#include <QtCore/qreadwritelock.h> #ifndef QREADWRITELOCK_H #ifndef QT_NO_THREAD class QReadWriteLock{ /* Some contents are skipped to improve readability */ private: struct QReadWriteLockPrivate* d; /* ... */ }; #else // QT_NO_THREAD #endif // QT_NO_THREAD #endif // QREADWRITELOCK_H