gcc 9 has no default operator==.

1 files changed, 3 insertions, 1 deletions

diff --git a/storage/src/vespa/storage/distributor/node_supported_features.h b/storage/src/vespa/storage/distributor/node_supported_features.h
index fb9cc68e970..647e063f93e 100644
--- a/storage/src/vespa/storage/distributor/node_supported_features.h
+++ b/storage/src/vespa/storage/distributor/node_supported_features.h
@@ -13,7 +13,9 @@ namespace storage::distributor {
 struct NodeSupportedFeatures {
     bool unordered_merge_chaining = false;
 
-    bool operator==(const NodeSupportedFeatures&) const noexcept = default;
+    bool operator==(const NodeSupportedFeatures& rhs) const noexcept {
+        return unordered_merge_chaining == rhs.unordered_merge_chaining;
+    };
 };
 
 }