I've tried to google and find the proper defines to use for different Mac related operating systems. Does anyone know offhand which defines to use for which OSes (moving forward for Qt 5.2+)? Is this correct? Q_OS_MAC - Mac OSX and iOS Q_OS_MACX - Mac OSX Q_OS_OSX - Mac OSX (any difference with Q_OS_MACX, are both valid?) Q_OS_IOS - Mac iOS Thanks. Josh