+/*
+ * This software is part of the SBCL system. See the README file for
+ * more information.
+ *
+ * This software is derived from the CMU CL system, which was
+ * written at Carnegie Mellon University and released into the
+ * public domain. The software is in the public domain and is
+ * provided with absolutely no warranty. See the COPYING and CREDITS
+ * files for more information.
+ */
+
+#ifndef __PTHREAD_LUTEX_H__
+#define __PTHREAD_LUTEX_H__
+
+#if defined(LISP_FEATURE_SB_THREAD) && defined(LISP_FEATURE_SB_LUTEX)
+
+typedef unsigned long tagged_lutex_t;
+
+extern int lutex_init (tagged_lutex_t tagged_lutex);
+extern int lutex_destroy (tagged_lutex_t tagged_lutex);
+
+#endif
+
+#endif /* __PTHREAD_LUTEX_H__ */