message: Try compilation against VS 2017
diff: platform: x64
  environment:
  - BOOST_ROOT: C:/Libraries/boost_1_60_0
  - BOOST_LIBRARYDIR_WIN32: C:/Libraries/boost_1_60_0/lib32-msvc-14.0
  - BOOST_LIBRARYDIR_WIN64: C:/Libraries/boost_1_60_0/lib64-msvc-14.0
  + BOOST_ROOT: C:/Libraries/boost_1_69_0
  + BOOST_LIBRARYDIR_WIN32: C:/Libraries/boost_1_69_0/lib32-msvc-15.0
  + BOOST_LIBRARYDIR_WIN64: C:/Libraries/boost_1_69_0/lib64-msvc-15.0
  clone_folder:
  C:\projects\visionaray
  @@ -35,15 +35,11 @@ build_script:
  - cd C:\projects\visionaray
  - mkdir build
  - cd build
  - - cmake -G "Visual Studio 14 2015 Win64"
  + - cmake -G "Visual Studio 15 2017 Win64"
  -DCMAKE_TOOLCHAIN_FILE=c:/tools/vcpkg/scripts/buildsystems/vcpkg.cmake
  -DBOOST_ROOT="%BOOST_ROOT%"
  -DBOOST_LIBRARYDIR="%BOOST_LIBRARYDIR_WIN64%"
  -DBoost_USE_STATIC_LIBS="ON"
  - -DGLEW_INCLUDE_DIR="C:/projects/nupengl.core.0.1.0.1/build/native/include"
  - -DGLEW_LIBRARY="C:/projects/nupengl.core.0.1.0.1/build/native/lib/x64/glew32.lib"
  - -DGLUT_INCLUDE_DIR="C:/projects/nupengl.core.0.1.0.1/build/native/include"
  - -DGLUT_glut_LIBRARY="C:/projects/nupengl.core.0.1.0.1/build/native/lib/x64/freeglut.lib"
  -DVSNRAY_ENABLE_EXAMPLES=ON
  -DVSNRAY_ENABLE_COMPILE_FAILURE_TESTS=ON
  -DVSNRAY_ENABLE_UNITTESTS=ON
  