From 517c4bce0f1c30f8868da9bf5a568c4db40e95ea Mon Sep 17 00:00:00 2001
From: Todd Lipcon <todd@cloudera.com>
Date: Tue, 21 Jan 2020 13:52:41 -0800
Subject: [PATCH] Add workaround for dense_hashtable move constructor in gcc
 4.8

---
 sparsehash/internal/densehashtable.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sparsehash/internal/densehashtable.h b/sparsehash/internal/densehashtable.h
index 72b3607..cc7ff69 100644
--- a/sparsehash/internal/densehashtable.h
+++ b/sparsehash/internal/densehashtable.h
@@ -739,7 +739,10 @@ class dense_hashtable {
   }
 
   dense_hashtable(dense_hashtable&& ht)
-      : dense_hashtable() {
+      // NOTE: redundantly set num_buckets = 0 for gcc 4.8.x compatibility.
+      // It can't find the dense_hashtable constructor unless at least one
+      // argument is set.
+      : dense_hashtable(0) {
     swap(ht);
   }
 
-- 
2.17.1