cpio: Fix gnulib alignof implementation on clang

Backport needed patches

(From OE-Core rev: 49d328f2c696360759f00507b8fd5089b2f03e7c)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/cpio/cpio-2.13/0001-Use-__alignof__-with-clang.patch

@@ -0,0 +1,42 @@
+From 6e169bb5fadb73b4dd300b28e9cae1e1772855e8 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sun, 15 Jan 2023 02:05:23 -0800
+Subject: [PATCH] Use __alignof__ with clang.
+
+For clang versions < 8, use the same
+workaround as for GCC versions < 4.9.
+
+Backport couple of gnulib patches squashed
+
+[1] https://git.savannah.gnu.org/cgit/gnulib.git/commit/lib/stdalign.in.h?id=57caf9541d98314102a55dd1cd0b8dc2be747471
+[2] https://git.savannah.gnu.org/cgit/gnulib.git/commit/lib/stdalign.in.h?id=2af490a4c4ce85567296e27be6a9528964ca851e
+
+Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/gnulib.git/commit/lib/stdalign.in.h?id=57caf9541d98314102a55dd1cd0b8dc2be747471]
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gnu/stdalign.in.h | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/gnu/stdalign.in.h b/gnu/stdalign.in.h
+index 5f56eee..e6e6a65 100644
+--- a/gnu/stdalign.in.h
++++ b/gnu/stdalign.in.h
+@@ -53,9 +53,12 @@
+ #undef _Alignof
+ 
+ /* GCC releases before GCC 4.9 had a bug in _Alignof.  See GCC bug 52023
+-   <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.  */
++   <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.
++   clang versions < 8.0.0 have the same bug.  */
+ #if (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 \
+-     || (defined __GNUC__ && __GNUC__ < 4 + (__GNUC_MINOR__ < 9)))
++     || (defined __GNUC__ && __GNUC__ < 4 + (__GNUC_MINOR__ < 9) \
++         && !defined __clang__) \
++     || (defined __clang__ && __clang_major__ < 8))
+ # ifdef __cplusplus
+ #  if 201103 <= __cplusplus
+ #   define _Alignof(type) alignof (type)
+-- 
+2.39.0
+

meta/recipes-extended/cpio/cpio_2.13.bb

@@ -11,6 +11,7 @@ SRC_URI = "${GNU_MIRROR}/cpio/cpio-${PV}.tar.gz \
            file://0002-src-global.c-Remove-superfluous-declaration-of-progr.patch \
            file://0001-obstack-Fix-a-clang-warning.patch \
            file://CVE-2021-38185.patch \
+           file://0001-Use-__alignof__-with-clang.patch \
            "
 
 SRC_URI[md5sum] = "389c5452d667c23b5eceb206f5000810"