On iOS compiling: call to non-static member function without an object argument

[lqsa]

I've this code:

GPSMessages::GPSMessages(GPSManager &gpsManager): _message(nullptr)
{
    connect(&gpsManager, GPSManager::onGpsFound, this, GPSMessages::onGpsFound);
    connect(&gpsManager, GPSManager::onGpsNotFound, this, GPSMessages::onGpsNotFound);
}

GPSMessages::GPSMessages(GPSManager &gpsManager): _message(nullptr)
{
    connect(&gpsManager, GPSManager::onGpsFound, this, GPSMessages::onGpsFound);
    connect(&gpsManager, GPSManager::onGpsNotFound, this, GPSMessages::onGpsNotFound);
}

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Compiling for Android works well, but If compile with iOS appears this error:

error: call to non-static member function without an object argument
    connect(&gpsManager, GPSManager::onGpsFound, this, GPSMessages::onGpsFound);

error: call to non-static member function without an object argument
    connect(&gpsManager, GPSManager::onGpsFound, this, GPSMessages::onGpsFound);

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Qt for iOS supports this or must to use the SIGNAL and SLOT macro?