--- /dev/null
+Add an option to disable lib2to3
+
+lib2to3 is a library to convert Python 2.x code to Python 3.x. As
+such, it is probably not very useful on embedded system targets.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Signed-off-by: Samuel Martin <s.martin49@gmail.com>
+
+---
+ Makefile.pre.in | 18 ++++++++++++++----
+ configure.ac | 6 ++++++
+ setup.py | 5 +++--
+ 3 files changed, 23 insertions(+), 6 deletions(-)
+
+Index: b/Makefile.pre.in
+===================================================================
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -1107,7 +1107,9 @@
+ (cd $(DESTDIR)$(BINDIR); $(LN) -s pydoc$(VERSION) pydoc3)
+ endif
+ -rm -f $(DESTDIR)$(BINDIR)/2to3
++ifeq (@LIB2TO3@,yes)
+ (cd $(DESTDIR)$(BINDIR); $(LN) -s 2to3-$(VERSION) 2to3)
++endif
+ -rm -f $(DESTDIR)$(BINDIR)/pyvenv
+ (cd $(DESTDIR)$(BINDIR); $(LN) -s pyvenv-$(VERSION) pyvenv)
+ if test "x$(LIPO_32BIT_FLAGS)" != "x" ; then \
+@@ -1147,7 +1149,6 @@
+ html json http dbm xmlrpc \
+ sqlite3 \
+ logging csv wsgiref urllib \
+- lib2to3 lib2to3/fixes lib2to3/pgen2 \
+ ctypes ctypes/macholib \
+ idlelib idlelib/Icons \
+ distutils distutils/command $(XMLLIBSUBDIRS) \
+@@ -1189,9 +1190,6 @@
+ test/test_importlib/namespace_pkgs/module_and_namespace_package \
+ test/test_importlib/namespace_pkgs/module_and_namespace_package/a_test \
+ sqlite3/test \
+- lib2to3/tests \
+- lib2to3/tests/data lib2to3/tests/data/fixers \
+- lib2to3/tests/data/fixers/myfixes \
+ ctypes/test \
+ idlelib/idle_test \
+ distutils/tests \
+@@ -1204,6 +1202,14 @@
+ LIBSUBDIRS += pydoc_data
+ endif
+
++ifeq (@LIB2TO3@,yes)
++LIBSUBDIRS += lib2to3 lib2to3/fixes lib2to3/pgen2
++TESTSUBDIRS += lib2to3/tests \
++ lib2to3/tests/data \
++ lib2to3/tests/data/fixers \
++ lib2to3/tests/data/fixers/myfixes
++endif
++
+ ifeq (@TEST_MODULES@,yes)
+ LIBSUBDIRS += $(TESTSUBDIRS)
+ endif
+@@ -1299,10 +1305,12 @@
+ -d $(LIBDEST)/site-packages -f $(STDLIB_CACHE_FLAGS) \
+ -x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
+ endif
++ifeq (@LIB2TO3@,yes)
+ -PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ $(PYTHON_FOR_BUILD) -m lib2to3.pgen2.driver $(DESTDIR)$(LIBDEST)/lib2to3/Grammar.txt
+ -PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ $(PYTHON_FOR_BUILD) -m lib2to3.pgen2.driver $(DESTDIR)$(LIBDEST)/lib2to3/PatternGrammar.txt
++endif
+
+ # Create the PLATDIR source directory, if one wasn't distributed..
+ $(srcdir)/Lib/$(PLATDIR):
+Index: b/setup.py
+===================================================================
+--- a/setup.py
++++ b/setup.py
+@@ -2201,10 +2201,11 @@
+ import warnings
+ warnings.filterwarnings("ignore",category=DeprecationWarning)
+
+- scripts = ['Tools/scripts/idle3', 'Tools/scripts/2to3',
+- 'Lib/smtpd.py']
++ scripts = ['Tools/scripts/idle3', 'Lib/smtpd.py']
+ if not '--disable-pydoc' in sysconfig.get_config_var("CONFIG_ARGS"):
+ scripts += [ 'Tools/scripts/pydoc3' ]
++ if not '--disable-lib2to3' in sysconfig.get_config_var("CONFIG_ARGS"):
++ scripts += [ 'Tools/scripts/2to3' ]
+
+ setup(# PyPI Metadata (PEP 301)
+ name = "Python",
+Index: b/configure.ac
+===================================================================
+--- a/configure.ac
++++ b/configure.ac
+@@ -2687,6 +2687,12 @@
+ AS_HELP_STRING([--disable-test-modules], [disable test modules]),
+ [ TEST_MODULES="${enableval}" ], [ TEST_MODULES=yes ])
+
++AC_SUBST(LIB2TO3)
++
++AC_ARG_ENABLE(lib2to3,
++ AS_HELP_STRING([--disable-lib2to3], [disable lib2to3]),
++ [ LIB2TO3="${enableval}" ], [ LIB2TO3=yes ])
++
+ # Check for enable-ipv6
+ AH_TEMPLATE(ENABLE_IPV6, [Define if --enable-ipv6 is specified])
+ AC_MSG_CHECKING([if --enable-ipv6 is specified])