diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7c09339aa..066f7df93 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,6 +24,7 @@ target_include_directories(${TARGET_NAME} PUBLIC
 
 target_link_directories(${TARGET_NAME} PUBLIC
     ${ALL_LIB_DIR}
+    ${PYTHON_LIBRARIES}
 )
 
 if (DEFINED ALL_EXT_OBJ)
diff --git a/setup.py b/setup.py
index 9e367e0fd..76b82ed1a 100644
--- a/setup.py
+++ b/setup.py
@@ -146,7 +146,7 @@ def __init__(self,
         self.sources = sources
         self.include_dirs = include_dirs
         self.include_dirs.append(sysconfig.get_paths()['include'])
-        if sys.platform.startswith('linux'):
+        if sys.platform.startswith('linux') or sys.platform.startswith('darwin'):
             self.include_dirs.append(sysconfig.get_paths()['platinclude'])
         self.libraries = libraries
         self.library_dirs = library_dirs
@@ -176,9 +176,14 @@ def build_cmake(self, ext):
 
         def concat_paths(paths):
             return ''.join(path.replace('\\', '/') + ";" for path in paths)
+        if not MAC:
+            py_lib = pathlib.Path(sysconfig.get_paths()['stdlib']).parent / 'libs'
+        else:
+            py_lib = pathlib.Path(sysconfig.get_paths()['stdlib'])
+        #ext.library_dirs.append(str(py_lib))
 
-        py_lib = pathlib.Path(sysconfig.get_paths()['stdlib']).parent / 'libs'
-        ext.library_dirs.append(str(py_lib))
+        if MAC:
+            ext.libraries.append('python' + sysconfig.get_config_var('VERSION'))
 
         config = 'Debug' if DEBUG else 'Release'
         lib_output_dir = str(extdir.parent.absolute())
@@ -187,12 +192,23 @@ def concat_paths(paths):
         all_src = concat_paths(all_files)
         all_defs = ''.join(mac[0] + ";" for mac in ext.define_macros)
         all_libs = ''.join(f"{lib};" for lib in ext.libraries)
-        all_ext_link = ''.join(f"{arg};" for arg in ext.extra_link_args)
+        all_ext_link = ' '.join(ext.extra_link_args)
         all_comp_args = ''.join(f"{arg};" for arg in ext.extra_compile_args)
         all_lib_dirs = concat_paths(ext.library_dirs)
+        #all_lib_dirs = ' '.join(ext.library_dirs)
+        #all_lib_dirs = []
+        #for lib_dir in ext.library_dirs:
+         #   all_lib_dirs.append('-L"{}"'.format(lib_dir))
+        #    all_lib_dirs.append('-Wl,-rpath,"{}"'.format(lib_dir))
+        #all_lib_dirs = ' '.join(all_lib_dirs)
         all_inc_dirs = concat_paths(ext.include_dirs)
         all_ext_objs = concat_paths(ext.extra_objects)
 
+        print(all_lib_dirs)
+        print(all_libs)
+        #print(pathlib.Path(sysconfig.get_paths()['stdlib']).parent)
+        #exit(1)
+
         lib_mode = "RUNTIME" if WIN else "LIBRARY"
 
         cmake_args = [
@@ -221,6 +237,7 @@ def concat_paths(paths):
             build_args += [f'-j{cpu_count}']
 
         print(cmake_args)
+        #exit(1)
         os.chdir(str(build_temp))
         self.spawn(['cmake', str(cwd)] + cmake_args)
         if not self.dry_run:
@@ -625,10 +642,11 @@ def get_packages(base, parent='', r=None):
         extra_objects=ext_objects,
     ),
 
-    Extension(
+    CMakeExtension(
         name="chempy.champ._champ",
         sources=get_sources(['contrib/champ']),
         include_dirs=champ_inc_dirs,
+        library_dirs=lib_dirs,
     ),
 ]