1 files changed, 14 insertions, 0 deletions
diff --git a/newlib/libc/include/sys/types.h b/newlib/libc/include/sys/types.h
index 1813bdda8..3f1893c20 100644
--- a/newlib/libc/include/sys/types.h
+++ b/newlib/libc/include/sys/types.h
@@ -323,6 +323,17 @@ typedef struct {
 #define PTHREAD_PRIO_PROTECT 2
 #endif
 
+#if defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES)
+
+/* Values for mutex type */
+
+#define PTHREAD_MUTEX_NORMAL     0
+#define PTHREAD_MUTEX_RECURSIVE  1
+#define PTHREAD_MUTEX_ERRORCHECK 2
+#define PTHREAD_MUTEX_DEFAULT    3
+
+#endif
+
 typedef __uint32_t pthread_mutex_t;      /* identify a mutex */
 
 typedef struct {
@@ -334,6 +345,9 @@ typedef struct {
   int   prio_ceiling;
   int   protocol;
 #endif
+#if defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES)
+  int type;
+#endif
   int   recursive;
 } pthread_mutexattr_t;