From 665072a36df2e4c88705fedd4ac7c955d7f6a488 Mon Sep 17 00:00:00 2001
From: James O'Beirne <james.obeirne@pm.me>
Date: Wed, 15 Sep 2021 15:46:29 -0400
Subject: [PATCH] doc: add comment for g_best_block

---
 src/validation.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/validation.h b/src/validation.h
index 4fc46439cc..d457f1ac65 100644
--- a/src/validation.h
+++ b/src/validation.h
@@ -109,6 +109,7 @@ extern RecursiveMutex cs_main;
 typedef std::unordered_map<uint256, CBlockIndex*, BlockHasher> BlockMap;
 extern Mutex g_best_block_mutex;
 extern std::condition_variable g_best_block_cv;
+/** Used to notify getblocktemplate RPC of new tips. */
 extern uint256 g_best_block;
 /** Whether there are dedicated script-checking threads running.
  * False indicates all script checking is done on the main threadMessageHandler thread.