1 files changed, 9 insertions, 0 deletions
diff --git a/src/nix-store/dotgraph.hh b/src/nix-store/dotgraph.hh
new file mode 100644
index 000000000000..68410d84156d
--- /dev/null
+++ b/src/nix-store/dotgraph.hh
@@ -0,0 +1,9 @@
+#pragma once
+
+#include "types.hh"
+
+namespace nix {
+
+void printDotGraph(const PathSet & roots);
+
+}