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-rw-r--r--src/libstore/parsed-derivations.hh2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libstore/parsed-derivations.hh b/src/libstore/parsed-derivations.hh
index 0c7dc32e1e04..0a82c146172b 100644
--- a/src/libstore/parsed-derivations.hh
+++ b/src/libstore/parsed-derivations.hh
@@ -25,6 +25,8 @@ public:
 
     std::experimental::optional<Strings> getStringsAttr(const std::string & name) const;
 
+    StringSet getRequiredSystemFeatures() const;
+
     bool canBuildLocally() const;
 
     bool willBuildLocally() const;