Fix versions of forward symbols

* Versions (pthread_attr_destroy, pthread_attr_getdetachstate,
pthread_attr_getinheritsched, pthread_attr_getschedparam,
pthread_attr_getschedpolicy, pthread_attr_getscope, pthread_attr_init,
pthread_attr_setdetachstate, pthread_attr_setinheritsched,
pthread_attr_setschedparam, pthread_attr_setschedpolicy,
pthread_attr_setscope, pthread_condattr_destroy, pthread_condattr_init,
pthread_cond_broadcast, pthread_cond_destroy, pthread_cond_init,
pthread_cond_signal, pthread_cond_wait, pthread_cond_timedwait,
pthread_equal, pthread_exit, pthread_getschedparam,
pthread_setschedparam, pthread_mutex_destroy, pthread_mutex_init,
pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock,
pthread_self, pthread_setcancelstate, pthread_setcanceltype,
__pthread_get_cleanup_stack): Move to GLIBC_2.21.

1 files changed, 1 insertions, 1 deletions

diff --git a/Versions b/Versions
index 9d41b0c..79bb564 100644
--- a/Versions
+++ b/Versions
@@ -1,5 +1,5 @@
 libc {
-  GLIBC_2.13 {
+  GLIBC_2.21 {
     pthread_attr_destroy; pthread_attr_getdetachstate;
     pthread_attr_getinheritsched; pthread_attr_getschedparam;
     pthread_attr_getschedpolicy; pthread_attr_getscope; pthread_attr_init;