message: AppVeyor: Also build with clang from MSYS2
diff: @@ -7,20 +7,34 @@ clone_folder: C:\projects\cquery
  install:
  - git submodule update --init
  +environment:
  + CLICOLOR_FORCE: 1
  + matrix:
  + - MSYSTEM: MINGW64
  + - MSYSTEM: MSVC
  +
  build_script:
  - - cd C:\projects\cquery
  - - python waf configure --msvc_version="msvc 15.0"
  - - python waf build
  - ps: |
  + If ($Env:MSYSTEM -Eq "MSVC") {
  $dir = "cquery-${env:appveyor_build_version}-win64"
  cd C:\projects\cquery
  + python waf configure --msvc_version="msvc 15.0"
  + python waf build
  mkdir "${dir}\build\release\bin" -ea 0
  mkdir "${dir}\build\release\lib\LLVM-5.0.1-win64\lib\clang\5.0.1\"
  copy "build\release\bin\*" "${dir}\build\release\bin"
  copy -recurse "build\LLVM-5.0.1-win64\lib\clang\5.0.1\include" "${dir}\build\release\lib\LLVM-5.0.1-win64\lib\clang\5.0.1\"
  7z a -tzip "C:\projects\cquery\${dir}.zip" "${dir}"
  + } Else {
  + C:\msys64\usr\bin\bash -lc @'
  + pacman -S --needed --noconfirm mingw-w64-x86_64-clang python
  + cd /c/projects/cquery
  + CXXFLAGS=-Wall /usr/bin/python waf configure build --use-system-clang 2>&1
  + '@
  + }
  + - set PATH=%PATH%;C:\msys64\%MSYSTEM%\bin
  - build\release\bin\cquery --ci --log-all-to-stderr --test-unit
  - - build\release\bin\cquery --ci --log-all-to-stderr --test-index
  + - IF "%MSYSTEM%"=="MSVC" build\release\bin\cquery --ci --log-all-to-stderr --test-index
  artifacts:
  - path: 'cquery-*.zip'
  