initial buildroot for linux 5.15

package/sed/Config.in

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+config BR2_PACKAGE_SED
+	bool "sed"
+	depends on BR2_USE_WCHAR
+	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
+	help
+	  sed (stream editor) is a non-interactive command-line text
+	  editor.
+
+	  https://www.gnu.org/software/sed/
+
+comment "sed needs a toolchain w/ wchar"
+	depends on !BR2_USE_WCHAR
+	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS

package/sed/sed.hash

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+# Locally calculated after checking pgp signature
+# https://ftp.gnu.org/gnu/sed/sed-4.8.tar.xz.sig
+# with the key 155D3FC500C834486D1EEA677FD9FCCB000BEEEE
+sha256  f79b0cfea71b37a8eeec8490db6c5f7ae7719c35587f21edb0617f370eeff633  sed-4.8.tar.xz
+# Locally calculated
+sha256  e79e9c8a0c85d735ff98185918ec94ed7d175efc377012787aebcf3b80f0d90b  COPYING

package/sed/sed.mk

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+################################################################################
+#
+# sed
+#
+################################################################################
+
+SED_VERSION = 4.8
+SED_SOURCE = sed-$(SED_VERSION).tar.xz
+SED_SITE = $(BR2_GNU_MIRROR)/sed
+SED_LICENSE = GPL-3.0
+SED_LICENSE_FILES = COPYING
+SED_CPE_ID_VENDOR = gnu
+
+SED_CONF_OPTS = \
+	--bindir=/bin \
+	--libdir=/lib \
+	--libexecdir=/usr/lib \
+	--sysconfdir=/etc \
+	--datadir=/usr/share \
+	--mandir=/usr/share/man \
+	--infodir=/usr/share/info \
+	--include=$(STAGING_DIR)/usr/include
+
+$(eval $(autotools-package))