Build directory not on include path after FindTensorflow.cmake

[tykurtz]

Environment

info	output
os	Ubuntu 18.04
c++ version	7.4.0
TF version	1.14.1
TF is working	works

Issue

Build directory not on include path after FindTensorflow.cmake

Context:
Just trying to include image_ops.h

~/coding/catkin_ws$ ls $TENSORFLOW_BUILD_DIR/includes/tensorflow/cc/ops/
array_ops.h                        control_flow_ops.h           image_ops.h            list_ops.h              manip_ops.h           no_op.h                 remote_fused_graph_ops.h           string_ops.h
array_ops_internal.h               control_flow_ops_internal.h  image_ops_internal.h   list_ops_internal.h     manip_ops_internal.h  no_op_internal.h        remote_fused_graph_ops_internal.h  string_ops_internal.h
audio_ops.h                        data_flow_ops.h              io_ops.h               logging_ops.h           math_ops.h            parsing_ops.h           sparse_ops.h                       training_ops.h
audio_ops_internal.h               data_flow_ops_internal.h     io_ops_internal.h      logging_ops_internal.h  math_ops_internal.h   parsing_ops_internal.h  sparse_ops_internal.h              training_ops_internal.h
candidate_sampling_ops.h           functional_ops.h             linalg_ops.h           lookup_ops.h            nn_ops.h              random_ops.h            state_ops.h                        user_ops.h
candidate_sampling_ops_internal.h  functional_ops_internal.h    linalg_ops_internal.h  lookup_ops_internal.h   nn_ops_internal.h     random_ops_internal.h   state_ops_internal.h               user_ops_internal.h

Reproduce:
I followed the directions to copy the output of bazel-genfiles into ${TENSORFLOW_BUILD_DIR} as described here https://github.com/PatWie/tensorflow-cmake#inference

Output

The example inference file builds fine for me, but when trying to expand it by including image_ops I get the following error

fatal error: tensorflow/cc/ops/image_ops.h: No such file or directory
 #include "tensorflow/cc/ops/image_ops.h"
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.

Expectation
Big beautiful green letters saying compile completed with 0 errors

Investigation

~/coding/catkin_ws$ python -c "import tensorflow as tf; print(tf.__version__); print(tf.__cxx11_abi_flag__); print(tf.sysconfig.get_include()); print(tf.sysconfig.get_lib() + '/libtensorflow_framework.so')"
1.14.1
1
/home/tyler/.local/lib/python2.7/site-packages/tensorflow/include
/home/tyler/.local/lib/python2.7/site-packages/tensorflow/libtensorflow_framework.so

Fixed it by adding

target_include_directories(TensorFlow_DEP SYSTEM INTERFACE ${TensorFlow_BUILD_DIR}/includes/

in FindTensorFlow.cmake.

[PatWie]

In 1.14 TF has changed many header files. There was an attempt of supporting this version (https://github.com/PatWie/tensorflow-cmake/tree/1.14.0). But I currently see no pressure to support this version as well.