Build on Windows with Appveyor

[wizardishungry]

DHE-Modules has a branch right now that builds using Appveyor. I'd ask that if we decide to use external scripts we use a standard layout. We could also stand to put Travis scripts in this layout.

[wizardishungry]

@dizzisound I'd love some help on this one; if we can ship the build artifact from this, I won't need to ask for builds 😄

[dizzisound]

@wizardishungry Glad to help, if I can. Tell me as well how I can help, I'm just inquiring about AppVeyor, new to it.

[dizzisound]

@wizardishungry At a first glance, I looked at DHE-Modules implementation, precisely the main script descriptor appveyor.yml and I would say that in our case there's a need to integrate the script fragment lauched at line 48:

• bash -l %APPVEYOR_BUILD_FOLDER%\ci\appveyor\install-development-tools.sh

Most likely rtl-sdr and libusb libraries don't come included in the AppVeyor MSYS2 setup, so the next step looks like this to me: "How to configure an extra fragment to pull, configure and compile the required libraries?"
Should I resume the cli pipeline that worked for me in doing that?
Tell me if I'm going in the right direction, CI setup is a quite new territory to me. We use Jenkins at work, but our fellow sysops did the thing :-)

[wizardishungry]

@dizzisound I think the best solution would be to move towards using git submodules on every platform. Both of those libraries are semi-complex to build, so I'm keeping my eyes open for a plugin that builds stuff along the lines of ext (and dep to some extent) in the main build.

[dizzisound]

@wizardishungry Nice point, I agree.