title: Tensorflow 1.5 build failing - missing path?
body: <p>I have been following a tutorial to install and build Tensorflow on macOS. When I attempt to build it, I use the following command:</p>
  
  <pre><code>bazel build --config=cuda --config=opt --copt=-msse4.2 --copt=-mpopcnt --copt=-maes --copt=-mcx16 --verbose_failures --action_env PATH --action_env LD_LIBRARY_PATH --action_env DYLD_LIBRARY_PATH //tensorflow/tools/pip_package:build_pip_package
  </code></pre>
  
  <p>It fails almost immediately:</p>
  
  <pre><code>ERROR: /Users/psmith/tensorflow/third_party/py/numpy/BUILD:11:1: no such package '@local_config_python//': Traceback (most recent call last):
      File "/Users/psmith/tensorflow/third_party/py/python_configure.bzl", line 291
          _create_local_python_repository(repository_ctx)
      File "/Users/psmith/tensorflow/third_party/py/python_configure.bzl", line 255, in _create_local_python_repository
          _get_numpy_include(repository_ctx, python_bin)
      File "/Users/psmith/tensorflow/third_party/py/python_configure.bzl", line 239, in _get_numpy_include
          _execute(repository_ctx, [python_bin, "-c",..."], &lt;2 more arguments&gt;)
      File "/Users/psmith/tensorflow/third_party/py/python_configure.bzl", line 54, in _execute
          _fail("\n".join([error_msg.strip() if ... ""]))
      File "/Users/psmith/tensorflow/third_party/py/python_configure.bzl", line 27, in _fail
          fail(("%sPython Configuration Error:%...)))
  Python Configuration Error: Problem getting numpy include path.
  Traceback (most recent call last):
    File "&lt;string&gt;", line 1, in &lt;module&gt;
  ModuleNotFoundError: No module named 'numpy'
  Is numpy installed?
   and referenced by '//third_party/py/numpy:headers'
  ERROR: Analysis of target '//tensorflow/tools/pip_package:build_pip_package' failed; build aborted: Loading failed
  INFO: Elapsed time: 0.287s
  FAILED: Build did NOT complete successfully (2 packages loaded)
      currently loading: tensorflow/core ... (2 packages)
  </code></pre>
  
  <p>I have tested and verified that numpy is actually installed. I have also forced an upgrade and a re-install. I can run Python3 > import numpy without error.</p>