#include <QtCore/qthread.h> #ifndef QTHREAD_H #ifndef QT_NO_THREAD class QThread: public QObject{ /* Some contents are skipped to improve readability */ public: static inline class QString tr(char const * s, char const * c = 0); /* ... */ }; #else // QT_NO_THREAD #endif // QT_NO_THREAD #endif // QTHREAD_H