nptl: Move core condition variable functions into libc

Onl pthread_cond_clockwait did not have a forwarder, so it needs
a new symbol version.

Some complications arise due to the need to supply hidden aliases,
GLIBC_PRIVATE exports (for the C11 condition variable implementation
that still remains in libpthread) and 64-bit time_t stubs.

pthread_cond_broadcast, pthread_cond_signal,  pthread_cond_timedwait,
pthread_cond_wait, pthread_cond_clockwait have been moved using
scripts/move-symbol-to-libc.py.

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

13 files changed, 86 insertions, 122 deletions

diff --git a/nptl/Makefile b/nptl/Makefile
index 9f739e25d5..6b81fe6c58 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -47,8 +47,12 @@ routines = \
   lowlevellock \
   nptl_deallocate_tsd \
   nptl_nthreads \
+  old_pthread_cond_broadcast \
   old_pthread_cond_destroy \
   old_pthread_cond_init \
+  old_pthread_cond_signal \
+  old_pthread_cond_timedwait \
+  old_pthread_cond_wait \
   pthread_atfork \
   pthread_attr_copy \
   pthread_attr_destroy \
@@ -69,8 +73,11 @@ routines = \
   pthread_attr_setsigmask \
   pthread_attr_setsigmask_internal \
   pthread_cleanup_upto \
+  pthread_cond_broadcast \
   pthread_cond_destroy \
   pthread_cond_init \
+  pthread_cond_signal \
+  pthread_cond_wait \
   pthread_condattr_destroy \
   pthread_condattr_init \
   pthread_equal \
@@ -83,6 +90,7 @@ routines = \
   pthread_key_delete \
   pthread_keys \
   pthread_kill \
+  pthread_mutex_cond_lock \
   pthread_mutex_conf \
   pthread_mutex_consistent \
   pthread_mutex_destroy \
@@ -118,10 +126,6 @@ libpthread-routines = \
   nptl-init \
   nptlfreeres \
   old_pthread_atfork \
-  old_pthread_cond_broadcast \
-  old_pthread_cond_signal \
-  old_pthread_cond_timedwait \
-  old_pthread_cond_wait \
   pt-interp \
   pthread_attr_getaffinity \
   pthread_attr_getguardsize \
@@ -141,9 +145,6 @@ libpthread-routines = \
   pthread_barrierattr_setpshared \
   pthread_cancel \
   pthread_clockjoin \
-  pthread_cond_broadcast \
-  pthread_cond_signal \
-  pthread_cond_wait \
   pthread_condattr_getclock \
   pthread_condattr_getpshared \
   pthread_condattr_setclock \
@@ -157,7 +158,6 @@ libpthread-routines = \
   pthread_join \
   pthread_join_common \
   pthread_kill_other_threads \
-  pthread_mutex_cond_lock \
   pthread_mutex_getprioceiling \
   pthread_mutex_setprioceiling \
   pthread_mutex_timedlock \
diff --git a/nptl/Versions b/nptl/Versions
index 7672831e3a..2c2c5c2078 100644
--- a/nptl/Versions
+++ b/nptl/Versions
@@ -96,6 +96,9 @@ libc {
     thrd_sleep;
     thrd_yield;
   }
+  GLIBC_2.30 {
+    pthread_cond_clockwait;
+  }
   GLIBC_2.32 {
     pthread_attr_getsigmask_np;
     pthread_attr_setaffinity_np;
@@ -114,6 +117,7 @@ libc {
     __pthread_mutex_unlock;
     __pthread_once;
     __pthread_setspecific;
+    pthread_cond_clockwait;
     pthread_getspecific;
     pthread_key_create;
     pthread_key_delete;
@@ -151,8 +155,12 @@ libc {
     __pthread_cleanup_pop;
     __pthread_cleanup_push;
     __pthread_cleanup_upto;
+    __pthread_cond_broadcast; # Used by the C11 threads.
     __pthread_cond_destroy; # Used by the C11 threads.
     __pthread_cond_init; # Used by the C11 threads.
+    __pthread_cond_signal; # Used by the C11 threads.
+    __pthread_cond_timedwait; # Used by the C11 threads.
+    __pthread_cond_wait; # Used by the C11 threads.
     __pthread_current_priority;
     __pthread_exit;
     __pthread_force_elision;
@@ -187,10 +195,6 @@ libpthread {
     funlockfile;
     pthread_atfork;
     pthread_cancel;
-    pthread_cond_broadcast;
-    pthread_cond_signal;
-    pthread_cond_timedwait;
-    pthread_cond_wait;
     pthread_create;
     pthread_detach;
     pthread_join;
@@ -290,11 +294,7 @@ libpthread {
   }
 
   GLIBC_2.3.2 {
-    pthread_cond_broadcast;
-    pthread_cond_init;
-    pthread_cond_signal;
-    pthread_cond_timedwait;
-    pthread_cond_wait;
+    __libpthread_version_placeholder;
   }
 
   GLIBC_2.3.3 {
@@ -371,7 +371,6 @@ libpthread {
   }
 
   GLIBC_2.30 {
-    pthread_cond_clockwait;
     pthread_mutex_clocklock;
     pthread_rwlock_clockrdlock;
     pthread_rwlock_clockwrlock;
diff --git a/nptl/forward.c b/nptl/forward.c
index c914baec4f..c819ab6f2a 100644
--- a/nptl/forward.c
+++ b/nptl/forward.c
@@ -29,64 +29,3 @@
 /* Pointers to the libc functions.  */
 struct pthread_functions __libc_pthread_functions attribute_hidden;
 int __libc_pthread_functions_init attribute_hidden;
-
-
-#define FORWARD2(name, rettype, decl, params, defaction) \
-rettype									      \
-name decl								      \
-{									      \
-  if (!__libc_pthread_functions_init)					      \
-    defaction;								      \
-									      \
-  return PTHFCT_CALL (ptr_##name, params);				      \
-}
-
-#define FORWARD(name, decl, params, defretval) \
-  FORWARD2 (name, int, decl, params, return defretval)
-
-
-#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
-FORWARD2 (__pthread_cond_broadcast_2_0, int attribute_compat_text_section,
-	  (pthread_cond_2_0_t *cond), (cond), return 0)
-compat_symbol (libc, __pthread_cond_broadcast_2_0, pthread_cond_broadcast,
-	       GLIBC_2_0);
-#endif
-FORWARD (__pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0)
-versioned_symbol (libc, __pthread_cond_broadcast, pthread_cond_broadcast,
-		  GLIBC_2_3_2);
-
-#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
-FORWARD2 (__pthread_cond_signal_2_0, int attribute_compat_text_section,
-	  (pthread_cond_2_0_t *cond), (cond), return 0)
-compat_symbol (libc, __pthread_cond_signal_2_0, pthread_cond_signal,
-	       GLIBC_2_0);
-#endif
-FORWARD (__pthread_cond_signal, (pthread_cond_t *cond), (cond), 0)
-versioned_symbol (libc, __pthread_cond_signal, pthread_cond_signal,
-		  GLIBC_2_3_2);
-
-#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
-FORWARD2 (__pthread_cond_wait_2_0, int attribute_compat_text_section,
-	  (pthread_cond_2_0_t *cond, pthread_mutex_t *mutex), (cond, mutex),
-	  return 0)
-compat_symbol (libc, __pthread_cond_wait_2_0, pthread_cond_wait,
-	       GLIBC_2_0);
-#endif
-FORWARD (__pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex),
-	 (cond, mutex), 0)
-versioned_symbol (libc, __pthread_cond_wait, pthread_cond_wait,
-		  GLIBC_2_3_2);
-
-#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
-FORWARD2 (__pthread_cond_timedwait_2_0, int attribute_compat_text_section,
-	  (pthread_cond_2_0_t *cond, pthread_mutex_t *mutex,
-	   const struct timespec *abstime), (cond, mutex, abstime),
-	  return 0)
-compat_symbol (libc, __pthread_cond_timedwait_2_0, pthread_cond_timedwait,
-	       GLIBC_2_0);
-#endif
-FORWARD (__pthread_cond_timedwait,
-	 (pthread_cond_t *cond, pthread_mutex_t *mutex,
-	  const struct timespec *abstime), (cond, mutex, abstime), 0)
-versioned_symbol (libc, __pthread_cond_timedwait, pthread_cond_timedwait,
-		  GLIBC_2_3_2);
diff --git a/nptl/libpthread-compat.c b/nptl/libpthread-compat.c
index da537af76e..359a38173d 100644
--- a/nptl/libpthread-compat.c
+++ b/nptl/libpthread-compat.c
@@ -50,3 +50,8 @@ compat_symbol (libpthread, __libpthread_version_placeholder_1,
 compat_symbol (libpthread, __libpthread_version_placeholder_1,
 	       __libpthread_version_placeholder, GLIBC_2_2_6);
 #endif
+
+#if (SHLIB_COMPAT (libpthread, GLIBC_2_3_2, GLIBC_2_3_4))
+compat_symbol (libpthread, __libpthread_version_placeholder_1,
+	       __libpthread_version_placeholder, GLIBC_2_3_2);
+#endif
diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c
index 271a29cc64..48eb2e5118 100644
--- a/nptl/nptl-init.c
+++ b/nptl/nptl-init.c
@@ -52,16 +52,6 @@ static const char nptl_version[] __attribute_used__ = VERSION;
 #ifdef SHARED
 static const struct pthread_functions pthread_functions =
   {
-    .ptr___pthread_cond_broadcast = __pthread_cond_broadcast,
-    .ptr___pthread_cond_signal = __pthread_cond_signal,
-    .ptr___pthread_cond_wait = __pthread_cond_wait,
-    .ptr___pthread_cond_timedwait = __pthread_cond_timedwait,
-# if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
-    .ptr___pthread_cond_broadcast_2_0 = __pthread_cond_broadcast_2_0,
-    .ptr___pthread_cond_signal_2_0 = __pthread_cond_signal_2_0,
-    .ptr___pthread_cond_wait_2_0 = __pthread_cond_wait_2_0,
-    .ptr___pthread_cond_timedwait_2_0 = __pthread_cond_timedwait_2_0,
-# endif
     .ptr__nptl_setxid = __nptl_setxid,
   };
 # define ptr_pthread_functions &pthread_functions
diff --git a/nptl/old_pthread_cond_broadcast.c b/nptl/old_pthread_cond_broadcast.c
index 4224ad9cf3..75d85139e2 100644
--- a/nptl/old_pthread_cond_broadcast.c
+++ b/nptl/old_pthread_cond_broadcast.c
@@ -23,7 +23,7 @@
 #include <shlib-compat.h>
 
 
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
+#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3_2)
 int
 __pthread_cond_broadcast_2_0 (pthread_cond_2_0_t *cond)
 {
diff --git a/nptl/old_pthread_cond_signal.c b/nptl/old_pthread_cond_signal.c
index bab12fd57f..4c7eb0ad0a 100644
--- a/nptl/old_pthread_cond_signal.c
+++ b/nptl/old_pthread_cond_signal.c
@@ -23,7 +23,7 @@
 #include <shlib-compat.h>
 
 
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
+#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3_2)
 int
 __pthread_cond_signal_2_0 (pthread_cond_2_0_t *cond)
 {
diff --git a/nptl/old_pthread_cond_timedwait.c b/nptl/old_pthread_cond_timedwait.c
index fdddf3072f..985426ec1a 100644
--- a/nptl/old_pthread_cond_timedwait.c
+++ b/nptl/old_pthread_cond_timedwait.c
@@ -23,7 +23,7 @@
 #include <shlib-compat.h>
 
 
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
+#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3_2)
 int
 __pthread_cond_timedwait_2_0 (pthread_cond_2_0_t *cond, pthread_mutex_t *mutex,
 			      const struct timespec *abstime)
diff --git a/nptl/old_pthread_cond_wait.c b/nptl/old_pthread_cond_wait.c
index 156493d6be..91b421a55b 100644
--- a/nptl/old_pthread_cond_wait.c
+++ b/nptl/old_pthread_cond_wait.c
@@ -23,7 +23,7 @@
 #include <shlib-compat.h>
 
 
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
+#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3_2)
 int
 __pthread_cond_wait_2_0 (pthread_cond_2_0_t *cond, pthread_mutex_t *mutex)
 {
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
index 332744ec6a..14f2bd9535 100644
--- a/nptl/pthreadP.h
+++ b/nptl/pthreadP.h
@@ -463,13 +463,16 @@ libc_hidden_proto (__pthread_rwlock_wrlock)
 extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock);
 extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock);
 extern int __pthread_cond_broadcast (pthread_cond_t *cond);
+libc_hidden_proto (__pthread_cond_broadcast)
 extern int __pthread_cond_destroy (pthread_cond_t *cond);
 libc_hidden_proto (__pthread_cond_destroy)
 extern int __pthread_cond_init (pthread_cond_t *cond,
 				const pthread_condattr_t *cond_attr);
 libc_hidden_proto (__pthread_cond_init)
 extern int __pthread_cond_signal (pthread_cond_t *cond);
+libc_hidden_proto (__pthread_cond_signal)
 extern int __pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex);
+libc_hidden_proto (__pthread_cond_wait)
 
 #if __TIMESIZE == 64
 # define __pthread_clockjoin_np64 __pthread_clockjoin_np
@@ -493,12 +496,12 @@ libpthread_hidden_proto (__pthread_timedjoin_np64)
 extern int __pthread_cond_timedwait64 (pthread_cond_t *cond,
                                        pthread_mutex_t *mutex,
                                        const struct __timespec64 *abstime);
-libpthread_hidden_proto (__pthread_cond_timedwait64)
+libc_hidden_proto (__pthread_cond_timedwait64)
 extern int __pthread_cond_clockwait64 (pthread_cond_t *cond,
                                        pthread_mutex_t *mutex,
                                        clockid_t clockid,
                                        const struct __timespec64 *abstime);
-libpthread_hidden_proto (__pthread_cond_clockwait64)
+libc_hidden_proto (__pthread_cond_clockwait64)
 extern int __pthread_rwlock_clockrdlock64 (pthread_rwlock_t *rwlock,
                                            clockid_t clockid,
                                            const struct __timespec64 *abstime);
@@ -525,11 +528,13 @@ libpthread_hidden_proto (__pthread_mutex_timedlock64)
 extern int __pthread_cond_timedwait (pthread_cond_t *cond,
 				     pthread_mutex_t *mutex,
 				     const struct timespec *abstime);
+libc_hidden_proto (__pthread_cond_timedwait)
 extern int __pthread_cond_clockwait (pthread_cond_t *cond,
 				     pthread_mutex_t *mutex,
 				     clockid_t clockid,
 				     const struct timespec *abstime)
   __nonnull ((1, 2, 4));
+libc_hidden_proto (__pthread_cond_clockwait)
 extern int __pthread_condattr_destroy (pthread_condattr_t *attr);
 extern int __pthread_condattr_init (pthread_condattr_t *attr);
 extern int __pthread_key_create (pthread_key_t *key, void (*destr) (void *));
diff --git a/nptl/pthread_cond_broadcast.c b/nptl/pthread_cond_broadcast.c
index e64e124b5b..4af99544d2 100644
--- a/nptl/pthread_cond_broadcast.c
+++ b/nptl/pthread_cond_broadcast.c
@@ -36,7 +36,7 @@
    G1.  We don't need to do all these steps if there are no waiters in G1
    and/or G2.  See __pthread_cond_signal for further details.  */
 int
-__pthread_cond_broadcast (pthread_cond_t *cond)
+___pthread_cond_broadcast (pthread_cond_t *cond)
 {
   LIBC_PROBE (cond_broadcast, 1, cond);
 
@@ -87,6 +87,8 @@ __pthread_cond_broadcast (pthread_cond_t *cond)
 
   return 0;
 }
-
-versioned_symbol (libpthread, __pthread_cond_broadcast, pthread_cond_broadcast,
-		  GLIBC_2_3_2);
+versioned_symbol (libc, ___pthread_cond_broadcast,
+		  pthread_cond_broadcast, GLIBC_2_3_2);
+libc_hidden_ver (___pthread_cond_broadcast, __pthread_cond_broadcast)
+versioned_symbol (libc, ___pthread_cond_broadcast,
+		  __pthread_cond_broadcast, GLIBC_PRIVATE);
diff --git a/nptl/pthread_cond_signal.c b/nptl/pthread_cond_signal.c
index 77073342b2..17b4a69702 100644
--- a/nptl/pthread_cond_signal.c
+++ b/nptl/pthread_cond_signal.c
@@ -32,7 +32,7 @@
 
 /* See __pthread_cond_wait for a high-level description of the algorithm.  */
 int
-__pthread_cond_signal (pthread_cond_t *cond)
+___pthread_cond_signal (pthread_cond_t *cond)
 {
   LIBC_PROBE (cond_signal, 1, cond);
 
@@ -95,6 +95,8 @@ __pthread_cond_signal (pthread_cond_t *cond)
 
   return 0;
 }
-
-versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal,
+versioned_symbol (libpthread, ___pthread_cond_signal, pthread_cond_signal,
 		  GLIBC_2_3_2);
+libc_hidden_ver (___pthread_cond_signal, __pthread_cond_signal)
+versioned_symbol (libpthread, ___pthread_cond_signal,
+		  __pthread_cond_signal, GLIBC_PRIVATE);
diff --git a/nptl/pthread_cond_wait.c b/nptl/pthread_cond_wait.c
index a481bb55fc..5a1642b932 100644
--- a/nptl/pthread_cond_wait.c
+++ b/nptl/pthread_cond_wait.c
@@ -613,16 +613,22 @@ __pthread_cond_wait_common (pthread_cond_t *cond, pthread_mutex_t *mutex,
 
 /* See __pthread_cond_wait_common.  */
 int
-__pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex)
+___pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex)
 {
   /* clockid is unused when abstime is NULL. */
   return __pthread_cond_wait_common (cond, mutex, 0, NULL);
 }
 
+versioned_symbol (libc, ___pthread_cond_wait, pthread_cond_wait,
+		  GLIBC_2_3_2);
+libc_hidden_ver (___pthread_cond_wait, __pthread_cond_wait)
+versioned_symbol (libc, ___pthread_cond_wait, __pthread_cond_wait,
+		  GLIBC_PRIVATE);
+
 /* See __pthread_cond_wait_common.  */
 int
-__pthread_cond_timedwait64 (pthread_cond_t *cond, pthread_mutex_t *mutex,
-                            const struct __timespec64 *abstime)
+___pthread_cond_timedwait64 (pthread_cond_t *cond, pthread_mutex_t *mutex,
+			     const struct __timespec64 *abstime)
 {
   /* Check parameter validity.  This should also tell the compiler that
      it can assume that abstime is not NULL.  */
@@ -637,29 +643,33 @@ __pthread_cond_timedwait64 (pthread_cond_t *cond, pthread_mutex_t *mutex,
   return __pthread_cond_wait_common (cond, mutex, clockid, abstime);
 }
 
-#if __TIMESIZE != 64
-libpthread_hidden_def (__pthread_cond_timedwait64)
+#if __TIMESIZE == 64
+strong_alias (___pthread_cond_timedwait64, ___pthread_cond_timedwait)
+#else
+versioned_symbol (libc, ___pthread_cond_timedwait64,
+		  __pthread_cond_timedwait64, GLIBC_PRIVATE);
+libc_hidden_ver (___pthread_cond_timedwait64, __pthread_cond_timedwait64)
 
 int
-__pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex,
-                          const struct timespec *abstime)
+___pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex,
+			    const struct timespec *abstime)
 {
   struct __timespec64 ts64 = valid_timespec_to_timespec64 (*abstime);
 
   return __pthread_cond_timedwait64 (cond, mutex, &ts64);
 }
-#endif
-
-versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait,
-		  GLIBC_2_3_2);
-versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait,
-		  GLIBC_2_3_2);
+#endif /* __TIMESIZE == 64 */
+versioned_symbol (libc, ___pthread_cond_timedwait,
+		  pthread_cond_timedwait, GLIBC_2_3_2);
+libc_hidden_ver (___pthread_cond_timedwait, __pthread_cond_timedwait)
+versioned_symbol (libc, ___pthread_cond_timedwait,
+		  __pthread_cond_timedwait, GLIBC_PRIVATE);
 
 /* See __pthread_cond_wait_common.  */
 int
-__pthread_cond_clockwait64 (pthread_cond_t *cond, pthread_mutex_t *mutex,
-                            clockid_t clockid,
-                            const struct __timespec64 *abstime)
+___pthread_cond_clockwait64 (pthread_cond_t *cond, pthread_mutex_t *mutex,
+			      clockid_t clockid,
+			      const struct __timespec64 *abstime)
 {
   /* Check parameter validity.  This should also tell the compiler that
      it can assume that abstime is not NULL.  */
@@ -672,11 +682,15 @@ __pthread_cond_clockwait64 (pthread_cond_t *cond, pthread_mutex_t *mutex,
   return __pthread_cond_wait_common (cond, mutex, clockid, abstime);
 }
 
-#if __TIMESIZE != 64
-libpthread_hidden_def (__pthread_cond_clockwait64)
+#if __TIMESIZE == 64
+strong_alias (___pthread_cond_clockwait64, ___pthread_cond_clockwait)
+#else
+versioned_symbol (libc, ___pthread_cond_clockwait64,
+		  __pthread_cond_clockwait64, GLIBC_PRIVATE);
+libc_hidden_ver (___pthread_cond_clockwait64, __pthread_cond_clockwait64)
 
 int
-__pthread_cond_clockwait (pthread_cond_t *cond, pthread_mutex_t *mutex,
+___pthread_cond_clockwait (pthread_cond_t *cond, pthread_mutex_t *mutex,
                           clockid_t clockid,
                           const struct timespec *abstime)
 {
@@ -684,5 +698,13 @@ __pthread_cond_clockwait (pthread_cond_t *cond, pthread_mutex_t *mutex,
 
   return __pthread_cond_clockwait64 (cond, mutex, clockid, &ts64);
 }
+#endif /* __TIMESIZE == 64 */
+versioned_symbol (libc, ___pthread_cond_clockwait,
+		  __pthread_cond_clockwait, GLIBC_PRIVATE);
+libc_hidden_ver (___pthread_cond_clockwait, __pthread_cond_clockwait)
+versioned_symbol (libc, ___pthread_cond_clockwait,
+		  pthread_cond_clockwait, GLIBC_2_34);
+#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_30, GLIBC_2_34)
+compat_symbol (libpthread, ___pthread_cond_clockwait,
+	       pthread_cond_clockwait, GLIBC_2_30);
 #endif
-weak_alias (__pthread_cond_clockwait, pthread_cond_clockwait);