Macdeployqt is not working

I've installed the latest version of Qt (5.1) and when I try to deploy my app on Mac using the macdeployqt tool, the app is still not working on other macs. It's completely working on my Mac and it doesn't not indicate any errors. After researches I found this and I think it's my problem : Qt 5.1 and Mac: Bug making macdeployqt not working properly and https://bugreports.qt-project.org/browse/QTBUG-14699 But the explanation is too technical for me (+ english not my native language), I'm a complete beginner, can you explain what do I have to do to simply make my app work on Mac ? Step by step ? It is perfectly functional on Windows (with the standard dlls).

Thank you so much, I think it will help a lot of beginners that are going through the same issue.