initial buildroot for linux 5.15

package/python-numpy/Config.in

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+config BR2_PACKAGE_PYTHON_NUMPY_ARCH_SUPPORTS
+	bool
+	# Numpy has some CPU specific code
+	default y if BR2_arc
+	default y if BR2_aarch64
+	default y if BR2_arm
+	default y if BR2_armeb
+	default y if BR2_i386
+	default y if BR2_mips
+	default y if BR2_mipsel
+	default y if BR2_powerpc
+	default y if BR2_powerpc64
+	default y if BR2_sh
+	default y if BR2_x86_64
+
+config BR2_PACKAGE_PYTHON_NUMPY
+	bool "python-numpy"
+	depends on BR2_PACKAGE_PYTHON3
+	depends on BR2_PACKAGE_PYTHON_NUMPY_ARCH_SUPPORTS
+	# python-numpy needs fenv.h which is not provided by uclibc
+	depends on BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL
+	help
+	  NumPy is the fundamental package for scientific computing
+	  with Python.
+
+	  Note that NumPy needs fenv.h fully supported by the
+	  C library.
+
+	  http://www.numpy.org/
+
+comment "python-numpy needs glibc or musl"
+	depends on BR2_PACKAGE_PYTHON3
+	depends on BR2_PACKAGE_PYTHON_NUMPY_ARCH_SUPPORTS
+	depends on !(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)

package/python-numpy/python-numpy.hash

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+# Copied from https://github.com/numpy/numpy/releases/tag/v1.18.1
+sha256  da204ce460aa4247e595b7c7189d2fb2ed5f796bc03197055de01dac61d0125e	numpy-1.18.2.tar.gz
+# License files, locally calculated
+sha256  ad81d0c21843ba6ce6fe5fa3eaacb61120be70cd798c52f63df3f4c12a843f0c	LICENSE.txt
+sha256  d3045980e80a6b39f98586c24bc7f39a7625b4b9f08ce72e367d12814743d047	numpy/core/src/multiarray/dragon4.c
+sha256  426a5a484480f57a295db48c2c04f47bb3274752dd82a7fd6541dfa2cb90f641	doc/sphinxext/LICENSE.txt
+sha256	154a8706fa0fdeff1073bf6239c4ecf51f562ab107066eef839dade1a45c824c	doc/scipy-sphinx-theme/LICENSE.txt
+sha256  a14cc25e10d40a3aa705b7de2fb764a6535d8ee9b2db4e1724900585457dfd55	numpy/linalg/lapack_lite/LICENSE.txt
+sha256  badf51c7e3e7de9c7630bd069780f5c197b846ef7660b342a1e58d5553592d8e	tools/npy_tempita/license.txt

package/python-numpy/python-numpy.mk

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+################################################################################
+#
+# python-numpy
+#
+################################################################################
+
+PYTHON_NUMPY_VERSION = 1.18.2
+PYTHON_NUMPY_SOURCE = numpy-$(PYTHON_NUMPY_VERSION).tar.gz
+PYTHON_NUMPY_SITE = https://github.com/numpy/numpy/releases/download/v$(PYTHON_NUMPY_VERSION)
+PYTHON_NUMPY_LICENSE = BSD-3-Clause, BSD-2-Clause, PSF, Apache-2.0, MIT, Zlib
+PYTHON_NUMPY_LICENSE_FILES = LICENSE.txt doc/sphinxext/LICENSE.txt \
+			doc/scipy-sphinx-theme/LICENSE.txt \
+			numpy/linalg/lapack_lite/LICENSE.txt \
+			tools/npy_tempita/license.txt \
+			numpy/core/src/multiarray/dragon4.c
+PYTHON_NUMPY_SETUP_TYPE = setuptools
+PYTHON_NUMPY_DEPENDENCIES = host-python-cython
+HOST_PYTHON_NUMPY_DEPENDENCIES = host-python-cython
+
+ifeq ($(BR2_PACKAGE_LAPACK),y)
+PYTHON_NUMPY_DEPENDENCIES += lapack
+else
+PYTHON_NUMPY_ENV += BLAS=None LAPACK=None
+endif
+
+PYTHON_NUMPY_BUILD_OPTS = --fcompiler=None
+
+define PYTHON_NUMPY_CONFIGURE_CMDS
+	-rm -f $(@D)/site.cfg
+	echo "[DEFAULT]" >> $(@D)/site.cfg
+	echo "library_dirs = $(STAGING_DIR)/usr/lib" >> $(@D)/site.cfg
+	echo "include_dirs = $(STAGING_DIR)/usr/include" >> $(@D)/site.cfg
+endef
+
+# Some package may include few headers from NumPy, so let's install it
+# in the staging area.
+PYTHON_NUMPY_INSTALL_STAGING = YES
+
+$(eval $(python-package))
+$(eval $(host-python-package))