fix finding metrics when found empty

Do not try to include empty directories, as cmake will not
explicitely return directiories, which would be searched
by compiler anyway. Such found should still be considered
as successful.

Signed-off-by: Grzegorz Choinski <[email protected]>

Author: Wallted

cmake/find_metrics.cmake

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2021 Intel Corporation
+# Copyright (C) 2021-2022 Intel Corporation
 #
 # SPDX-License-Identifier: MIT
 #
@@ -36,7 +36,7 @@ function(dependency_detect COMPONENT_NAME DLL_NAME VAR_NAME REL_LOCATION IS_THIR
     if(NEO__${VAR_NAME}_FOUND)
       if(DEFINED __tmp_LIBDIR)
         if(NOT NEO__${VAR_NAME}_INCLUDE_DIRS STREQUAL "")
-          string(REPLACE "${NEO__${VAR_NAME}_INCLUDEDIR}" "${LIBRARY_DIR}/include/${DLL_NAME}" NEO__${VAR_NAME}_INCLUDE_DIRS "${NEO__${VAR_NAME}_INCLUDE_DIRS}")
+          string(REPLACE "${NEO__${VAR_NAME}_INCLUDEDIR}" "${LIBRARY_DIR}/include" NEO__${VAR_NAME}_INCLUDE_DIRS "${NEO__${VAR_NAME}_INCLUDE_DIRS}")
         else()
           set(NEO__${VAR_NAME}_INCLUDE_DIRS "${LIBRARY_DIR}/include")
         endif()
@@ -71,9 +71,13 @@ endfunction()
 
 # Metrics Library Detection
 dependency_detect("Metrics Library" libigdml METRICS_LIBRARY "../metrics/library" TRUE)
-include_directories("${NEO__METRICS_LIBRARY_INCLUDE_DIR}")
+if(NOT NEO__METRICS_LIBRARY_INCLUDE_DIR STREQUAL "")
+  include_directories("${NEO__METRICS_LIBRARY_INCLUDE_DIR}")
+endif()
 
 # Metrics Discovery Detection
 dependency_detect("Metrics Discovery" libmd METRICS_DISCOVERY "../metrics/discovery" TRUE)
-include_directories("${NEO__METRICS_DISCOVERY_INCLUDE_DIR}")
+if(NOT NEO__METRICS_DISCOVERY_INCLUDE_DIR STREQUAL "")
+  include_directories("${NEO__METRICS_DISCOVERY_INCLUDE_DIR}")
+endif()