Fix not generator_py not linking to libpython

Author: Tobias-Fischer

patch/ros-humble-rosidl-generator-py.patch

@@ -10,7 +10,7 @@ index a6d8263..ecae76b 100644
 
  # Get a list of typesupport implementations from valid rmw implementations.
  rosidl_generator_py_get_typesupports(_typesupport_impls)
-@@ -165,52 +166,23 @@ set(rosidl_generator_py_suffix "__rosidl_generator_py")
+@@ -165,52 +166,27 @@ set(rosidl_generator_py_suffix "__rosidl_generator_py")
  set(_target_name_lib "${rosidl_generate_interfaces_TARGET}${rosidl_generator_py_suffix}")
  add_library(${_target_name_lib} SHARED ${_generated_c_files})
  target_link_libraries(${_target_name_lib}
@@ -58,7 +58,11 @@ index a6d8263..ecae76b 100644
 -  message(STATUS "Using numpy include directory: ${_output}")
 -  target_include_directories(${_target_name_lib} PUBLIC "${_output}")
 -endif()
-+target_link_libraries(${_target_name_lib} PRIVATE Python3::NumPy Python3::Module)
++if(APPLE)
++set_target_properties(${_target_name_lib} PROPERTIES LINK_FLAGS "-undefined dynamic_lookup")
++else()
++target_link_libraries(${_target_name_lib} PUBLIC Python3::NumPy Python3::Module Python3::Python)
++endif()
 
  rosidl_get_typesupport_target(c_typesupport_target "${rosidl_generate_interfaces_TARGET}" "rosidl_typesupport_c")
 -target_link_libraries(${_target_name_lib} ${c_typesupport_target})