一、TensorFlow依赖项：
1.bazel-0.15.2（bazel-0.15.2-installer-linux-x86_64.sh）
下载：https://github.com/bazelbuild/bazel/releases?after=0.19.1
安装：
$ sudo ./bazel-0.15.2-installer-linux-x86_64.sh
2.protobuf-3.6.1（protobuf-all-3.6.1.tar.gz）：
安装：
二、TensorFlow编译（版本：1.12）
我下载的是1.12版本：https://github.com/tosonw/tensorflow/archive/v1.12.0.tar.gz
解压后命令行进入目录：
$ mkdir build
$ cd build
$ ../configure
Extracting Bazel installation...
WARNING: --batch mode is deprecated. Please instead explicitly shut down your Bazel server using the command "bazel shutdown".
You have bazel 0.15.2 installed.
Please specify the location of python. [Default is /home/toson/anaconda3/bin/python]:
Found possible Python library paths:
/home/toson/anaconda3/lib/python3.6/site-packages
/opt/intel/openvino_2019.1.144/python/python3.6
/opt/intel/openvino_2019.1.144/deployment_tools/model_optimizer
/home/toson/compile_libs/caffes/caffe_origin/python
Please input the desired Python library path to use. Default is [/home/toson/anaconda3/lib/python3.6/site-packages]
Do you wish to build TensorFlow with Apache Ignite support? [Y/n]: n
No Apache Ignite support will be enabled for TensorFlow.
Do you wish to build TensorFlow with XLA JIT support? [Y/n]: n
No XLA JIT support will be enabled for TensorFlow.
Do you wish to build TensorFlow with OpenCL SYCL support? [y/N]: n
No OpenCL SYCL support will be enabled for TensorFlow.
Do you wish to build TensorFlow with ROCm support? [y/N]: n
No ROCm support will be enabled for TensorFlow.
Do you wish to build TensorFlow with CUDA support? [y/N]: y
CUDA support will be enabled for TensorFlow.
Please specify the CUDA SDK version you want to use. [Leave empty to default to CUDA 9.0]: 10.1
Please specify the location where CUDA 10.1 toolkit is installed. Refer to README.md for more details. [Default is /usr/local/cuda]:
Please specify the cuDNN version you want to use. [Leave empty to default to cuDNN 7]:
Please specify the location where cuDNN 7 library is installed. Refer to README.md for more details. [Default is /usr/local/cuda]:
Do you wish to build TensorFlow with TensorRT support? [y/N]: n
No TensorRT support will be enabled for TensorFlow.
Please specify the NCCL version you want to use. If NCCL 2.2 is not installed, then you can use version 1.3 that can be fetched automatically but it may have worse performance with multiple GPUs. [Default is 2.2]: 1.3
Please specify a list of comma-separated Cuda compute capabilities you want to build with.
You can find the compute capability of your device at: https://developer.nvidia.com/cuda-gpus.
Please note that each additional compute capability significantly increases your build time and binary size. [Default is: 6.1]:
Do you want to use clang as CUDA compiler? [y/N]: n
nvcc will be used as CUDA compiler.
Please specify which gcc should be used by nvcc as the host compiler. [Default is /usr/bin/gcc]:
Do you wish to build TensorFlow with MPI support? [y/N]: n
No MPI support will be enabled for TensorFlow.
Please specify optimization flags to use during compilation when bazel option "--config=opt" is specified [Default is -march=native]:
Would you like to interactively configure ./WORKSPACE for Android builds? [y/N]:
Not configuring the WORKSPACE for Android builds.
Preconfigured Bazel build configs. You can use any of the below by adding "--config=<>" to your build command. See tools/bazel.rc for more details.
--config=mkl # Build with MKL support.
--config=monolithic # Config for mostly static monolithic build.
--config=gdr # Build with GDR support.
--config=verbs # Build with libverbs support.
--config=ngraph # Build with Intel nGraph support.
Configuration finished
编译：
$ bazel build --config=opt --config=cuda --cxxopt="-D_GLIBCXX_USE_CXX11_ABI=0" //tensorflow:libtensorflow_cc.so
#等待有点久，最后提示以下内容就算成功了：
INFO: Elapsed time: 1365.375s, Critical Path: 185.64s
INFO: 4956 processes: 4956 local.
INFO: Build completed successfully, 4985 total actions
如果有问题：
#找不到库文件
Cuda Configuration Error: Cannot find cuda library libcublas.so.10.1
#我查询后发现确实找不到，但是只是名字不对应
$ locate libcublas.so.10.1
/usr/lib/x86_64-linux-gnu/libcublas.so.10.1.0.105
/usr/local/cuda-10.1/targets/x86_64-linux/lib/libcublas.so.10.1.0.105
#我就手动拷贝了一下
sudo cp /usr/local/cuda-10.1/targets/x86_64-linux/lib/libcublas.so.10.1.0.105 /usr/local/cuda-10.1/targets/x86_64-linux/lib/libcublas.so.10.1
#再次编译，仍有问题提示：找不到库文件。通过上述方式进行拷贝可解决。
Cuda Configuration Error: Cannot find cuda library libcusolver.so.10.1
Cuda Configuration Error: Cannot find cuda library libcurand.so.10.1
Cuda Configuration Error: Cannot find cuda library libcufft.so.10.1
注：RTX2060 的 Compute Capability 为 7.5（但是tensorflow_1.12不支持该架构:compute_75，tensorflow_2.0也许支持，但需要bazel_1.22，未继续研究）
编译成功后，在 /bazel-bin/tensorflow 目录下会出现 libtensorflow_cc.so 文件
C版本： bazel build :libtensorflow.so
C++版本： bazel build :libtensorflow_cc.so
需要的头文件，要在源码里拷贝出来使用：
bazel-genfiles/...，eigen/...，include/...，tf/...
