diff --git a/1001-checkpolicy-remove-unused-te_assertions.patch b/1001-checkpolicy-remove-unused-te_assertions.patch
new file mode 100644
index 0000000000000000000000000000000000000000..01b567da81ebcf24be6ef9ec3c70d2ebbff06686
--- /dev/null
+++ b/1001-checkpolicy-remove-unused-te_assertions.patch
@@ -0,0 +1,42 @@
+From 95d8f16ece96829109eb75a605b1459a25b5a6be Mon Sep 17 00:00:00 2001
+From: Ondrej Mosnacek <omosnace@redhat.com>
+Date: Thu, 23 Jan 2020 13:57:15 +0100
+Subject: [PATCH] checkpolicy: remove unused te_assertions
+
+This variable is declared in a header file, but never defined or used.
+The te_assert structure definition is only used in this declaration, so
+remove both.
+
+Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
+---
+ checkpolicy.h | 14 --------------
+ 1 file changed, 14 deletions(-)
+
+diff --git a/checkpolicy.h b/checkpolicy.h
+index 3868f1fa023b..f127687e72a6 100644
+--- a/checkpolicy.h
++++ b/checkpolicy.h
+@@ -1,20 +1,6 @@
+ #ifndef _CHECKPOLICY_H_
+ #define _CHECKPOLICY_H_
+ 
+-#include <sepol/policydb/ebitmap.h>
+-
+-typedef struct te_assert {
+-	ebitmap_t stypes;
+-	ebitmap_t ttypes;
+-	ebitmap_t tclasses;
+-	int self;
+-	sepol_access_vector_t *avp;
+-	unsigned long line;
+-	struct te_assert *next;
+-} te_assert_t;
+-
+-te_assert_t *te_assertions;
+-
+ extern unsigned int policyvers;
+ 
+ #endif
+-- 
+2.24.1
+
diff --git a/checkpolicy.spec b/checkpolicy.spec
index ddee7849087c005d7e5857fe472193d0faa3528c..92b5165621c6be09f437641adc7fa78f0a35950a 100644
--- a/checkpolicy.spec
+++ b/checkpolicy.spec
@@ -1,14 +1,20 @@
+%define anolis_release .0.1
 %define libselinuxver 2.9-1
 %define libsepolver 2.9-1
 
 Summary: SELinux policy compiler
 Name: checkpolicy
 Version: 2.9
-Release: 1%{?dist}
+Release: 1%{anolis_release}%{?dist}
 License: GPLv2
 Source: https://github.com/SELinuxProject/selinux/releases/download/20190315/checkpolicy-2.9.tar.gz
 # git format-patch 20190315 -- checkpolicy
 # i=1; for j in 00*patch; do printf "Patch%04d: %s\n" $i $j; i=$((i+1));done
+
+#Begin: Anolis customized patches
+Patch1001: 1001-checkpolicy-remove-unused-te_assertions.patch
+#End: Anolis customized patches
+
 Conflicts: selinux-policy-base < 3.13.1-138
 BuildRequires: gcc
 BuildRequires: byacc bison flex flex-static libsepol-static >= %{libsepolver} libselinux-devel  >= %{libselinuxver} 
@@ -56,6 +62,9 @@ install test/dispol ${RPM_BUILD_ROOT}%{_bindir}/sedispol
 %{_bindir}/sedispol
 
 %changelog
+* Thu Nov 18 2021 Weitao Zhou <zhouwt@linux.alibaba.com> 2.9-1.0.1
+- Use extern in header files when declaring global variables for compatible gcc10 build
+
 * Mon Mar 25 2019 Petr Lautrbach <plautrba@redhat.com> - 2.9-1
 - SELinux userspace 2.9 release