android: Qt 6 intermittently gets error: No platform plugin (libplugins_platforms_qtforandroid.so) included in the deployment

[mappu]

The android Qt 6 support was added to CI in #177 to solve issue #146. At that time, the CI pipeline passed.

However, with no code changes, it started failing in #178 and was deactivated from Github Actions.

The error is:

docker run --rm -v $(pwd):/src -w /src/examples/android6 miqt/android:qt6 androiddeployqt --input ./deployment-settings.json --output ./android-build/
Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8.
Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead.
If this causes problems, reconfigure your locale. See the locale(1) manual
for more information.
Generating Android Package
  Input file: ./deployment-settings.json
  Output directory: /src/examples/android6/android-build/
  Application binary: RealAppName
  Android build platform: android-33
  Install to device: No
Error: qmlimportscanner not found at /qmlimportscanner
No platform plugin (libplugins_platforms_qtforandroid.so) included in the deployment. Make sure the app links to Qt Gui library.
Skipping createRCC

Some ideas:

• Find any sources of nondeterminism in the build (linking order?)
• Is the locale issue really a problem? Try with LC_ALL=en_US.UTF-8
• Check if the .so is mentioned in the ELF imports
  • Yes, it does seem to be present
• Instead of using a stub .so, use patchelf or similar to rename imports on the Go binary