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-rw-r--r--src/libstore/globals.hh3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index d25ee6adca30..953eed9c36a2 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -190,4 +190,7 @@ private:
 extern Settings settings;
 
 
+extern const string nixVersion;
+
+
 }