initial buildroot for linux 5.15

package/python-greenlet/Config.in

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+config BR2_PACKAGE_PYTHON_GREENLET_ARCH_SUPPORTS
+	bool
+	default y if BR2_arm || BR2_armeb
+	default y if BR2_aarch64
+	default y if BR2_csky
+	default y if BR2_m68k
+	default y if BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
+	default y if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
+	default y if BR2_riscv
+	default y if BR2_sparc || BR2_sparc64
+	default y if BR2_i386 || BR2_x86_64
+
+config BR2_PACKAGE_PYTHON_GREENLET
+	bool "python-greenlet"
+	depends on BR2_PACKAGE_PYTHON_GREENLET_ARCH_SUPPORTS
+	help
+	  Lightweight in-process concurrent programming.
+
+	  https://github.com/python-greenlet/greenlet

package/python-greenlet/python-greenlet.hash

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+# md5, sha256 from https://pypi.org/pypi/greenlet/json
+md5  f424fbd9afeed575dd2ba5f0ac66e30b  greenlet-1.1.2.tar.gz
+sha256  e30f5ea4ae2346e62cedde8794a56858a67b878dd79f7df76a0767e356b1744a  greenlet-1.1.2.tar.gz
+# Locally computed sha256 checksums
+sha256  769831d6e5dfaf2c20802faccff1fafb4c2025dd8f6253dfa47fcad59d4d0979  LICENSE
+sha256  e5ff3c23c110e494cd7d736c10fd96d462457bafeca310840db6527298c7d46b  LICENSE.PSF

package/python-greenlet/python-greenlet.mk

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+################################################################################
+#
+# python-greenlet
+#
+################################################################################
+
+PYTHON_GREENLET_VERSION = 1.1.2
+PYTHON_GREENLET_SOURCE = greenlet-$(PYTHON_GREENLET_VERSION).tar.gz
+PYTHON_GREENLET_SITE = https://files.pythonhosted.org/packages/0c/10/754e21b5bea89d0e73f99d60c83754df7cc64db74f47d98ab187669ce341
+PYTHON_GREENLET_SETUP_TYPE = setuptools
+PYTHON_GREENLET_LICENSE = MIT, PSF-2.0
+PYTHON_GREENLET_LICENSE_FILES = LICENSE LICENSE.PSF
+
+$(eval $(python-package))