--- /dev/null
+Index: b/Makefile.pre.in
+===================================================================
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -156,6 +156,8 @@
+ # configure script arguments
+ CONFIG_ARGS= @CONFIG_ARGS@
+
++# disabled extensions
++DISABLED_EXTENSIONS= @DISABLED_EXTENSIONS@
+
+ # Subdirectories with code
+ SRCDIRS= @SRCDIRS@
+@@ -477,6 +479,7 @@
+ esac; \
+ $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
+ _TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
++ DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
+ $(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
+
+ # Build static library
+@@ -1191,7 +1194,8 @@
+ # Install the dynamically loadable modules
+ # This goes into $(exec_prefix)
+ sharedinstall: sharedmods
+- $(RUNSHARED) $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
++ $(RUNSHARED) DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
++ $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
+ --prefix=$(prefix) \
+ --install-scripts=$(BINDIR) \
+ --install-platlib=$(DESTSHARED) \
+Index: b/configure.ac
+===================================================================
+--- a/configure.ac
++++ b/configure.ac
+@@ -2284,6 +2284,8 @@
+
+ AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+
++AC_SUBST(DISABLED_EXTENSIONS)
++
+ # Check for use of the system expat library
+ AC_MSG_CHECKING(for --with-system-expat)
+ AC_ARG_WITH(system_expat,
+Index: b/setup.py
+===================================================================
+--- a/setup.py
++++ b/setup.py
+@@ -33,7 +33,10 @@
+ COMPILED_WITH_PYDEBUG = ('--with-pydebug' in sysconfig.get_config_var("CONFIG_ARGS"))
+
+ # This global variable is used to hold the list of modules to be disabled.
+-disabled_module_list = []
++try:
++ disabled_module_list = sysconfig.get_config_var("DISABLED_EXTENSIONS").split(" ")
++except KeyError:
++ disabled_module_list = list()
+
+ def add_dir_to_list(dirlist, dir):
+ """Add the directory 'dir' to the list 'dirlist' (at the front) if