If Qt is not found or broken, SCons reports that other dependencies are missing.

[RJ Skerry-Ryan]

This bites people from time to time and we should fix it. An easy thing to do is just to bail early when we load the Qt4 tool if we can't build a test binary with Qt linked.

[Sean M. Pappalardo (pegasus-renegadetech)]

Seems to me that Qt gets needlessly linked in to dependency checks that have nothing to do with it, like libsndfile. Removing these would go a long way toward resolving this.

[RJ Skerry-Ryan (rryan)]

Yea, if you look at config.log you can see that every additional dependency check appends to the build configuration. So if you add portaudio, and we check for opus next, -lportaudio is part of that compile line testing for opus.

The Qt support script we use (qt4/qt5.py) blindly appends to the configuration rather than testing for presence of qt libraries -- whereas using conf.CheckLib/CheckHeader (which we do for other libraries) does not append to the environment if the config check fails.

[Sean M. Pappalardo (pegasus-renegadetech)]

So is that the solution, or at least the start? Change the qt4/5 script to use CheckLib/CheckHeader?

[RJ Skerry-Ryan (rryan)]

Yea -- pretty much -- or move Qt to be last in the dependency checks.

On Wed, Jun 15, 2016 at 1:31 PM, Sean M. Pappalardo <
<email address hidden>> wrote:

> So is that the solution, or at least the start? Change the qt4/5 script
> to use CheckLib/CheckHeader?
>
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> You received this bug notification because you are a member of Mixxx
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> https://bugs.launchpad.net/bugs/1132995
>
> Title:
> If Qt is not found or broken, SCons reports that other dependencies
> are missing.
>
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[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/6928