echo build options

Author: dskkato

test_resources/library/build-test-op

@@ -2,4 +2,6 @@
 
 TF_CFLAGS=( $(python -c 'import tensorflow as tf; print(" ".join(tf.sysconfig.get_compile_flags()))') )
 TF_LFLAGS=( $(python -c 'import tensorflow as tf; print(" ".join(tf.sysconfig.get_link_flags()))') )
-g++ -std=c++14 -shared test_op.cc -o test_op.so -fPIC ${TF_CFLAGS[@]} ${TF_LFLAGS[@]} -O2
+cmd="g++ -std=c++14 -shared test_op.cc -o test_op.so -fPIC ${TF_CFLAGS[@]} ${TF_LFLAGS[@]} -O2"
+echo $cmd
+$cmd