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-rw-r--r--nix/libstore/builtins.cc10
1 files changed, 10 insertions, 0 deletions
diff --git a/nix/libstore/builtins.cc b/nix/libstore/builtins.cc
index 605e44079a..32af767dc4 100644
--- a/nix/libstore/builtins.cc
+++ b/nix/libstore/builtins.cc
@@ -66,4 +66,14 @@ derivationBuilder lookupBuiltinBuilder(const std::string & name)
 	return NULL;
 }
 
+std::list<std::string> builtinBuilderNames()
+{
+    std::list<std::string> result;
+    for(auto&& iter: builtins)
+    {
+	result.push_back(iter.first);
+    }
+    return result;
+}
+
 }