initial buildroot for linux 5.15

package/luaposix/Config.in

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+config BR2_PACKAGE_LUAPOSIX
+	bool "luaposix"
+	# "bit32" is included in Lua 5.2+. luajit has an equivalent
+	# "bit" module, but since it has a different name, luaposix
+	# doesn't find it.
+	select BR2_PACKAGE_LUA_BIT32 if BR2_PACKAGE_LUAINTERPRETER_ABI_VERSION_5_1 # runtime
+	help
+	  This is a POSIX binding for LuaJIT, Lua 5.1 through 5.4;
+	  like most libraries it simply binds to C APIs on the
+	  underlying system, so it won't work on non-POSIX systems.
+	  However, it does try to detect the level of POSIX conformance
+	  of the underlying system and bind only available APIs.
+
+	  https://github.com/luaposix/luaposix

package/luaposix/luaposix.hash

@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  1b5c48d2abd59de0738d1fc1e6204e44979ad2a1a26e8e22a2d6215dd502c797  luaposix-35.1.tar.gz
+sha256  f50bc0f3197523b1709f31707425f2de95f8a45534b081a6b564179ab059e850  LICENSE

package/luaposix/luaposix.mk

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+################################################################################
+#
+# luaposix
+#
+################################################################################
+
+LUAPOSIX_VERSION = 35.1
+LUAPOSIX_SITE = $(call github,luaposix,luaposix,v$(LUAPOSIX_VERSION))
+LUAPOSIX_LICENSE = MIT
+LUAPOSIX_LICENSE_FILES = LICENSE
+LUAPOSIX_DEPENDENCIES = luainterpreter host-lua
+
+define LUAPOSIX_BUILD_CMDS
+	(cd $(@D); \
+		$(LUA_RUN) build-aux/luke \
+		CC="$(TARGET_CC)" \
+		CFLAGS="$(TARGET_CFLAGS)" \
+		LUA_INCDIR=$(STAGING_DIR)/usr/include \
+	)
+endef
+
+define LUAPOSIX_INSTALL_TARGET_CMDS
+	(cd $(@D); \
+		$(LUA_RUN) build-aux/luke install \
+		INST_LIBDIR="$(TARGET_DIR)/usr/lib/lua/$(LUAINTERPRETER_ABIVER)" \
+		INST_LUADIR="$(TARGET_DIR)/usr/share/lua/$(LUAINTERPRETER_ABIVER)" \
+	)
+endef
+
+$(eval $(generic-package))