initial buildroot for linux 5.15

package/pixz/Config.in

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+config BR2_PACKAGE_PIXZ
+	bool "pixz"
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_USE_WCHAR # libarchive
+	select BR2_PACKAGE_LIBARCHIVE
+	select BR2_PACKAGE_XZ
+	help
+	  Pixz (pronounced pixie) is a parallel, indexing version of xz.
+
+	  https://github.com/vasi/pixz
+
+comment "pixz needs a toolchain w/ threads, wchar"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR

package/pixz/pixz.hash

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+# Locally computed:
+sha256  e5e32c6eb0bf112b98e74a5da8fb63b9f2cae71800f599d97ce540e150c8ddc5  pixz-1.0.7.tar.xz
+sha256  d036806b4d1efee7c6d86276451c4d833e9798751417e25daae62dfbe348641b  LICENSE

package/pixz/pixz.mk

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+################################################################################
+#
+# pixz
+#
+################################################################################
+
+PIXZ_VERSION = 1.0.7
+PIXZ_SITE = https://github.com/vasi/pixz/releases/download/v$(PIXZ_VERSION)
+PIXZ_SOURCE = pixz-$(PIXZ_VERSION).tar.xz
+PIXZ_DEPENDENCIES = host-pkgconf libarchive xz
+PIXZ_LICENSE = BSD-2-Clause
+PIXZ_LICENSE_FILES = LICENSE
+
+# pixz.1 is actually present, but AC_CHECK_FILE doesn't detect it when
+# cross-compiling, which causes configure to try to regenerate it. So give it a
+# hint to say that it actually is present.
+PIXZ_CONF_ENV = ac_cv_file_src_pixz_1=yes
+
+$(eval $(autotools-package))