1 files changed, 5 insertions, 3 deletions
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index 5783d9bf3..1fb196db2 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -10,6 +10,8 @@ namespace nix {
 
 struct Settings {
 
+    typedef std::map<string, string> SettingsMap;
+
     Settings();
 
     void processEnvironment();
@@ -22,6 +24,8 @@ struct Settings {
 
     string pack();
 
+    SettingsMap getOverrides();
+
     /* The directory where we store sources and derived files. */
     Path nixStore;
 
@@ -172,9 +176,7 @@ struct Settings {
     bool envKeepDerivations;
 
 private:
-    typedef std::map<string, string> SettingsMap;
-
-    SettingsMap settings;
+    SettingsMap settings, overrides;
 
     void get(string & res, const string & name);
     void get(bool & res, const string & name);