Undefined symbols for architecture x86_64: "__ZThn36_NK13QOpenGLWindow10redirectedEP6QPoint", referenced from"__ZThn36_NK13QOpenGLWindow6metricEN12QPaintDevice17PaintDeviceMetricE", referenced from "__ZThn36_NK18QPaintDeviceWindow11paintEngineEv", referenced from
000000000009a720 T __ZNK13QOpenGLWindow10redirectedEP6QPoint000000000009a7a0 T __ZThn40_NK13QOpenGLWindow10redirectedEP6QPoint
__ZThn36_NK13QOpenGLWindow10redirectedEP6QPoint
__ZThn40_NK13QOpenGLWindow10redirectedEP6QPoint
_non-virtual thunk to QOpenGLWindow::redirected(QPoint*) const
use a "Th" prefix and encode the required adjustment offset, probably negative, indicated by a 'n' prefix, and the encoding of the target function.