From 89faa5c75cb3a419c6d02c51f56955275b7ae351 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Thu, 20 Mar 2014 23:05:59 +0100
Subject: [PATCH] daemon: Really override the substituters setting.

Reported by Andreas Enge <andreas@enge.fr>:
<https://lists.gnu.org/archive/html/guix-devel/2014-03/msg00211.html>.

* nix/nix-daemon/guix-daemon.cc (main): Set the 'NIX_SUBSTITUTERS'
  env. var.  Leave 'settings.substituters' unchanged.
---
 nix/nix-daemon/guix-daemon.cc | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/nix/nix-daemon/guix-daemon.cc b/nix/nix-daemon/guix-daemon.cc
index 79cd080363..086b846ce1 100644
--- a/nix/nix-daemon/guix-daemon.cc
+++ b/nix/nix-daemon/guix-daemon.cc
@@ -287,10 +287,11 @@ main (int argc, char *argv[])
 	  string subs = getEnv ("NIX_SUBSTITUTERS", "default");
 
 	  if (subs == "default")
-	    settings.substituters.push_back (settings.nixLibexecDir
-					     + "/guix/substitute-binary");
-	  else
-	    settings.substituters = tokenizeString<Strings> (subs, ":");
+	    {
+	      string subst =
+		settings.nixLibexecDir + "/guix/substitute-binary";
+	      setenv ("NIX_SUBSTITUTERS", subst.c_str (), 1);
+	    }
 	}
 
       if (geteuid () == 0 && settings.buildUsersGroup.empty ())