From 24b35bf9e7219feba9399466c41801f0ace3ef74 Mon Sep 17 00:00:00 2001
From: Nick Van den Broeck <nick.van.den.broeck666@gmail.com>
Date: Thu, 21 Mar 2019 09:30:16 +0100
Subject: Fixed issue #13

---
 src/libexpr/eval.hh | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/libexpr/eval.hh')

diff --git a/src/libexpr/eval.hh b/src/libexpr/eval.hh
index 3f537da89..44988cd70 100644
--- a/src/libexpr/eval.hh
+++ b/src/libexpr/eval.hh
@@ -63,6 +63,8 @@ typedef std::list<SearchPathElem> SearchPath;
 /* Initialise the Boehm GC, if applicable. */
 void initGC();
 
+typedef std::vector<std::pair<std::string, std::string>> RegistryOverrides;
+
 
 class EvalState
 {
@@ -89,6 +91,9 @@ public:
 
     const ref<Store> store;
 
+    RegistryOverrides registryOverrides;
+
+
 private:
     SrcToStore srcToStore;
 
@@ -211,6 +216,8 @@ public:
        path.  Nothing is copied to the store. */
     Path coerceToPath(const Pos & pos, Value & v, PathSet & context);
 
+    void addRegistryOverrides(RegistryOverrides overrides) { registryOverrides = overrides; }
+
 public:
 
     /* The base environment, containing the builtin functions and
-- 
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