Use external repository for protobuf dependency. (#1289)

Currently, TensorFlow uses a Git submodule for its dependency on
protobuf. This was due to the hack used in protobuf for building Python
support with Bazel, which was required since Bazel's Python rules did
not support adding directories to `PYTHONPATH`. Now that the new
`imports` attribute has been added to the Python rules in Bazel 0.2 and
the hack for Python support in protobuf has been removed, this change
removes the `google/protobuf` Git submodule and adds an external
repository for including protobuf.

This patch also adds gmock.BUILD to the tensorflow repo.

Fixes #1069
Fixes #2021

1 files changed, 0 insertions, 11 deletions

diff --git a/configure b/configure
index 5d6397da57..98048ba91d 100755
--- a/configure
+++ b/configure
@@ -2,17 +2,6 @@
 
 DO_NOT_SUBMIT_WARNING="Unofficial setting. DO NOT SUBMIT!!!"
 
-## Verify that the submodule google/protobuf is available
-# TODO(cais): Remove this check once protobuf is no longer depended upon
-if [[ ! -f "google/protobuf/protobuf.bzl" ]]; then
-  echo "ERROR: It appears that the required submodule google/protobuf is not "\
-"available in this TensorFlow git clone."
-  echo "Please be sure to use the --recurse-submodules flag when performing "\
-"git clone of TensorFlow."
-
-  exit 1
-fi
-
 ## Set up python-related environment settings
 while true; do
   fromuser=""