From 56fb1b9cba53f2357179ea4ce7482722cb84e074 Mon Sep 17 00:00:00 2001
From: Benau <Benau@users.noreply.github.com>
Date: Fri, 28 Feb 2020 09:35:07 +0800
Subject: [PATCH] Add header helper for thread local storage

---
 src/utils/tls.hpp | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 src/utils/tls.hpp

diff --git a/src/utils/tls.hpp b/src/utils/tls.hpp
new file mode 100644
index 000000000..6b7720701
--- /dev/null
+++ b/src/utils/tls.hpp
@@ -0,0 +1,42 @@
+//  SuperTuxKart - a fun racing game with go-kart
+//  Copyright (C) 2020 SuperTuxKart-Team
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License
+//  as published by the Free Software Foundation; either version 3
+//  of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+#ifndef HEADER_TLS_HPP
+#define HEADER_TLS_HPP
+
+#include <thread>
+
+#ifndef thread_local
+# if __STDC_VERSION__ >= 201112 && !defined __STDC_NO_THREADS__
+#  define thread_local _Thread_local
+# elif defined _WIN32 && ( \
+       defined _MSC_VER || \
+       defined __ICL || \
+       defined __DMC__ || \
+       defined __BORLANDC__ )
+#  define thread_local __declspec(thread)
+/* note that ICC (linux) and Clang are covered by __GNUC__ */
+# elif defined __GNUC__ || \
+       defined __SUNPRO_C || \
+       defined __xlC__
+#  define thread_local __thread
+# else
+#  error "Cannot define thread_local"
+# endif
+#endif
+
+#endif