cpio: add patch to fix issues with gcc 10

gcc 10 introduced "-fno-common" as default. Therefore backport the
according cpio patch to fix this issue.

(From OE-Core rev: ca6e5511b59b585de793ff6424c7c6ccfcd8e61e)

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/cpio/cpio-2.13/0002-src-global.c-Remove-superfluous-declaration-of-progr.patch

@@ -0,0 +1,28 @@
+From 33e6cb5a28fab3d99bd6818f8c01e6f33805390f Mon Sep 17 00:00:00 2001
+From: Sergey Poznyakoff <gray@gnu.org>
+Date: Mon, 20 Jan 2020 07:45:39 +0200
+Subject: [PATCH] src/global.c: Remove superfluous declaration of program_name
+
+Upstream-Status: Accepted (commit 641d3f4)
+Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
+---
+ src/global.c | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/src/global.c b/src/global.c
+index fb3abe9..acf92bc 100644
+--- a/src/global.c
++++ b/src/global.c
+@@ -184,9 +184,6 @@ unsigned int warn_option = 0;
+ /* Extract to standard output? */
+ bool to_stdout_option = false;
+ 
+-/* The name this program was run with.  */
+-char *program_name;
+-
+ /* A pointer to either lstat or stat, depending on whether
+    dereferencing of symlinks is done for input files.  */
+ int (*xstat) ();
+-- 
+2.26.2
+

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

@@ -8,6 +8,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=f27defe1e96c2e1ecd4e0c9be8967949"
 
 SRC_URI = "${GNU_MIRROR}/cpio/cpio-${PV}.tar.gz \
            file://0001-Unset-need_charset_alias-when-building-for-musl.patch \
+           file://0002-src-global.c-Remove-superfluous-declaration-of-progr.patch \
            "
 
 SRC_URI[md5sum] = "389c5452d667c23b5eceb206f5000810"