[nnkit/moco/tf] Make cmake work only when Tensorflow is found (#3405)

This commits makes cmake builds nnkit/moco/tf only when TF is found

Signed-off-by: Hyun Sik Yoon <hyunsik.yoon@samsung.com>

diff --git a/contrib/nnkit/libs/support/moco/CMakeLists.txt b/contrib/nnkit/libs/support/moco/CMakeLists.txt
index fdb6abe..2b3c19c 100644 (file)
--- a/contrib/nnkit/libs/support/moco/CMakeLists.txt
+++ b/contrib/nnkit/libs/support/moco/CMakeLists.txt
@@ -1,4 +1,10 @@
 # backend for moco TF
+nncc_find_package(TensorFlow QUIET)
+
+if(NOT TensorFlow_FOUND)
+  return()
+endif(NOT TensorFlow_FOUND)
+
 file(GLOB_RECURSE TF_SOURCES "tf/src/*.cpp")
 
 add_library(nnkit_support_moco_tf STATIC ${TF_SOURCES})