From 180ad8d2d80039df1924e75d649fd4a1b3c7dda3 Mon Sep 17 00:00:00 2001
From: James Turner <james@flightgear.org>
Date: Wed, 26 May 2021 10:22:59 +0100
Subject: [PATCH] NavCache: avoid spurious message on rebuild

---
 src/Navaids/NavDataCache.cxx | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
 mode change 100644 => 100755 src/Navaids/NavDataCache.cxx

diff --git a/src/Navaids/NavDataCache.cxx b/src/Navaids/NavDataCache.cxx
old mode 100644
new mode 100755
index e5f1d4f63..be039718b
--- a/src/Navaids/NavDataCache.cxx
+++ b/src/Navaids/NavDataCache.cxx
@@ -290,10 +290,6 @@ public:
           throw sg_exception("Nav-cache file is not writeable");
       }
 
-      if (outer->isAnotherProcessRebuilding()) {
-          SG_LOG(SG_NAVCACHE, SG_ALERT, "NavDataCache: init() while another processing is rebuilding the DB");
-      }
-
       int openFlags = readOnly ? SQLITE_OPEN_READONLY :
         (SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE);
       std::string pathUtf8 = path.utf8Str();
@@ -1524,6 +1520,7 @@ bool NavDataCache::isAnotherProcessRebuilding()
         // (there could be multiple read-only copies in this situation)
         ReleaseMutex(static_fgNavCacheRebuildMutex);
         CloseHandle(static_fgNavCacheRebuildMutex);
+		static_fgNavCacheRebuildMutex = nullptr;
         return false;
     }