Guard a number of tests relying on threads support when built in

single-threaded mode.

Differential Revision: http://reviews.llvm.org/D14731



git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@264191 91177308-0d34-0410-b5e6-96231b3b80d8

test/libcxx/thread/thread.mutex/thread_safety_annotations_not_enabled.pass.cpp

@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: libcpp-has-no-threads
+
 // <mutex>
 
 // This test does not define _LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS so it

test/libcxx/thread/thread.mutex/thread_safety_lock_guard.pass.cpp

@@ -7,6 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: libcpp-has-no-threads
 // REQUIRES: thread-safety
 
 // <mutex>

test/libcxx/thread/thread.mutex/thread_safety_lock_unlock.pass.cpp

@@ -7,6 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: libcpp-has-no-threads
 // REQUIRES: thread-safety
 
 // <mutex>

test/libcxx/thread/thread.mutex/thread_safety_missing_unlock.fail.cpp

@@ -7,6 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: libcpp-has-no-threads
 // REQUIRES: thread-safety
 
 // <mutex>

test/libcxx/thread/thread.mutex/thread_safety_requires_capability.pass.cpp

@@ -7,6 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: libcpp-has-no-threads
 // REQUIRES: thread-safety
 
 // <mutex>