Index: llvm-toolchain-snapshot_9~svn357176/libcxx/test/std/thread/thread.condition/thread.condition.condvar/wait_for.pass.cpp
===================================================================
--- llvm-toolchain-snapshot_9~svn357176.orig/libcxx/test/std/thread/thread.condition/thread.condition.condvar/wait_for.pass.cpp
+++ llvm-toolchain-snapshot_9~svn357176/libcxx/test/std/thread/thread.condition/thread.condition.condvar/wait_for.pass.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 //
 // UNSUPPORTED: libcpp-has-no-threads
+// XFAIL: *
 
 // FLAKY_TEST.
 
Index: llvm-toolchain-snapshot_9~svn357176/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.shared/thread.lock.shared.locking/lock.pass.cpp
===================================================================
--- llvm-toolchain-snapshot_9~svn357176.orig/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.shared/thread.lock.shared.locking/lock.pass.cpp
+++ llvm-toolchain-snapshot_9~svn357176/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.shared/thread.lock.shared.locking/lock.pass.cpp
@@ -8,7 +8,7 @@
 //
 // UNSUPPORTED: libcpp-has-no-threads
 // UNSUPPORTED: c++98, c++03, c++11
-// XFAIL: dylib-has-no-shared_mutex
+// XFAIL: *
 
 // FLAKY_TEST.