1 files changed, 5 insertions, 13 deletions
diff --git a/src/corelib/io/qlockfile.h b/src/corelib/io/qlockfile.h
index bc704ea28f..af481ab59b 100644
--- a/src/corelib/io/qlockfile.h
+++ b/src/corelib/io/qlockfile.h
@@ -7,9 +7,7 @@
 #include <QtCore/qstring.h>
 #include <QtCore/qscopedpointer.h>
 
-#if __has_include(<chrono>)
-#    include <chrono>
-#endif
+#include <chrono>
 
 QT_BEGIN_NAMESPACE
 
@@ -24,22 +22,16 @@ public:
     QString fileName() const;
 
     bool lock();
-    bool tryLock(int timeout = 0);
+    bool tryLock(int timeout);
     void unlock();
 
     void setStaleLockTime(int);
     int staleLockTime() const;
 
-#if __has_include(<chrono>)
-    bool tryLock(std::chrono::milliseconds timeout) { return tryLock(int(timeout.count())); }
+    bool tryLock(std::chrono::milliseconds timeout = std::chrono::milliseconds::zero());
 
-    void setStaleLockTime(std::chrono::milliseconds value) { setStaleLockTime(int(value.count())); }
-
-    std::chrono::milliseconds staleLockTimeAsDuration() const
-    {
-        return std::chrono::milliseconds(staleLockTime());
-    }
-#endif
+    void setStaleLockTime(std::chrono::milliseconds value);
+    std::chrono::milliseconds staleLockTimeAsDuration() const;
 
     bool isLocked() const;
     bool getLockInfo(qint64 *pid, QString *hostname, QString *appname) const;