Add __next and __prev field to pthread_mutex_t.

diff --git a/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h b/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
index 86b4703..5004937 100644 (file)
--- a/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
+++ b/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
@@ -45,7 +45,7 @@ typedef union
 
 /* Data structures for mutex handling.  The structure of the attribute
    type is deliberately not exposed.  */
-typedef union
+typedef union __pthread_mutex_u
 {
   struct
   {
@@ -57,6 +57,9 @@ typedef union
        binary compatibility.  */
     int __kind;
     int __spins;
+    union __pthread_mutex_u *__next;
+    union __pthread_mutex_u *__prev;
+#define __PTHREAD_MUTEX_HAVE_PREV      1
   } __data;
   char __size[__SIZEOF_PTHREAD_MUTEX_T];
   long int __align;