Backend/API: cmake module to find Intel clDNN (#1155)

cmake/Modules/FindCLDNN.cmake

+# ******************************************************************************
+# Copyright 2017-2018 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ******************************************************************************
+
+# The following variables are optionally searched for defaults
+#  CLDNN_ROOT_DIR:     Base directory where all Intel clDNN components are found
+#
+# The following are set after configuration is done:
+#  CLDNN_FOUND
+#  CLDNN_INCLUDE_DIRS
+#  CLDNN_LIBRARIES
+#  CLDNN_LIBRARY_DIRS
+
+include(FindPackageHandleStandardArgs)
+
+set(CLDNN_ROOT_DIR "" CACHE PATH "Folder contains Intel clDNN")
+
+find_path(CLDNN_INCLUDE_DIR CPP/cldnn_defs.h
+    HINTS ${CLDNN_ROOT_DIR}
+    PATH_SUFFIXES api include/clDNN)
+
+find_library(CLDNN_LIBRARY clDNN64
+    HINTS ${CLDNN_ROOT_DIR}
+    PATH_SUFFIXES build/out/Linux64/Release build/out/Linux64/Debug lib)
+
+find_package_handle_standard_args(
+    clDNN DEFAULT_MSG CLDNN_INCLUDE_DIR CLDNN_LIBRARY)
+
+if(CLDNN_FOUND)
+    set(CLDNN_INCLUDE_DIRS ${CLDNN_INCLUDE_DIR})
+    set(CLDNN_LIBRARIES ${CLDNN_LIBRARY})
+    message(STATUS "Found Intel clDNN: (include: ${CLDNN_INCLUDE_DIR}, library: ${CLDNN_LIBRARY})")
+    mark_as_advanced(CLDNN_ROOT_DIR CLDNN_LIBRARY CLDNN_INCLUDE_DIR)
+endif()