[onert/python] Fix build issue on cross build (#11755)

This commit resolves python binding API build issue on cross build.

ONE-DCO-1.0-Signed-off-by: Hyeongseok Oh <[email protected]>

runtime/onert/python/api/CMakeLists.txt

@@ -2,15 +2,12 @@
 
 # refer to https://github.com/Samsung/ONE/issues/11368
 
-if(CMAKE_CROSSCOMPILING)
-    set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY "Set to find packages only in cross root path by force")
-endif()
-
-find_package(Python COMPONENTS Interpreter Development)
-
 # Tell pybind11 where the target python installation is
-set(PYTHON_INCLUDE_DIRS ${Python_INCLUDE_DIRS} CACHE INTERNAL "Cross python include path")
-set(PYTHON_LIBRARIES ${Python_LIBRARIES} CACHE INTERNAL "Cross python include path")
+#
+# FindPythonLibs is deprecated since 3.12, and recommand to use FindPython.
+# But on cross compile, FindPython is not working for target environment
+# For workaround, use PythonLibs
+find_package(PythonLibs REQUIRED)
 set(PYTHON_MODULE_PREFIX "lib" CACHE INTERNAL "Cross python lib prefix")
 set(PYTHON_MODULE_EXTENSION ".so" CACHE INTERNAL "Cross python lib extension")
 
@@ -26,12 +23,8 @@ endif()
 
 # Add the Python module
 file(GLOB_RECURSE NNFW_API_PYBIND_SOURCES "src/*.cc")
-add_library(nnfw_api_pybind MODULE ${NNFW_API_PYBIND_SOURCES})
-
-# Add the nnfw api and Pybind11 header
-target_include_directories(nnfw_api_pybind PRIVATE ${pybind11_SOURCE_DIR}/include)
-target_include_directories(nnfw_api_pybind PRIVATE ${PYTHON_INCLUDE_DIRS})
-target_include_directories(nnfw_api_pybind PRIVATE include ../../api/include)
+pybind11_add_module(nnfw_api_pybind ${NNFW_API_PYBIND_SOURCES})
+target_include_directories(nnfw_api_pybind PRIVATE include)
 target_link_libraries(nnfw_api_pybind PRIVATE nnfw-dev)
 
 # Install the Python module