Clean up the list of dependencies

[lboklin]

Or come up with a way to automate fetching the right ones via ldd (or whatever).

Do this from within a docker container.

Right now the recipe is a mess that really only works on my system.

[probonopd]

Let's begin by clarifying some questions:

• Which target systems are you targeting, in other words, which are the oldest distributions that you still want to support?
• Do you already build debs or rpms?
• Do you already use or could envision to use a CI system like Travis CI?
• If your application is Qt-based, did you check out linuxdeployqt?

[lboklin]

• I'm targeting desktop distros that are not ancient but might still run on machines that would be used to run this application. I am using Centos 6 as a basis in my docker image in the docker branch. Probably overkill, but I'm curious about making it work anyway because why not. Is it a mistake?
• I do not. The reason I am attempting this is because there are no binaries offered at this time.
• I have not used it, but I would consider looking into it.
• I did, but I kept having trouble with errors saying QtQuick is not installed (which I was hoping to solve by using it). I eventually gave up after lots of fiddling. It also seems to not want to use the same directory structure that the guidelines recommend.

[probonopd]

I'm targeting desktop distros that are not ancient but might still run on machines that would be used to run this application.

That is very reasonable, although different projects may have different notions of "not ancient".

I am using Centos 6 as a basis in my docker image in the docker branch. Probably overkill, but I'm curious about making it work anyway because why not. Is it a mistake?

It is a good choice, although a bit more cumbersome than say, go with Ubuntu precise or trusty as provided by Travis CI, in which case you would not have to manage your own Docker container with CentOS 6.

The reason I am attempting this is because there are no binaries offered at this time.

Makes sense. For projects for which there are already existing debs, it is easy to convert these to an AppImage.

I did, but I kept having trouble with errors saying QtQuick is not installed

Yes, linuxdeployqt still is relatively new and has some known bugs, and I am hoping that some experienced Qt users/developers can help to iron the remaining ones out ;-)

Might be related to https://github.com/probonopd/linuxdeployqt/issues/25 Please run linuxdeployqt twice and see if this fixes it.

[lboklin]

I've tried most methods, including running it twice. It seems though that I always end up with "QtQuick is not installed" in the end.

Someone has now shared a .deb they've been working on, so I am going to try convert that next before I do anything else and hope that is an easy way out. Part of me wants to do this the hard way just to figure it out, though :)