diff --git a/CMakeLists.txt b/CMakeLists.txt
index 22a699711..26abf10b2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,24 +29,14 @@ target_link_directories(${TARGET_NAME} PUBLIC
     ${ALL_LIB_DIR}
 )
 
-if (DEFINED ALL_EXT_OBJ)
-    add_library(ext_obj OBJECT IMPORTED PRIVATE)
 
-    set_target_properties(ext_obj PROPERTIES
-        IMPORTED_OBJECTS ${ALL_EXT_OBJ}
-    )
-    target_link_libraries(${TARGET_NAME}
-    ${ALL_LIB}
-    $<TARGET_OBJECTS:ext_obj>
-    ${ALL_EXT_LINK}
-)
-else()
-    target_link_libraries(${TARGET_NAME}
+if(APPLE)
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -undefined dynamic_lookup")
+endif()
+target_link_libraries(${TARGET_NAME}
     ${ALL_LIB}
     ${ALL_EXT_LINK}
-    "-undefined dynamic_lookup"
 )
-endif()
 
 target_compile_definitions(${TARGET_NAME} PUBLIC
     ${ALL_DEF}
diff --git a/setup.py b/setup.py
index ea5fa310c..5657d49f6 100644
--- a/setup.py
+++ b/setup.py
@@ -139,8 +139,7 @@ def __init__(self,
                  library_dirs=[],
                  define_macros=[],
                  extra_link_args=[],
-                 extra_compile_args=[],
-                 extra_objects=[]):
+                 extra_compile_args=[]):
         # don't invoke the original build_ext for this special extension
         super().__init__(name, sources=[])
         self.sources = sources
@@ -150,7 +149,6 @@ def __init__(self,
         self.define_macros = define_macros
         self.extra_link_args = extra_link_args
         self.extra_compile_args = extra_compile_args
-        self.extra_objects = extra_objects
 
 
 class build_ext_pymol(build_ext):
@@ -189,7 +187,6 @@ def concat_paths(paths):
         all_comp_args = ''.join(f"{arg};" for arg in ext.extra_compile_args)
         all_lib_dirs = concat_paths(ext.library_dirs)
         all_inc_dirs = concat_paths(ext.include_dirs)
-        all_ext_objs = concat_paths(ext.extra_objects)
 
         lib_mode = "RUNTIME" if WIN else "LIBRARY"
 
@@ -209,9 +206,6 @@ def concat_paths(paths):
             f"-DSHARED_SUFFIX={shared_suffix}"
         ]
 
-        if all_ext_objs:
-            cmake_args.append("-DALL_EXT_OBJ=" + all_ext_objs)
-
         # example of build args
         build_args = ['--config', config]
         if not WIN:  # Win /MP flag on compilation level
@@ -622,7 +616,6 @@ def get_packages(base, parent='', r=None):
         define_macros=def_macros,
         extra_link_args=ext_link_args,
         extra_compile_args=ext_comp_args,
-        extra_objects=ext_objects,
     ),
 
     CMakeExtension(