avoid deadlock with OpenBSD
@@ -10,7 +10,7 @@ terms of the MIT license. A copy of the license can be found in the file
#include "mimalloc-types.h"
-#if defined(MI_MALLOC_OVERRIDE) && defined(__APPLE__)
+#if defined(MI_MALLOC_OVERRIDE) && (defined(__APPLE__) || defined(__OpenBSD__))
#define MI_TLS_RECURSE_GUARD
#endif
