py39-pyqt5 @5.14.2: object of type 'QSGGeometry' cannot be assigned because its copy assignment operator is implicitly deleted

[dliessi (Davide Liessi)]

The port py39-pyqt5 fails to build on ​10.8, ​10.9 and ​10.10 due to the following error:

/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_python_py-pyqt5/py39-pyqt5/work/PyQt5-5.14.2/QtQuick/sipQtQuickQSGGeometry.cpp:940:59: error: object of type 'QSGGeometry' cannot be assigned because its copy assignment operator is implicitly deleted
    reinterpret_cast< ::QSGGeometry *>(sipDst)[sipDstIdx] = *reinterpret_cast< ::QSGGeometry *>(sipSrc);
                                                          ^
/opt/local/libexec/qt5/lib/QtQuick.framework/Headers/qsggeometry.h:207:25: note: copy assignment operator of 'QSGGeometry' is implicitly deleted because field 'm_attributes' is of reference type 'const QSGGeometry::AttributeSet &'
    const AttributeSet &m_attributes;
                        ^

[chrstphrchvz (Christopher Chavez)]

@michaelld noticed this a few months back: ​https://github.com/macports/macports-ports/pull/8128#issuecomment-680952659

[ctreleaven (Craig Treleaven)]

I see from the port pages for py3x-pyqt5, that the port cannot be successfully built on OS X 10.10 or earlier. Is this fixable?

Eg:

​https://ports.macports.org/port/py38-pyqt5/summary

[reneeotten (Renee Otten)]

Fixed in this commit. The latest PyQt5 versions works with all Qt versions; there might be other, unrelated build failures on older OSes, but let's see what the buildbots make of it first.