From e463e09dc2b5ef6c19ae9dbb11f1caeb8336bbf7 Mon Sep 17 00:00:00 2001
From: Guillaume Le Vaillant <glv@posteo.net>
Date: Sat, 24 Jul 2021 15:38:03 +0200
Subject: [PATCH] services: dhcpd: Fix activation with IPv6 configuration.

* gnu/services/networking.scm (dhcpd-activation): Pass the IP version
  parameter to dhcpd.
---
 gnu/services/networking.scm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm
index eeb1487116..4e1055609d 100644
--- a/gnu/services/networking.scm
+++ b/gnu/services/networking.scm
@@ -17,6 +17,7 @@
 ;;; Copyright © 2021 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2021 Christopher Lemmer Webber <cwebber@dustycloud.org>
 ;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
+;;; Copyright © 2021 Guillaume Le Vaillant <glv@posteo.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -363,8 +364,9 @@ (define dhcpd-activation
                (lambda _ (display ""))))
            ;; Validate the config.
            (invoke/quiet
-            #$(file-append package "/sbin/dhcpd") "-t" "-cf"
-            #$config-file))))))
+            #$(file-append package "/sbin/dhcpd")
+            #$(string-append "-" version)
+            "-t" "-cf" #$config-file))))))
 
 (define dhcpd-service-type
   (service-type