initial buildroot for linux 5.15

package/opkg-utils/Config.in

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+config BR2_PACKAGE_OPKG_UTILS
+	bool "opkg-utils"
+	depends on !BR2_nios2 || BR2_PACKAGE_BUSYBOX # binutils
+	depends on BR2_USE_MMU # bash, python3
+	depends on BR2_USE_WCHAR # python3
+	depends on BR2_TOOLCHAIN_HAS_THREADS # python3 <- libffi
+	depends on !BR2_STATIC_LIBS # python3
+	depends on !BR2_PACKAGE_PYTHON # python3
+	select BR2_PACKAGE_BINUTILS if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_BINUTILS_TARGET if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_COREUTILS if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_DIFFUTILS if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_FINDUTILS if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_GREP if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_GZIP if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_SED if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_TAR if !BR2_PACKAGE_BUSYBOX # runtime
+	select BR2_PACKAGE_BUSYBOX_SHOW_OTHERS # bash
+	select BR2_PACKAGE_BASH # runtime
+	select BR2_PACKAGE_PYTHON3 # runtime
+	help
+	  Helper scripts for use with the opkg package manager.
+
+	  https://git.yoctoproject.org/cgit/cgit.cgi/opkg-utils/
+
+comment "opkg-utils needs a toolchain w/ wchar, threads, dynamic library"
+	depends on !BR2_nios2 || BR2_PACKAGE_BUSYBOX
+	depends on BR2_USE_MMU
+	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS
+
+comment "opkg-utils needs python3"
+	depends on !BR2_nios2 || BR2_PACKAGE_BUSYBOX
+	depends on BR2_USE_MMU
+	depends on BR2_PACKAGE_PYTHON

package/opkg-utils/Config.in.host

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+config BR2_PACKAGE_HOST_OPKG_UTILS
+	bool "host opkg-utils"
+	help
+	  Helper scripts for use with the opkg package manager.
+
+	  https://git.yoctoproject.org/cgit/cgit.cgi/opkg-utils/

package/opkg-utils/opkg-utils.hash

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+# Locally calculated
+sha256  e0fcaab51bff2149bd6560fb4238319d502dd99b581f66763d702e75c224736d  opkg-utils-0.4.5-br1.tar.gz
+sha256  32b1062f7da84967e7019d01ab805935caa7ab7321a7ced0e30ebe75e5df1670  COPYING

package/opkg-utils/opkg-utils.mk

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+################################################################################
+#
+# opkg-utils
+#
+################################################################################
+
+OPKG_UTILS_VERSION = 0.4.5
+OPKG_UTILS_SITE = https://git.yoctoproject.org/git/opkg-utils
+OPKG_UTILS_SITE_METHOD = git
+OPKG_UTILS_LICENSE = GPL-2.0+
+OPKG_UTILS_LICENSE_FILES = COPYING
+
+HOST_OPKG_UTILS_DEPENDENCIES = \
+	$(BR2_PYTHON3_HOST_DEPENDENCY) \
+	host-diffutils \
+	host-lz4 \
+	host-xz
+
+# Nothing to build; only scripts to install.
+define OPKG_UTILS_INSTALL_CMDS
+	$(MAKE) -C $(@D) PREFIX=$(TARGET_DIR) install-utils
+endef
+
+# Nothing to build; only scripts to install.
+define HOST_OPKG_UTILS_INSTALL_CMDS
+	$(MAKE) -C $(@D) PREFIX=$(HOST_DIR) install-utils
+endef
+
+$(eval $(generic-package))
+$(eval $(host-generic-package))