OS X 10.11.4 Dynamic Library Dependency Problem

[SGaist]

The output of macdeployqt run the first time would be more helpful. Delete the app bundle, recreate it and then run macdeployqt on it with the verbose mode on so you'll have more details about what is going on.

[Sasha Kolesnikov]

@SGaist picture

[SGaist]

Why are you calling it with sudo ?

You forgot to make it verbose

[Sasha Kolesnikov]

@SGaist I try without sudo. What means verbose?

[SGaist]

Verbose means "output more log information". Use the -verbose=3 option and see if there's anything in the output talking about QtMultimedia

[Sasha Kolesnikov]

@SGaist more information

[Sasha Kolesnikov]

@SGaist I I think this is should help

[SGaist]

Is it me or the QtMultimediaWidgets module wasn't listed ?

[Sasha Kolesnikov]

@SGaist My bad.Pic

[SGaist]

At first sight, it looks correct. Can you run otool -l your_app.app/Contents/MacOS/exec_name and look what you get for the rpath entries ?

[Sasha Kolesnikov]

@Sasha-Kolesnikov Build after deploy it is a bad idea. This is solution

[SGaist]

Do you mean that you re-built your application after calling madecployqt ?

[Sasha Kolesnikov]

@SGaist Yes

[SGaist]

Indeed, that's not a good idea. Your application executable will be replaced nullifying the job done by macdeployqt. You'll have to call it again before re-releasing again your application.

[jonawebb]

I've had similar problems with dynamic libraries in 10.11.4. The problems go away if I turn off System Integrity Protection.
These don't show up for every executable. It depends on where the executable is installed. My executable is a Safari extension, which has to be installed in /Library/Internet Plug-ins. Apparently, that (or running in Safari) makes the executable "protected."
I ran into two kinds of problems:

1. The executable used @rpath to load components of the Framework libraries (inserted into the package by macdeployqt). This doesn't appear to work with System Integrity Protection. @loader_path does work, as do absolute paths. (You can change the paths using install_name_tool).
2. Qt loads plugins using dlopen. This doesn't appear to work at all with System Integrity Protection. As a result, the code fails in QtGuiApplication::createPlatformIntegration, which is where it tries to load the platform plugin.

I haven't found a workaround for the second problem. As a result it appears that Qt won't work for "protected" executables under OS X El Capitan.