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-rw-r--r--third_party/nix/src/libstore/store-api.hh3
1 files changed, 2 insertions, 1 deletions
diff --git a/third_party/nix/src/libstore/store-api.hh b/third_party/nix/src/libstore/store-api.hh
index 8d9c6f0861..b1c0b50de3 100644
--- a/third_party/nix/src/libstore/store-api.hh
+++ b/third_party/nix/src/libstore/store-api.hh
@@ -445,7 +445,8 @@ class Store : public std::enable_shared_from_this<Store>, public Config {
      output paths can be created by running the builder, after
      recursively building any sub-derivations. For inputs that are
      not derivations, substitute them. */
-  virtual void buildPaths(const PathSet& paths, BuildMode buildMode = bmNormal);
+  [[nodiscard]] virtual absl::Status buildPaths(const PathSet& paths,
+                                                BuildMode buildMode = bmNormal);
 
   /* Build a single non-materialized derivation (i.e. not from an
      on-disk .drv file). Note that ‘drvPath’ is only used for