Cannot build libtensorflow.so with bazel 0.19

[galeone]

System information

• OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Archlinux
• TensorFlow installed from (source or binary): source
• TensorFlow version: 1.12
• Python version: 3.7
• Bazel version (if compiling from source): Build label: 0.19.0- (@non-git)
• GCC/Compiler version (if compiling from source): gcc 8.2.1
• CUDA/cuDNN version: cuda 10, cudnn 7
• GPU model and memory: nvidia 1080 ti

Describe the problem

When I try to compile tensorflow from sources running:

go get -d github.com/tensorflow/tensorflow/tensorflow/go
cd ${GOPATH}/src/github.com/tensorflow/tensorflow
git checkout origin/r1.12
./configure
bazel build -c opt //tensorflow:libtensorflow.so

I got this warning from bazel:

WARNING: The following rc files are no longer being read, please transfer their contents or import their path into one of the standard rc files:
/data/pgaleone/go/src/github.com/tensorflow/tensorflow/tools/bazel.rc

and this error next:

Starting local Bazel server and connecting to it...
INFO: Options provided by the client:
  Inherited 'common' options: --isatty=1 --terminal_columns=271
INFO: Reading rc options for 'build' from /data/pgaleone/go/src/github.com/tensorflow/tensorflow/.tf_configure.bazelrc:
  'build' options: --action_env PYTHON_BIN_PATH=/usr/bin/python --action_env PYTHON_LIB_PATH=/usr/lib/python3.7/site-packages --python_path=/usr/bin/python --define with_ignite_support=true --define with_xla_support=true --action_env TF_NEED_OPENCL_SYCL=0 --action_env TF_NEED_ROCM=0 --action_env TF_NEED_CUDA=1 --action_env CUDA_TOOLKIT_PATH=/opt/cuda --action_env TF_CUDA_VERSION=10.0 --action_env CUDNN_INSTALL_PATH=/opt/cuda --action_env TF_CUDNN_VERSION=7 --action_env NCCL_INSTALL_PATH=/usr/lib --action_env NCCL_HDR_PATH=/usr/lib/../include --action_env TF_NCCL_VERSION=2 --action_env TF_CUDA_COMPUTE_CAPABILITIES=6.1 --action_env LD_LIBRARY_PATH=/opt/cuda/lib64:/opt/cuda/extras/CUPTI/lib64:/home/pgaleone/sources/ml/tensorflow/bazel-bin/tensorflow/ --action_env TF_CUDA_CLANG=0 --action_env GCC_HOST_COMPILER_PATH=/usr/bin/gcc-7 --config=cuda
ERROR: Config value cuda is not defined in any .rc file

[alanpurple]

ERROR: Config value cuda is not defined in any .rc file

👍

[neofob]

@galeone : Add the below line to your .bazelrc file in your checkout tensorflow source

import /data/pgaleone/go/src/github.com/tensorflow/tensorflow/tools/bazel.rc

or whatever that path of your tensorflow source to tools/bazel.rc

[galeone]

Thank you @neofob - now it works!
However, shouldn't this line being added automatically to the .bazelrc file? Probably this is a bug (although your fix works well)