Using the msys c++ toolchain in windows

[samuel...@gmail.com]

I am trying to use the msys/mingw c++ toolchain in windows 10. When I invoked build on the sample project with the cpu, compiler and glibc args, I ran into the following problem.

$ bazel build //examples/cpp:hello-world --cpu=x64_windows_msys --compiler=windows_msys64 --glibc=local
ERROR: No toolchain found for --cpu='x64_windows' --compiler='windows_msys64' --glibc='local'. Valid toolchains are: [
--cpu='armeabi-v7a' --compiler='compiler' --glibc='armeabi-v7a',
--cpu='ios_x86_64' --compiler='compiler' --glibc='ios',
--cpu='x64_windows_msys' --compiler='windows_msys64' --glibc='local',
--cpu='x64_windows' --compiler='cl' --glibc='msvcrt140',
].

Is there a reason why the cpu arg gets automatically changed from x64_windows_msys to x64_windows? Fwiw, here is the version of bazel I am using

$ bazel version
.................
Build label: 0.7.0
Build target: bazel-out/msvc_x64-opt/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
Build time: Wed Oct 18 14:25:56 2017 (1508336756)
Build timestamp: 1508336756
Build timestamp as int: 1508336756

Thanks for your help.

[Yun Peng]

Hi,

This looks like a bug in Bazel. The cpu value should stay the same. Can you please file a bug at https://github.com/bazelbuild/bazel/issues?

In the meantime, can you try only passing --cpu=x64_windows_msys as a build option?

Best,

Yun

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