qt5 update breaks build of qcad?

["John D. Baker" <jdbaker%consolidated.net@localhost>]

The update of qt5 from 5.13.0 to 5.13.1 breaks building 'qcad' as
follows on NetBSD/amd64-current (9.99.11):

[...]
=> Attending to hard-coded paths.
cd /tmp/pkgsrc/cad/qcad/work/qcad-3.23.0.0 && /usr/pkg/qt5/bin/qmake -r -after DESTDIR=
Info: creating stash file /tmp/pkgsrc/cad/qcad/work/qcad-3.23.0.0/.qmake.stash
Info: creating cache file /tmp/pkgsrc/cad/qcad/work/qcad-3.23.0.0/.qmake.cache
Reading /tmp/pkgsrc/cad/qcad/work/qcad-3.23.0.0/src/src.pro
 Reading /tmp/pkgsrc/cad/qcad/work/qcad-3.23.0.0/src/3rdparty/3rdparty.pro
Project ERROR: Script bindings not available for Qt version 5.13.1. You can add them to src/3rdparty/qt-labs-qtscriptgenerator-5.13.1 or use another version of Qt.
*** Error code 3

Stop.
make[1]: stopped in /x/pkgsrc/cad/qcad
*** Error code 1

Stop.
make: stopped in /x/pkgsrc/cad/qcad

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