1 files changed, 40 insertions, 0 deletions
diff --git a/lib/gthreads.h b/lib/gthreads.h
new file mode 100644
index 0000000..72bdb56
--- /dev/null
+++ b/lib/gthreads.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2018 Red Hat, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of GnuTLS.
+ *
+ * The GnuTLS is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>
+ *
+ */
+
+#ifndef GNUTLS_LIB_GTHREADS_H
+#define GNUTLS_LIB_GTHREADS_H
+
+#include <config.h>
+
+/* Using a C99-only compiler installed in parallel with modern C11 environment
+ * will see HAVE_THREADS_H, but won't be able to use _Thread_local. */
+#if __STDC_VERSION__ >= 201112 && !defined(__STDC_NO_THREADS__) && defined(HAVE_THREADS_H)
+# include <threads.h>
+#elif defined(__GNUC__) || defined(__SUNPRO_C) || defined(__xlC__) /* clang is covered by __GNUC__ */
+# define _Thread_local __thread
+#elif defined(_MSC_VER)
+# define _Thread_local __declspec(thread)
+#else
+# error Unsupported platform
+#endif
+
+#endif /* GNUTLS_LIB_GTHREADS_H */