nptl: Move pthread_cond_destroy implementation into libc

It is necessary to export __pthread_cond_destroy from libc because
the C11 condition variable needs it and is still left in libpthread.

This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/nptl/Versions b/nptl/Versions
index bc1bad0562..4dbe68d76c 100644
--- a/nptl/Versions
+++ b/nptl/Versions
@@ -39,6 +39,8 @@ libc {
     __libc_pthread_init;
     __libc_current_sigrtmin_private; __libc_current_sigrtmax_private;
     __libc_allocate_rtsig_private;
+    # Used by the C11 threads implementation.
+    __pthread_cond_destroy;
   }
 }
 
@@ -54,7 +56,7 @@ libpthread {
 
     pthread_mutexattr_init; pthread_mutexattr_destroy;
 
-    pthread_cond_init; pthread_cond_destroy;
+    pthread_cond_init;
     pthread_cond_wait; pthread_cond_timedwait;
     pthread_cond_signal; pthread_cond_broadcast;
 
@@ -193,7 +195,7 @@ libpthread {
 
   GLIBC_2.3.2 {
     # Changed pthread_cond_t.
-    pthread_cond_init; pthread_cond_destroy;
+    pthread_cond_init;
     pthread_cond_wait; pthread_cond_timedwait;
     pthread_cond_signal; pthread_cond_broadcast;
   }