[MacPorts] #62685: py39-tensorflow +native : dependencies are broken

[MacPorts]

#62685: py39-tensorflow +native : dependencies are broken
------------------------+-----------------------------
 Reporter:  mouse07410  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  py39-tensorflow
------------------------+-----------------------------
 Big Sur 11.2.3, Xcode-12.4.
 Attempt to install {{{py39-tensorflow +native}}}, installation fails
 because of conflicting dependencies: it seems to require **both**
 {{{bazel-3.1}}} **and** {{{bazel-3.7}}}.

 {{{
 $ port installed | grep bazel
   bazel-3.1 @3.1.0_0 (active)
 $ sudo port install py39-tensorflow +native
 Warning: The macOS 11.2 SDK does not appear to be installed. Ports may not
 build correctly.
 Warning: You can install it as part of the Xcode Command Line Tools
 package by running `xcode-select --install'.
 --->  Computing dependencies for py39-tensorflow
 Error: Can't install bazel-3.7 because conflicting ports are active:
 bazel-3.1
 Error: Follow https://guide.macports.org/#project.tickets to report a bug.
 Error: Processing of port py39-tensorflow failed
 $ port info py39-tensorflow
 py39-tensorflow @2.4.1_1 (python)
 Variants:             mkl, native

 Description:          TensorFlow helps the tensors flow
 Homepage:             https://www.tensorflow.org/

 Build Dependencies:   py39-future, py39-pip, py39-mock, cctools, bazel-3.1
 Library Dependencies: python39, py39-absl, py39-astor, py39-astunparse,
 py39-flatbuffers, py39-gast,
                       py39-google-pasta, py39-grpcio, py39-keras,
 py39-numpy, py39-opt_einsum, py39-protobuf3,
                       py39-six, py39-tensorboard,
 py39-tensorflow_estimator, py39-termcolor, py39-wheel,
                       py39-wrapt
 Runtime Dependencies: py39-tensorflow-addons
 Conflicts with:       py39-tensorflow1
 Platforms:            darwin
 License:              Apache-2
 Maintainers:          Email: emcrisostomo at macports.org, GitHub:
 emcrisostomo
                       Email: jonesc at macports.org, GitHub: cjones051073
                       Policy: openmaintainer
 }}}

 There is no log.

-- 
Ticket URL: <https://trac.macports.org/ticket/62685>
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