (method url-fetch)
     @@ -55,3 +56,15 @@ interactively and via shell scripts.  Its method of command input allows
      complex tasks to be performed in an automated way.  GNU ed offers several
      extensions over the standard utility.")
          (license gpl3+)))
     +
     +(define ed-1.14.1
     +  (package (inherit ed)
     +           (source
     +            (let ((version "1.14.1"))
     +              (origin
     +                (method url-fetch)
     +                (uri (string-append "mirror://gnu/ed/ed-"
     +                                    version ".tar.lz"))
     +                (sha256
     +                 (base32
     +                  "0ajm69pma7gigddlrq2qi4dsllz9vhm8gqwpkcdagdd2yaw7xfgz")))))))
     -- 
     2.11.0
     

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