diff --git a/backport-Fix-building-with-GCC-10.patch b/backport-Fix-building-with-GCC-10.patch
new file mode 100644
index 0000000000000000000000000000000000000000..5119fe3cbe86dfa73ae61cc5f411233001e962ae
--- /dev/null
+++ b/backport-Fix-building-with-GCC-10.patch
@@ -0,0 +1,96 @@
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <address@hidden>
+Date: Thu, 23 Jan 2020 15:42:41 +0100
+Subject: [PATCH 1/2] Fix building with GCC 10
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+GCC 10 defaults to -fno-common that results into errors on multiple
+global variable definitions:
+
+/usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld:
+shar-opts.o:(.data.rel.ro.local+0x0): multiple definition of
+`program_name'; shar.o:(.rodata+0x10): first defined here
+
+This patch fixes it by changing the definitions in header files into extern
+declarations.
+
+<https://lists.gnu.org/archive/html/bug-gnu-utils/2020-01/msg00001.html>
+
+Signed-off-by: Petr Písař <address@hidden>
+---
+ src/shar-opts.h     | 2 +-
+ src/shar-std.def    | 2 +-
+ src/unshar-opts.h   | 2 +-
+ src/uudecode-opts.h | 2 +-
+ src/uuencode-opts.h | 2 +-
+ 5 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/src/shar-opts.h b/src/shar-opts.h
+index 75dcae2..5055d1c 100644
+--- a/src/shar-opts.h
++++ b/src/shar-opts.h
+@@ -352,7 +352,7 @@ extern "C" {
+  *  global exported definitions
+  */
+ #include "local.h"
+-char const * const program_name;
++extern char const * const program_name;
+ 
+ extern bool initialization_done;
+ extern int optidx;
+diff --git a/src/shar-std.def b/src/shar-std.def
+index ed06b77..a28f61c 100644
+--- a/src/shar-std.def
++++ b/src/shar-std.def
+@@ -41,7 +41,7 @@ no-misuse-usage;
+ usage-message;
+ die-code;
+ 
+-export  = '#include "local.h"'"\nchar const * const program_name;";
++export  = '#include "local.h"'"\nextern char const * const program_name;";
+ 
+ #shell
+ echo "include = 'char const * const program_name = \"${progname}\";';"
+diff --git a/src/unshar-opts.h b/src/unshar-opts.h
+index 2c3febe..9ebe2fc 100644
+--- a/src/unshar-opts.h
++++ b/src/unshar-opts.h
+@@ -192,7 +192,7 @@ extern "C" {
+ extern size_t       separator_str_len;
+ 
+ #include "local.h"
+-char const * const program_name;
++extern char const * const program_name;
+ 
+ 
+ /* * * * * *
+diff --git a/src/uudecode-opts.h b/src/uudecode-opts.h
+index 29b3b5c..5494289 100644
+--- a/src/uudecode-opts.h
++++ b/src/uudecode-opts.h
+@@ -170,7 +170,7 @@ extern "C" {
+  *  global exported definitions
+  */
+ #include "local.h"
+-char const * const program_name;
++extern char const * const program_name;
+ 
+ 
+ /* * * * * *
+diff --git a/src/uuencode-opts.h b/src/uuencode-opts.h
+index e71c9b8..d6ec03e 100644
+--- a/src/uuencode-opts.h
++++ b/src/uuencode-opts.h
+@@ -166,7 +166,7 @@ extern "C" {
+  *  global exported definitions
+  */
+ #include "local.h"
+-char const * const program_name;
++extern char const * const program_name;
+ 
+ 
+ /* * * * * *
+-- 
+2.21.1
+
diff --git a/sharutils.spec b/sharutils.spec
index 051a17ce96bb8ceea8dfd61bf8feb6d342a694f4..629ad968ed17ca0b30e1176132c6c15ce7d2544b 100644
--- a/sharutils.spec
+++ b/sharutils.spec
@@ -1,6 +1,6 @@
 Name:       	sharutils
 Version:    	4.15.2
-Release:    	15
+Release:    	16
 Summary:    	The set of GNU shar utilities
 License:    	GPLv3+ and (GPLv3+ and BSD) and (LGPLv3+ or BSD) and LGPLv2+ and Public Domain and GFDL
 URL:        	http://www.gnu.org/software/%{name}/
@@ -10,6 +10,7 @@ Source1:	LicenseList
 Patch0:     	%{name}-4.14.2-Pass-compilation-with-Werror-format-security.patch
 Patch1:     	%{name}-4.15.2-Fix-a-heap-buffer-overflow-in-find_archive.patch
 Patch2:     	%{name}-4.15.2-fflush-adjust-to-glibc-2.28-libio.h-removal.patch
+Patch6000:      backport-Fix-building-with-GCC-10.patch
 
 BuildRequires:	binutils coreutils gcc gettext glibc-common make sed diffutils
 Provides:      	bundled(gnulib)
@@ -65,6 +66,9 @@ make check
 %{_mandir}/man*
 
 %changelog
+* Sat Jul 31 2021 shixuantong <shixuantong@huawei.com> - 4.15.2-16
+- Fix building with GCC 10
+
 * Sat Jan 11 2020 openEuler Buildteam <buildteam@openeuler.org> - 4.15.2-15
 - Package init