Appveyor fails

[LO1ZB]

Appveyor tryes to build using "Visual Studio 14 2015"
https://ci.appveyor.com/project/madmaxoft/mcserver/build/1.0.1352#L44

cmake (Appveyor log):

-- Building for: Visual Studio 14 2015
-- The CXX compiler identification is MSVC 19.0.22816.0
-- The C compiler identification is MSVC 19.0.22816.0
-- Check for working CXX compiler using: Visual Studio 14 2015
-- Check for working CXX compiler using: Visual Studio 14 2015 -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working C compiler using: Visual Studio 14 2015
-- Check for working C compiler using: Visual Studio 14 2015 -- works

In my experiments last week, Cuberite did not compile using VS 14 2015

[NiLSPACE]

Perhaps we can try to fix Cuberite compiling on VS 2015 instead of making Appveyor use VS 2013.

[madmaxoft]

Everyone in the GitHub org should be able to make changes to the Appveyor project settings, if you login there with a GitHub account.

[LO1ZB]

@NiLSPACE I reinstall VS 14 on my vm right now and try again later.

[worktycho]

@NiLSPACE I think we need to keep appveyor compiling with VS2013. VS2013 is our main limiter in what c++ features we can use, as both gcc 4.8 and clang 3.4 support a super-set of its feature.

[worktycho]

@madmaxoft I've just tried that, and its not giving me access to the settings.

[LO1ZB]

@worktycho only @bearbin is part of the cuberite team atm
https://github.com/orgs/cuberite/people

[madmaxoft]

@NiLSPACE was an owner, too. I just added @worktycho and and @tigerw

I clicked through the Appveyor settings and couldn't find anything related to the VS version.

[bearbin]

I just copied how the MCServer organisation was, so anybody you added now weren't owners on the old one.

[LO1ZB]

@madmaxoft
http://www.appveyor.com/updates
"You can select build worker image in OS dropdown on Environment tab of project settings or if you use appveyor.yml"

os: Previous Windows Server 2012 R2

[madmaxoft]

The image had been set to Windows Server 2012 R2, I've now set it to Previous Windows Server 2012 R2. This is so confusing!

[LO1ZB]

switching to 'Previous Windows Server 2012 R2' did the trick.
https://ci.appveyor.com/project/madmaxoft/mcserver/build/1.0.1354