message: construction_worker: experimenting with AppVeyor and MinGW
diff: version: '{build}'
  -platform:
  - - x86
  - - x64
  -
  -os:
  - - Visual Studio 2015
  - - Visual Studio 2017
  -
  environment:
  matrix:
  - - additional_flags: ""
  - - additional_flags: "/permissive- /std:c++latest /utf-8"
  -
  -matrix:
  - exclude:
  - - additional_flags: "/permissive- /std:c++latest /utf-8"
  - os: Visual Studio 2015
  -
  -init: []
  -
  -install: []
  + - os: Visual Studio 2015
  + platform: x86
  + FLAGS: ""
  + GENERATOR: Visual Studio 14 2015
  +
  + - os: Visual Studio 2017
  + platform: x86
  + FLAGS: ""
  + GENERATOR: Visual Studio 15 2017
  +
  + - os: Visual Studio 2017
  + platform: x86
  + FLAGS: "/permissive- /std:c++latest /utf-8"
  + GENERATOR: Visual Studio 15 2017
  +
  + - os: Visual Studio 2015
  + platform: x64
  + FLAGS: ""
  + GENERATOR: Visual Studio 14 2015
  +
  + - os: Visual Studio 2017
  + platform: x64
  + FLAGS: ""
  + GENERATOR: Visual Studio 15 2017
  +
  + - os: Visual Studio 2017
  + platform: x64
  + FLAGS: "/permissive- /std:c++latest /utf-8"
  + GENERATOR: Visual Studio 15 2017
  +
  + - COMPILER: mingw
  + platform: x86
  + FLAGS: ""
  + GENERATOR: MinGW Makefiles
  +
  + - COMPILER: mingw
  + platform: x64
  + FLAGS: ""
  + GENERATOR: MinGW Makefiles
  +
  +init:
  + - cmake --version
  + - msbuild /version
  +
  +install:
  + - if "%COMPILER%"=="mingw" set PATH=C:\MinGW\bin;%PATH%
  +
  +before_build:
  + - cmake . -G%GENERATOR% -DCMAKE_CXX_FLAGS="%FLAGS%" -DCMAKE_BUILD_TYPE=Release
  build_script:
  - - IF "%APPVEYOR_BUILD_WORKER_IMAGE%" == "Visual Studio 2015" ( SET GEN="Visual Studio 14 2015") ELSE (SET GEN="Visual Studio 15 2017")
  - - cmake . -G%GEN% -DCMAKE_CXX_FLAGS="%additional_flags%"
  - - cmake --build . --config Release
  + - cmake --build .
  test_script:
  - ctest -C Release -V -j
  