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package/python3: 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
python3: 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 python3 to fix the problem:
https://forum.libreelec.tv/thread/21239-lib2to3-pgen2-parse-missing/
https://github.com/LibreELEC/LibreELEC.tv/pull/4146

This patch provides the Config.in option to be used by Kodi 19.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[yann.morin.1998@free.fr:
  - fix conflicts due to local changes in author's tree
  - fix typ in variabl name (PYTHON_CONF_OPTS -> PYTHON3_CONF_OPTS)
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Bernd Kuhls 2021-01-03 16:03:06 +01:00 committed by Yann E. MORIN
parent ac992501e3
commit f47e3a5331
2 changed files with 11 additions and 1 deletions
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5
package/python3/Config.in
View File

@ -41,6 +41,11 @@ menu "core python3 modules"
comment "The following modules are unusual or require extra libraries"
config BR2_PACKAGE_PYTHON3_2TO3
bool "2to3 module"
help
code translation from python 2 to 3
config BR2_PACKAGE_PYTHON3_BZIP2
bool "bz2 module"
select BR2_PACKAGE_BZIP2

7
package/python3/python3.mk
View File

@ -49,6 +49,12 @@ endif
PYTHON3_INSTALL_STAGING = YES
ifeq ($(BR2_PACKAGE_PYTHON3_2TO3),y)
PYTHON3_CONF_OPTS += --enable-lib2to3
else
PYTHON3_CONF_OPTS += --disable-lib2to3
endif
ifeq ($(BR2_PACKAGE_PYTHON3_READLINE),y)
PYTHON3_DEPENDENCIES += readline
else
@ -156,7 +162,6 @@ PYTHON3_CONF_OPTS += \
--with-system-ffi \
--disable-pydoc \
--disable-test-modules \
--disable-lib2to3 \
--disable-tk \
--disable-nis \
--disable-idle3 \