3 files changed, 16 insertions, 2 deletions
diff --git a/src/corelib/thread/qthread.h b/src/corelib/thread/qthread.h
index 3df76077e1..19951e844a 100644
--- a/src/corelib/thread/qthread.h
+++ b/src/corelib/thread/qthread.h
@@ -247,6 +247,10 @@ public:
     static Qt::HANDLE currentThreadId() { return Qt::HANDLE(currentThread()); }
     static QThread* currentThread();
 
+    static void sleep(unsigned long);
+    static void msleep(unsigned long);
+    static void usleep(unsigned long);
+
 protected:
     QThread(QThreadPrivate &dd, QObject *parent = nullptr);
 
diff --git a/src/corelib/thread/qthread_unix.cpp b/src/corelib/thread/qthread_unix.cpp
index 9ad32b162d..c5de46d07d 100644
--- a/src/corelib/thread/qthread_unix.cpp
+++ b/src/corelib/thread/qthread_unix.cpp
@@ -519,6 +519,8 @@ void QThread::yieldCurrentThread()
     sched_yield();
 }
 
+#endif // QT_NO_THREAD
+
 static timespec makeTimespec(time_t secs, long nsecs)
 {
     struct timespec ts;
@@ -542,6 +544,8 @@ void QThread::usleep(unsigned long usecs)
     qt_nanosleep(makeTimespec(usecs / 1000 / 1000, usecs % (1000*1000) * 1000));
 }
 
+#ifndef QT_NO_THREAD
+
 #ifdef QT_HAS_THREAD_PRIORITY_SCHEDULING
 #if defined(Q_OS_QNX)
 static bool calculateUnixPriority(int priority, int *sched_policy, int *sched_priority)
diff --git a/src/corelib/thread/qthread_win.cpp b/src/corelib/thread/qthread_win.cpp
index 4459ae87af..6c9f939b7d 100644
--- a/src/corelib/thread/qthread_win.cpp
+++ b/src/corelib/thread/qthread_win.cpp
@@ -61,9 +61,10 @@
 #  include <process.h>
 #endif // Q_OS_WINRT
 
-#ifndef QT_NO_THREAD
 QT_BEGIN_NAMESPACE
 
+#ifndef QT_NO_THREAD
+
 #ifdef Q_OS_WINRT
 inline DWORD qWinRTTlsAlloc() {
     return FlsAlloc(0);
@@ -449,6 +450,8 @@ void QThread::yieldCurrentThread()
 #endif
 }
 
+#endif // QT_NO_THREAD
+
 void QThread::sleep(unsigned long secs)
 {
     ::Sleep(secs * 1000);
@@ -464,6 +467,8 @@ void QThread::usleep(unsigned long usecs)
     ::Sleep((usecs / 1000) + 1);
 }
 
+#ifndef QT_NO_THREAD
+
 void QThread::start(Priority priority)
 {
     Q_D(QThread);
@@ -700,5 +705,6 @@ void QThreadPrivate::setPriority(QThread::Priority threadPriority)
     }
 }
 
-QT_END_NAMESPACE
 #endif // QT_NO_THREAD
+
+QT_END_NAMESPACE