bitbake: fetch2: runfetchcmd(): unset _PYTHON_SYSCONFIGDATA_NAME

Since warrior, python3native.bbclass sets _PYTHON_SYSCONFIGDATA_NAME;
unfortunately, this also affects Python scripts run as fetch commands like
git-make-shallow, breaking it with a message like

    Failed to import the site module
    Traceback (most recent call last):
      File "/usr/lib/python3.6/site.py", line 570, in <module>
        main()
      File "/usr/lib/python3.6/site.py", line 556, in main
        known_paths = addusersitepackages(known_paths)
      File "/usr/lib/python3.6/site.py", line 288, in addusersitepackages
        user_site = getusersitepackages()
      File "/usr/lib/python3.6/site.py", line 264, in getusersitepackages
        user_base = getuserbase() # this will also set USER_BASE
      File "/usr/lib/python3.6/site.py", line 254, in getuserbase
        USER_BASE = get_config_var('userbase')
      File "/usr/lib/python3.6/sysconfig.py", line 607, in get_config_var
        return get_config_vars().get(name)
      File "/usr/lib/python3.6/sysconfig.py", line 550, in get_config_vars
        _init_posix(_CONFIG_VARS)
      File "/usr/lib/python3.6/sysconfig.py", line 421, in _init_posix
        _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
    ModuleNotFoundError: No module named '_sysconfigdata'

on an Ubuntu 18.04 system (and likely others) when building with
BB_GIT_SHALLOW and BB_GENERATE_SHALLOW_TARBALLS.

Unset _PYTHON_SYSCONFIGDATA_NAME in runfetchcmd() to work around this.

(Bitbake rev: 6783104f18a8a14ddd88932720cd80dffeada63d)

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions