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package/python: add optional support for lib2to3

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Kodi is in transition to support python3 instead of python2:
https://kodi.wiki/view/General_information_about_migration_to_Python_3

"For Kodi 18 (Leia), only addons that are compatible with both Python 2
 and 3 will be accepted to the official addon repository."

Some of these addons depend on the Kodi addon script.module.future to
provide support for both python versions.

The script.module.future addon contains python-future:
https://kodi.wiki/view/General_information_about_migration_to_Python_3#Future
which in turn needs lib2to3 to be included in the target build of
python2: http://python-future.org/automatic_conversion.html

Kodi addons depending on the script.module.future addon are crashing on
buildroot due to lib2to3 missing in the build.

LibreELEC added lib2to3 to python2 to fix the problem:
https://forum.libreelec.tv/thread/21239-lib2to3-pgen2-parse-missing/
https://github.com/LibreELEC/LibreELEC.tv/pull/4147

This patch provides the Config.in option to be used by Kodi.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Bernd Kuhls 2020-02-22 19:54:59 +01:00 committed by Thomas Petazzoni
parent 26293479c4
commit 480e926db4
2 changed files with 11 additions and 1 deletions
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5
package/python/Config.in
View File

@ -39,6 +39,11 @@ menu "core python modules"
comment "The following modules are unusual or require extra libraries"
config BR2_PACKAGE_PYTHON_2TO3
bool "2to3 module"
help
code translation from python 2 to 3
config BR2_PACKAGE_PYTHON_BZIP2
bool "bzip2 module"
select BR2_PACKAGE_BZIP2

7
package/python/python.mk
View File

@ -118,6 +118,12 @@ HOST_PYTHON_CONF_OPTS += --enable-unicode=ucs4
PYTHON_CONF_OPTS += --enable-unicode=ucs4
endif
ifeq ($(BR2_PACKAGE_PYTHON_2TO3),y)
PYTHON_CONF_OPTS += --enable-lib2to3
else
PYTHON_CONF_OPTS += --disable-lib2to3
endif
ifeq ($(BR2_PACKAGE_PYTHON_BZIP2),y)
PYTHON_DEPENDENCIES += bzip2
else
@ -165,7 +171,6 @@ PYTHON_CONF_OPTS += \
--with-system-ffi \
--disable-pydoc \
--disable-test-modules \
--disable-lib2to3 \
--disable-gdbm \
--disable-tk \
--disable-nis \