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-rw-r--r--src/libstore/globals.hh7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index fd3fbec9f017..dd01f832df0c 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -386,5 +386,12 @@ void initPlugins();
 
 extern const string nixVersion;
 
+struct RegisterSetting
+{
+    typedef std::vector<AbstractSetting *> SettingRegistrations;
+    static SettingRegistrations * settingRegistrations;
+    RegisterSetting(AbstractSetting * s);
+};
+
 
 }