build:cross_compile_macos_x86 --action_env  MACOSX_DEPLOYMENT_TARGET=10.15

# Set the target CPU to Darwin x86
build:cross_compile_macos_x86 --platforms=//tensorflow/tools/toolchains/cross_compile/config:darwin_x86_64
build:cross_compile_macos_x86 --cpu=darwin
build:cross_compile_macos_x86 --crosstool_top=//tensorflow/tools/toolchains/cross_compile/cc:cross_compile_toolchain_suite

filename | sha512 hash
-------- | -----------
[kubernetes-client-darwin-386.tar.gz](https://dl.k8s.io/v1.19.0-rc.2/kubernetes-client-darwin-386.tar.gz) | 03332cd70ce6a9c8e533d93d694da32b549bef486cf73c649bcb1c85fc314b0ac0f95e035de7b54c81112c1ac39029abeb8f246d359384bde2119ea5ea3ebe66

pkg os, type PathError struct, Err error
pkg os, type PathError struct, Op string
pkg os, type PathError struct, Path string
pkg syscall (darwin-amd64), const ImplementsGetwd = false
pkg syscall (darwin-amd64), func Fchflags(string, int) error
pkg syscall (darwin-amd64-cgo), const ImplementsGetwd = false
pkg syscall (darwin-amd64-cgo), func Fchflags(string, int) error
pkg syscall (freebsd-386), const AF_MAX = 38

    echo 'behavior, create a new shell.'
    cat "$FROM_ENV"
    source "$FROM_ENV"
    rm "$FROM_ENV"
  fi
fi

# Mac builds have some specific setup needs. See setup_macos.sh for details
if [[ "${OSTYPE}" =~ darwin* ]]; then
  source ./ci/official/utilities/setup_macos.sh
fi

# Create and expand to the full path of TFCI_OUTPUT_DIR
export TFCI_OUTPUT_DIR=$(realpath "$TFCI_OUTPUT_DIR")
mkdir -p "$TFCI_OUTPUT_DIR"

filename | sha256 hash
-------- | -----------
[kubernetes-client-darwin-386.tar.gz](https://storage.googleapis.com/kubernetes-release/release/v1.2.7/kubernetes-client-darwin-386.tar.gz) | `8418767e45c62c2ef5f9b4479ed02af64e190ce07dcbafa1920e93e71f419c55`
[kubernetes-client-darwin-amd64.tar.gz](https://storage.googleapis.com/kubernetes-release/release/v1.2.7/kubernetes-client-darwin-amd64.tar.gz) | `41d742c2c55e7686311978eaaddee3844b990a0fe49fa8597158bcb0ee4c05c9`

)

config_setting(
    name = "no_tensorflow_py_deps",
    define_values = {"no_tensorflow_py_deps": "true"},
    visibility = ["//visibility:public"],
)

# Sometimes Bazel reports darwin_x86_64 as "darwin" and sometimes as
# "darwin_x86_64". The former shows up when building on a Mac x86_64 host for a Mac x86_64 target.
# The latter shows up when cross-compiling for Mac x86_64 from a Mac ARM machine and in internal
# Google builds.

### Client Binaries

filename | sha512 hash
-------- | -----------
[kubernetes-client-darwin-amd64.tar.gz](https://dl.k8s.io/v1.20.15/kubernetes-client-darwin-amd64.tar.gz) | d7a844366586ca9723515a738ed6a3680e9511e79887511ab9e86bd7963a66e82e5a85997bc269579520f8f9953b8813061f64fec27d165b6e2bd98aa21e13c2

  mkdir -p "${TARGET_OUT_LINUX}"
  cp "${ZTUNNEL_BIN_PATH}" "${TARGET_OUT_LINUX}/ztunnel"
  popd
}

# ztunnel binary vars (TODO handle debug builds, arm, darwin etc.)
ISTIO_ZTUNNEL_BASE_URL="${ISTIO_ZTUNNEL_BASE_URL:-https://storage.googleapis.com/istio-build/ztunnel}"

# If we are not using the default, assume its private and we need to authenticate

```

*`resolveDependencies` task resolves dependencies for all platforms including dependencies downloaded by plugins.*

Keep in mind:

- If you’re adding a dependency with OS mentioned in an artifact name (`darwin`, `mac`, `osx`, `linux`, `windows`), remember to add them to 
  `implicitDependencies` configuration or update `resolveDependencies` task if needed. `resolveDependencies` should resolve all dependencies

<h2 id="ports">Ports</h2>

<h3 id="darwin">Darwin</h3>
<p><!-- CL 461697 -->
  On macOS on 64-bit x86 architecture (the <code>darwin/amd64</code> port),
  the Go toolchain now generates position-independent executables (PIE) by default.
  Non-PIE binaries can be generated by specifying the <code>-buildmode=exe</code>
  build flag.
  On 64-bit ARM-based macOS (the <code>darwin/arm64</code> port),