[Buildroot] [PATCH 2/2] package/python-installer: migrate setup type to flit

[James Hilliard]

This package is moving to flit and will soon be dropping distutils
compatibility support.

We need to use flit-bootstrap as opposed to the normal flit setup
type since host-python-pypa-build depends on host-python-installer.

We need to add the src directory to the PYTHONPATH so that installer
can run from the src directory when installing itself.

Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
---
 package/python-installer/python-installer.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package/python-installer/python-installer.mk b/package/python-installer/python-installer.mk
index 862a251415..5bb14e315e 100644
--- a/package/python-installer/python-installer.mk
+++ b/package/python-installer/python-installer.mk
@@ -9,6 +9,7 @@ PYTHON_INSTALLER_SOURCE = installer-$(PYTHON_INSTALLER_VERSION).tar.gz
 PYTHON_INSTALLER_SITE = https://files.pythonhosted.org/packages/74/b7/9187323cd732840f1cddd6a9f05961406636b50c799eef37c920b63110c0
 PYTHON_INSTALLER_LICENSE = MIT
 PYTHON_INSTALLER_LICENSE_FILES = LICENSE
-PYTHON_INSTALLER_SETUP_TYPE = distutils
+PYTHON_INSTALLER_SETUP_TYPE = flit-bootstrap
+HOST_PYTHON_INSTALLER_ENV = PYTHONPATH="$(@D)/src"
 
 $(eval $(host-python-package))
-- 
2.25.1