Fix issue related to empty bazel.rc file.

Change: 154840138

.gitignore

@@ -5,7 +5,6 @@ node_modules
 /.tf_configure.bazelrc
 /bazel-*
 /third_party/py/numpy/numpy_include
-/tools/bazel.rc
 /tools/python_bin_path.sh
 /tools/git/gen
 /util/python/python_include

configure

@@ -356,9 +356,8 @@ if [[ "$TF_NEED_VERBS" == "1" ]]; then
 fi
 
 # Append CC optimization flags to bazel.rc
-echo >> tools/bazel.rc
 for opt in $CC_OPT_FLAGS; do
-  echo "build:opt --cxxopt=$opt --copt=$opt" >> tools/bazel.rc
+  write_to_bazelrc 'build:opt --cxxopt=$opt --copt=$opt'
 done
 
 # Run the gen_git_source to create links where bazel can track dependencies for

tools/bazel.rc

@@ -0,0 +1,30 @@
+build:cuda --crosstool_top=@local_config_cuda//crosstool:toolchain
+build:cuda --define=using_cuda=true --define=using_cuda_nvcc=true
+
+build:cuda_clang --crosstool_top=@local_config_cuda//crosstool:toolchain
+build:cuda_clang --define=using_cuda=true --define=using_cuda_clang=true
+
+build:win-cuda --define=using_cuda=true --define=using_cuda_nvcc=true
+
+build:mkl --define=using_mkl=true
+
+build:sycl --crosstool_top=@local_config_sycl//crosstool:toolchain
+build:sycl --define=using_sycl=true
+
+build:sycl_asan --crosstool_top=@local_config_sycl//crosstool:toolchain
+build:sycl_asan --define=using_sycl=true --copt -fno-omit-frame-pointer --copt -fsanitize-coverage=3 --copt -DGPR_NO_DIRECT_SYSCALLS --linkopt -fPIC --linkopt -fsanitize=address
+
+build --define=use_fast_cpp_protos=true
+build --define=allow_oversize_protos=true
+
+build --spawn_strategy=standalone
+test --spawn_strategy=standalone
+run --spawn_strategy=standalone
+
+build --genrule_strategy=standalone
+test --genrule_strategy=standalone
+run --genrule_strategy=standalone
+
+build -c opt
+test -c opt
+run -c opt