1 files changed, 6 insertions, 0 deletions

diff --git a/crypto/compat/thread_private.h b/crypto/compat/thread_private.h
new file mode 100644
index 0000000..3286a7c
--- /dev/null
+++ b/crypto/compat/thread_private.h
@@ -0,0 +1,6 @@
+#include <pthread.h>
+
+static pthread_mutex_t arc4random_mtx = PTHREAD_MUTEX_INITIALIZER;
+
+#define _ARC4_LOCK()   pthread_mutex_lock(&arc4random_mtx)
+#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)