message: appveyor: add ninja,llvm build
diff: @@ -16,6 +16,13 @@ environment:
  PATH: $(PYTHON)\Scripts;$(PATH)
  PLATFORM: x64
  APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
  + - GENERATOR: Ninja
  + BUILD_TYPE: Release
  + PYTHON: "C:\\Python39-x64"
  + # add to path otherwise Cython is not found
  + PATH: $(PYTHON)\Scripts;$(PATH)
  + PLATFORM: x64
  + APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
  install:
  - 'systeminfo'
  