From 507145d78595e052ce13368e122f72c85093992c Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Sun, 27 Nov 2016 15:11:49 -0800
Subject: [PATCH] Fix race when accessing std::locale::classic()

See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78552
---
 src/utiltime.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/utiltime.cpp b/src/utiltime.cpp
index da590f888..51d545ef8 100644
--- a/src/utiltime.cpp
+++ b/src/utiltime.cpp
@@ -74,8 +74,9 @@ void MilliSleep(int64_t n)
 
 std::string DateTimeStrFormat(const char* pszFormat, int64_t nTime)
 {
+    static std::locale classic(std::locale::classic());
     // std::locale takes ownership of the pointer
-    std::locale loc(std::locale::classic(), new boost::posix_time::time_facet(pszFormat));
+    std::locale loc(classic, new boost::posix_time::time_facet(pszFormat));
     std::stringstream ss;
     ss.imbue(loc);
     ss << boost::posix_time::from_time_t(nTime);