Get x86_64 compile to succeed.

* The changes to clone.S needs testing

Signed-off-by: Khem Raj <raj.khem@gmail.com>

libc/sysdeps/linux/x86_64/clone.S

@@ -109,7 +109,8 @@ clone:
 	call	*%rax
 	/* Call exit with return value from function call. */
 	movq	%rax, %rdi
-	call	HIDDEN_JUMPTARGET(_exit)
+	movl	$__NR_exit, %eax
+	syscall
 
 .size clone,.-clone
 weak_alias(clone, __clone)

libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch

@@ -18,8 +18,8 @@ libpthread_SSRC += lowlevellock.S pthread_barrier_wait.S pthread_cond_signal.S p
 		   sem_post.S sem_timedwait.S lowlevelrobustlock.S \
 		   sem_trywait.S sem_wait.S pthread_rwlock_rdlock.S pthread_rwlock_wrlock.S \
 		   pthread_rwlock_timedrdlock.S pthread_rwlock_timedwrlock.S pthread_rwlock_unlock.S \
-		   pthread_cond_timedwait.S pthread_cond_wait.S pthread_spin_unlock.S
-
+		   pthread_spin_unlock.S
+# pthread_cond_timedwait.S pthread_cond_wait.S
 libc_a_SSRC += libc-lowlevellock.S