Can't build LIBSVM on Appveyor

[JonasIsensee]

Hi,

I'm not quite sure where to report this but my Appveyor CI jobs are failing because of some error that shows up when trying to build LIBSVM.

See e.g. https://ci.appveyor.com/project/JonasIsensee/jld2-jl/builds/35694287/job/1qy2o7xu763iws6d

Building LIBSVM ───→ `C:\Users\appveyor\.julia\packages\LIBSVM\5Z99T\deps\build.log`
┌ Error: Error building `LIBSVM`: 
│ Exception calling "DownloadFile" with "2" argument(s): "The remote server 
│ returned an error: (403) Forbidden."
│ At line:1 char:96
│ + ... pe]::Tls12; (New-Object System.Net.Webclient).DownloadFile('http://we ...
│ +                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
│     + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
│     + FullyQualifiedErrorId : WebException
│  
│ [ Info: Downloading LIBSVM binary
│ ERROR: LoadError: failed process: Process(`'C:\windows\System32\WindowsPowerShell\v1.0\powershell.exe' -Version 3 -NoProfile -Command "[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12; (New-Object System.Net.Webclient).DownloadFile('http://web.ics.purdue.edu/~finej/libsvm32-3.22_1.dll', 'C:\Users\appveyor\.julia\packages\LIBSVM\5Z99T\deps\libsvm.dll')"`, ProcessExited(1)) [1]
│ Stacktrace:
│  [1] error(::String, ::Base.Process, ::String, ::Int64, ::String) at .\error.jl:42
│  [2] pipeline_error at .\process.jl:705 [inlined]
│  [3] download(::String, ::String) at .\download.jl:20
│  [4] top-level scope at C:\Users\appveyor\.julia\packages\LIBSVM\5Z99T\deps\build.jl:8
│  [5] include at .\boot.jl:317 [inlined]
│  [6] include_relative(::Module, ::String) at .\loading.jl:1044
│  [7] include(::Module, ::String) at .\sysimg.jl:29
│  [8] include(::String) at .\client.jl:392
│  [9] top-level scope at none:0
│ in expression starting at C:\Users\appveyor\.julia\packages\LIBSVM\5Z99T\deps\build.jl:2
└ @ Pkg.Operations C:\cygwin\home\Administrator\buildbot\worker\package_win32\build\usr\share\julia\stdlib\v1.0\Pkg\src\Operations.jl:1096

[JonasIsensee]

Ah, so apparently the binary compatible with julia v1.0 is no longer available

[iblislin]

yeah, this package requires Julia 1.3+.