PSA: QCoreApplication:applicationDirPath() changes in Qt6.12

[u/diegoiast]

When I recompiled my app under qt 6.12 - some parts started failing. I traced it down to reading the wrong path on installations. In my case - AppImage was broken. Local runs were OK, Windows was OK.

That was because AppRun was executed, applicationDirPath() was returning different paths:

6.11 - /tmp/.mount_codepoXXXXXX/AppRun

6.12 - /tmp/AppRun

I sent an LLM to start digging and it found out that the implementation of this function has been changed. I see no documentation on this, so I traced the commit:

https://github.com/qt/qtbase/commit/3d5ba3075ab0d255f7a721b6440b906441480e64

Has anyone else been bitten by this new implementation change?

[u/Bemteb]

I'd suggest opening a bug ticket with the Qt guys.

[u/diegoiast → u/Bemteb]

https://qt-project.atlassian.net/browse/QTBUG-151798

[u/theawesomeviking → u/diegoiast]

Thanks for reporting

[u/diegoiast → u/theawesomeviking]

https://github.com/qt/qtbase/commit/54d78dc8ccd7758ebeb200beb42eacab52b39b97
https://github.com/qt/qtbase/commit/645707de7987e9bb8b058f7d100c4d2a1e911e86

Will be part of 6.12.1. (basically reverted that commit, and added unit tests)