package/python-pyicu: fix build
Fixes:
http://autobuild.buildroot.net/results/977/977c043615603dd3541e23b81c5f11374606aff6/
Set environment variables to cross-compile friendly values, this prevents
icu-config picking up host libraries:
https://gitlab.pyicu.org/main/pyicu/-/blob/main/setup.py#L89
https://gitlab.pyicu.org/main/pyicu/-/blob/main/setup.py#L179
https://gitlab.pyicu.org/main/pyicu/-/blob/main/setup.py#L216
This follows the upstream build docs:
https://gitlab.pyicu.org/main/pyicu#building-pyicu
Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
(cherry picked from commit c15e60c106)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
607450ac62