Could not find qmake spec 'macx-clang'

[FahadSec]

Expected Behavior

sip-wheel complete successfully without errors

Current Behavior

Querying qmake about your Qt installation...
/usr/local/bin/qmake -query
These bindings will be built: QTermWidget.
Generating the QTermWidget bindings...
sip-wheel: qtermwidget/pyqt/sip/qtermwidget.sip: line 49: column 23: 'QTextCodec' is undefined

Context

I'm trying to build PyQt bindings and I'm following the example in https://github.com/lxqt/qtermwidget/blob/master/.ci/build.sh. I have already built and installed all the needed dependencies.

System Information

• Distribution & Version: Mac OS 12.6.1
• Kernel: Mac OS
• Qt Version: 6.3.2 (but I also have qt5 installed)
• lxqt-build-tools Version: 0.11.0
• Package version: I'm not sure what is this asking for exactly

[yan12125]

Qt Version: 6.3.2

QTermWidget does not support Qt 6 yet. Most likely you need to tell sip-wheel to use Qt 5.

[FahadSec]

How do I tell sip-wheel to use Qt 5?

[yan12125]

Specifying the path to qmake from Qt 5 should work. For example,

sip-wheel --verbose --qmake /usr/bin/qmake-qt5

[FahadSec]

I did
CXXFLAGS="-I$PWD/../lib -I$PWD/../build/lib" LDFLAGS="-L$PWD/../build" sip-wheel --verbose --qmake /usr/local/lib/python3.10/site-packages/qt5_applications/Qt/bin/qmake

and got

Querying qmake about your Qt installation...
/usr/local/lib/python3.10/site-packages/qt5_applications/Qt/bin/qmake -query
These bindings will be built: QTermWidget.
Generating the QTermWidget bindings...
Generating the .pro file for the QTermWidget module...
Generating the top-level .pro file...
Generating the Makefiles...
/usr/local/lib/python3.10/site-packages/qt5_applications/Qt/bin/qmake -recursive QTermWidget.pro
Could not find qmake spec 'macx-clang'.
Error processing project file: QTermWidget.pro
sip-wheel: '/usr/local/lib/python3.10/site-packages/qt5_applications/Qt/bin/qmake -recursive QTermWidget.pro' failed returning 3

[yan12125]

On my machine (Arch Linux), the qmake spec 'macx-clang' is in /usr/lib/qt/mkspecs/macx-clang. Not sure if something goes wrong for Qt on macOS - I no longer have macOS for testing, anyway.

By the way, the path /usr/local/lib/python3.10/site-packages/qt5_applications/Qt/bin/qmake does not seem a standard Qt installation. qmake is part of C/C++ Qt and is generally unrelated to Python.