Before this patch we ignored every non Qt dependency we encountered while scannig the binaries. That led to missing Qt dependencies for more complex setups. With this patch we also take "local non Qt dependencies" into consideration. One example would be: - A developer has a project that consists of an executable and a dll, where both are built/copied into the same folder before deployment - The dll has different/additional Qt dependencies The old approach just ignored these additional Qt dependencies. The new approach checks for these local dependencies and finds the dll in the same folder as the executable. In this case windeployqt will now also scan this dll (and other local dlls) for Qt dependencies and deploy these as well as their plugins. [ChangeLog][Tools][Windeployqt] windeployqt now takes local non Qt dependencies into consideration during deployment. Fixes: QTBUG-135079 Pick-to: 6.8 6.9 Change-Id: Ia916dea78c6a5707ccecb61d996a0b7490215798 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>