diff -urNp -x '*.orig' Python-3.9.2.org/Lib/distutils/command/install.py Python-3.9.2/Lib/distutils/command/install.py
--- Python-3.9.2.org/Lib/distutils/command/install.py	2021-02-19 13:31:44.000000000 +0100
+++ Python-3.9.2/Lib/distutils/command/install.py	2021-02-25 18:40:00.705652346 +0100
@@ -29,14 +29,14 @@ WINDOWS_SCHEME = {
 
 INSTALL_SCHEMES = {
     'unix_prefix': {
-        'purelib': '$base/lib/python$py_version_short/site-packages',
+        'purelib': '$base/$platlibdir/python$py_version_short/site-packages',
         'platlib': '$platbase/$platlibdir/python$py_version_short/site-packages',
         'headers': '$base/include/python$py_version_short$abiflags/$dist_name',
         'scripts': '$base/bin',
         'data'   : '$base',
         },
     'unix_home': {
-        'purelib': '$base/lib/python',
+        'purelib': '$base/$platlibdir/python',
         'platlib': '$base/$platlibdir/python',
         'headers': '$base/include/python/$dist_name',
         'scripts': '$base/bin',
diff -urNp -x '*.orig' Python-3.9.2.org/Lib/distutils/sysconfig.py Python-3.9.2/Lib/distutils/sysconfig.py
--- Python-3.9.2.org/Lib/distutils/sysconfig.py	2021-02-19 13:31:44.000000000 +0100
+++ Python-3.9.2/Lib/distutils/sysconfig.py	2021-02-25 18:40:00.705652346 +0100
@@ -145,13 +145,13 @@ def get_python_lib(plat_specific=0, stan
             prefix = plat_specific and EXEC_PREFIX or PREFIX
 
     if os.name == "posix":
-        if plat_specific or standard_lib:
+        if plat_specific or standard_lib or prefix != "/usr":
             # Platform-specific modules (any module from a non-pure-Python
             # module distribution) or standard Python library modules.
             libdir = sys.platlibdir
         else:
             # Pure Python
-            libdir = "lib"
+            libdir = "share"
         libpython = os.path.join(prefix, libdir,
                                  "python" + get_python_version())
         if standard_lib:
diff -urNp -x '*.orig' Python-3.9.2.org/Lib/distutils/tests/test_install.py Python-3.9.2/Lib/distutils/tests/test_install.py
--- Python-3.9.2.org/Lib/distutils/tests/test_install.py	2021-02-19 13:31:44.000000000 +0100
+++ Python-3.9.2/Lib/distutils/tests/test_install.py	2021-02-25 18:40:00.705652346 +0100
@@ -56,7 +56,7 @@ class InstallTestCase(support.TempdirMan
             expected = os.path.normpath(expected)
             self.assertEqual(got, expected)
 
-        libdir = os.path.join(destination, "lib", "python")
+        libdir = os.path.join(destination, sys.platlibdir, "python")
         check_path(cmd.install_lib, libdir)
         platlibdir = os.path.join(destination, sys.platlibdir, "python")
         check_path(cmd.install_platlib, platlibdir)
diff -urNp -x '*.orig' Python-3.9.2.org/Lib/site.py Python-3.9.2/Lib/site.py
--- Python-3.9.2.org/Lib/site.py	2021-02-19 13:31:44.000000000 +0100
+++ Python-3.9.2/Lib/site.py	2021-02-25 18:40:00.705652346 +0100
@@ -344,6 +344,8 @@ def getsitepackages(prefixes=None):
                                     "python%d.%d" % sys.version_info[:2],
                                     "site-packages")
                 sitepackages.append(path)
+            sitepackages.append(os.path.join(prefix, sys.platlibdir, "site-python"))
+            sitepackages.append(os.path.join(prefix, "share", "python" + sys.version[:3], "site-packages"))
         else:
             sitepackages.append(prefix)
 
diff -urNp -x '*.orig' Python-3.9.2.org/Lib/sysconfig.py Python-3.9.2/Lib/sysconfig.py
--- Python-3.9.2.org/Lib/sysconfig.py	2021-02-19 13:31:44.000000000 +0100
+++ Python-3.9.2/Lib/sysconfig.py	2021-02-25 18:40:00.705652346 +0100
@@ -27,7 +27,7 @@ _INSTALL_SCHEMES = {
     'posix_prefix': {
         'stdlib': '{installed_base}/{platlibdir}/python{py_version_short}',
         'platstdlib': '{platbase}/{platlibdir}/python{py_version_short}',
-        'purelib': '{base}/lib/python{py_version_short}/site-packages',
+        'purelib': '{base}/{platlibdir}/python{py_version_short}/site-packages',
         'platlib': '{platbase}/{platlibdir}/python{py_version_short}/site-packages',
         'include':
             '{installed_base}/include/python{py_version_short}{abiflags}',
@@ -37,10 +37,10 @@ _INSTALL_SCHEMES = {
         'data': '{base}',
         },
     'posix_home': {
-        'stdlib': '{installed_base}/lib/python',
-        'platstdlib': '{base}/lib/python',
-        'purelib': '{base}/lib/python',
-        'platlib': '{base}/lib/python',
+        'stdlib': '{installed_base}/{platlibdir}/python',
+        'platstdlib': '{base}/{platlibdir}/python',
+        'purelib': '{base}/{platlibdir}/python',
+        'platlib': '{base}/{platlibdir}/python',
         'include': '{installed_base}/include/python',
         'platinclude': '{installed_base}/include/python',
         'scripts': '{base}/bin',
@@ -69,7 +69,7 @@ _INSTALL_SCHEMES = {
     'posix_user': {
         'stdlib': '{userbase}/{platlibdir}/python{py_version_short}',
         'platstdlib': '{userbase}/{platlibdir}/python{py_version_short}',
-        'purelib': '{userbase}/lib/python{py_version_short}/site-packages',
+        'purelib': '{userbase}/{platlibdir}/python{py_version_short}/site-packages',
         'platlib': '{userbase}/{platlibdir}/python{py_version_short}/site-packages',
         'include': '{userbase}/include/python{py_version_short}',
         'scripts': '{userbase}/bin',
@@ -490,7 +490,11 @@ def get_config_h_filename():
         else:
             inc_dir = _sys_home or _PROJECT_BASE
     else:
-        inc_dir = get_path('platinclude')
+        if hasattr(sys, 'abiflags'):
+            config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags)
+        else:
+            config_dir_name = 'config'
+        inc_dir = os.path.join(get_path('stdlib'), config_dir_name)
     return os.path.join(inc_dir, 'pyconfig.h')
 
 
diff -urNp -x '*.orig' Python-3.9.2.org/Makefile.pre.in Python-3.9.2/Makefile.pre.in
--- Python-3.9.2.org/Makefile.pre.in	2021-02-19 13:31:44.000000000 +0100
+++ Python-3.9.2/Makefile.pre.in	2021-02-25 18:40:00.705652346 +0100
@@ -1634,9 +1634,9 @@ libainstall:	@DEF_MAKE_RULE@ python-conf
 	@if test -d $(LIBRARY); then :; else \
 		if test "$(PYTHONFRAMEWORKDIR)" = no-framework; then \
 			if test "$(SHLIB_SUFFIX)" = .dll; then \
-				$(INSTALL_DATA) $(LDLIBRARY) $(DESTDIR)$(LIBPL) ; \
+				$(INSTALL_DATA) $(LDLIBRARY) $(DESTDIR)$(LIBDIR) ; \
 			else \
-				$(INSTALL_DATA) $(LIBRARY) $(DESTDIR)$(LIBPL)/$(LIBRARY) ; \
+				$(INSTALL_DATA) $(LIBRARY) $(DESTDIR)$(LIBDIR)/$(LIBRARY) ; \
 			fi; \
 		else \
 			echo Skip install of $(LIBRARY) - use make frameworkinstall; \
diff -urNp -x '*.orig' Python-3.9.2.org/setup.py Python-3.9.2/setup.py
--- Python-3.9.2.org/setup.py	2021-02-19 13:31:44.000000000 +0100
+++ Python-3.9.2/setup.py	2021-02-25 18:40:00.708985783 +0100
@@ -750,7 +750,7 @@ class PyBuildExt(build_ext):
             add_dir_to_list(self.compiler.include_dirs,
                             sysconfig.get_config_var("INCLUDEDIR"))
 
-        system_lib_dirs = ['/lib64', '/usr/lib64', '/lib', '/usr/lib']
+        system_lib_dirs = ['/' + sys.platlibdir, '/usr/' + sys.platlibdir]
         system_include_dirs = ['/usr/include']
         # lib_dirs and inc_dirs are used to search for files;
         # if a file is found in one of those directories, it can
@@ -1039,11 +1039,11 @@ class PyBuildExt(build_ext):
             elif curses_library:
                 readline_libs.append(curses_library)
             elif self.compiler.find_library_file(self.lib_dirs +
-                                                     ['/usr/lib/termcap'],
+                                                     ['/usr/' + sys.platlibdir + '/termcap'],
                                                      'termcap'):
                 readline_libs.append('termcap')
             self.add(Extension('readline', ['readline.c'],
-                               library_dirs=['/usr/lib/termcap'],
+                               library_dirs=['/usr/' + sys.platlibdir + '/termcap'],
                                extra_link_args=readline_extra_link_args,
                                libraries=readline_libs))
         else: