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Github Actions: Add ClangCL on Windows

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MS Visual Studio 2019 has builtin support for other compiler toolsets [1].

This commit adds support for compiling using LLVM/Clang 10 using Visual
Studio.

ClangCL pretends to be MSVC so the usual MSVC flags apply, see also [2].
For detecting if ClangCL is used, newer cmake verisons (>= 3.15) have
builtin support using CMAKE_CXX_COMPILER_FRONTEND_VARIANT [3], for older
ones a workaround is available using CMAKE_CXX_SIMULATE_ID [4].

[1]: https://devblogs.microsoft.com/cppblog/clang-llvm-support-in-visual-studio/
[2]: https://clang.llvm.org/docs/UsersManual.html#clang-cl
[3]: https://stackoverflow.com/a/10055571
[4]: 4fe34b2d29
This commit is contained in:
Thomas Braun 2020-07-14 14:15:24 +02:00
parent 6d7f8b3793
commit 25a59b59f2
2 changed files with 31 additions and 0 deletions
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30
.github/workflows/windows_clang_cl.yml vendored Normal file
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@ -0,0 +1,30 @@
name: Windows
on: [push, pull_request]
jobs:
clang-cl-10-x64:
runs-on: windows-latest
steps:
- uses: actions/checkout@v1
- name: cmake
run: cmake -S . -B build -G "Visual Studio 16 2019" -A x64 -T ClangCL -DJSON_BuildTests=On
- name: build
run: cmake --build build --config Debug --parallel 10
- name: test
run: cd build ; ctest -j 10 -C Debug --exclude-regex "test-unicode" --output-on-failure
clang-cl-10-x86:
runs-on: windows-latest
steps:
- uses: actions/checkout@v1
- name: cmake
run: cmake -S . -B build -G "Visual Studio 16 2019" -A Win32 -T ClangCL -DJSON_BuildTests=On
- name: build
run: cmake --build build --config Debug --parallel 10
- name: test
run: cd build ; ctest -j 10 -C Debug --exclude-regex "test-unicode" --output-on-failure

1
README.md
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@ -1254,6 +1254,7 @@ The following compilers are currently used in continuous integration at [Travis]
| MSVC 19.16.27035.0 (15.9.21+g9802d43bc3 for .NET Framework) | Windows-10.0.14393 | AppVeyor |
| MSVC 19.25.28614.0 (Build Engine version 16.5.0+d4cbfca49 for .NET Framework) | Windows-10.0.17763 | AppVeyor |
| MSVC 19.25.28614.0 (Build Engine version 16.5.0+d4cbfca49 for .NET Framework) | Windows-10.0.17763 | GitHub Actions |
| MSVC 19.25.28614.0 (Build Engine version 16.5.0+d4cbfca49 for .NET Framework) with ClangCL 10.0.0 | Windows-10.0.17763 | GitHub Actions |
## License