From eb6b471b44c96deac89093a2f8c016baaa7b6b3e Mon Sep 17 00:00:00 2001
From: Efraim Flashner <efraim@flashner.co.il>
Date: Mon, 12 Feb 2018 11:39:58 +0200
Subject: gnu: emacs-ob-ipython: Declare a source file-name.

* gnu/packages/emacs.scm (emacs-ob-ipython)[source]: Add 'file-name field.
---
 gnu/packages/emacs.scm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index be4525c0e4..a2a1c5805c 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -2386,6 +2386,7 @@ the speedbar window.")
               (uri (git-reference
                     (commit "880706469338ab59b5bb7dbe8460016f89755364")
                     (url "https://github.com/gregsexton/ob-ipython.git")))
+              (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
                 "1scf25snbds9ymagpny30ijbsg479r3nm0ih01dy4m9d0g7qryb7"))))
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