no Makefile with PyPy and has own layout for python stdlib, site-packages

distutils/sysconfig.py

@@ -142,6 +142,14 @@ def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
     If 'prefix' is supplied, use it instead of sys.base_prefix or
     sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
     """
+    if IS_PYPY:
+        # PyPy-specific schema
+        if prefix is None:
+            prefix = PREFIX
+        if standard_lib:
+            return os.path.join(prefix, "lib-python", sys.version[0])
+        return os.path.join(prefix, 'site-packages')
+
     if prefix is None:
         if standard_lib:
             prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
@@ -503,6 +511,7 @@ def get_config_vars(*args):
         _config_vars['prefix'] = PREFIX
         _config_vars['exec_prefix'] = EXEC_PREFIX
 
+        if not IS_PYPY:
             # For backward compatibility, see issue19555
             SO = _config_vars.get('EXT_SUFFIX')
             if SO is not None: