From 58204a3c39614297e71a21a7633ea8293e8304ee Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Wed, 14 Aug 2013 15:35:13 -0400
Subject: [PATCH] corepkgs/nar.nix: Prefer local builds

nar.nix's builder depends on coreutils and nix itself being in $PATH.
Unfortunately, there's no good way to ensure that these packages exist
in the same place on the remote machine: The local machine may have nix
installed in /usr, and the remote machine in /usr/local, but the
generated nar.sh builder will refer to /usr and thus fail on the remote
machine. This ensures that nar.sh is run on the same machine that
instantiates it.

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 corepkgs/nar.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/corepkgs/nar.nix b/corepkgs/nar.nix
index 73009047e..c3db19d0d 100644
--- a/corepkgs/nar.nix
+++ b/corepkgs/nar.nix
@@ -43,4 +43,7 @@ derivation {
 
   # Don't build in a chroot because Nix's dependencies may not be there.
   __noChroot = true;
+
+  # Remote machines may not have ${nixBinDir} or ${coreutils} in the same prefixes
+  preferLocalBuild = true;
 }