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-rw-r--r--third_party/nix/src/nix-store/dotgraph.hh11
1 files changed, 11 insertions, 0 deletions
diff --git a/third_party/nix/src/nix-store/dotgraph.hh b/third_party/nix/src/nix-store/dotgraph.hh
new file mode 100644
index 000000000000..20fc357b1bd4
--- /dev/null
+++ b/third_party/nix/src/nix-store/dotgraph.hh
@@ -0,0 +1,11 @@
+#pragma once
+
+#include "types.hh"
+
+namespace nix {
+
+class Store;
+
+void printDotGraph(const ref<Store>& store, const PathSet& roots);
+
+}  // namespace nix