nptl: Add __pthread_attr_copy for copying pthread_attr_t objects

Also add the private type union pthread_attr_transparent, to reduce
the amount of casting that is required.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/nptl/Versions b/nptl/Versions
index 65f0c077da..4c7b43354d 100644
--- a/nptl/Versions
+++ b/nptl/Versions
@@ -60,6 +60,7 @@ libc {
     __pthread_cond_destroy; __pthread_cond_init;
     __pthread_attr_setaffinity_np;
     __pthread_attr_init; __pthread_attr_destroy;
+    __pthread_attr_copy;
   }
 }