From c00e07834327a8ef626cf4f1ecb216ee1b6a0877 Mon Sep 17 00:00:00 2001
From: Marwan Aljubeh <marwan.aljubeh@gmail.com>
Date: Fri, 18 Sep 2020 17:10:39 +0100
Subject: Add a nix.conf option for allowing a symlinked store

---
 src/libstore/globals.hh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/libstore/globals.hh')

diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index 02721285a..129cef6b4 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -881,6 +881,19 @@ public:
 
     Setting<std::string> flakeRegistry{this, "https://github.com/NixOS/flake-registry/raw/master/flake-registry.json", "flake-registry",
         "Path or URI of the global flake registry."};
+
+    Setting<bool> ignoreSymlinkStore{
+        this, false, "ignore-symlink-store",
+        R"(
+	  If set to `true`, Nix will stop complaining if the store directory
+	  (typically /nix/store) contains symlink components.
+
+	  This risks making some builds "impure" because builders sometimes
+	  "canonicalise" paths by resolving all symlink components. Problems
+          occur if those builds are then deployed to machines where /nix/store
+          resolves to a different location from that of the build machine. You
+          can enable this setting if you are sure you're not going to do that.
+        )"};
 };
 
 
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