diff --git a/fix-build-error-with-gcc-10.patch b/fix-build-error-with-gcc-10.patch
new file mode 100644
index 0000000..21316d3
--- /dev/null
+++ b/fix-build-error-with-gcc-10.patch
@@ -0,0 +1,28 @@
+From 486660deabfa33375df2c8f053d84d6128a1235f Mon Sep 17 00:00:00 2001
+From: Francesco Chemolli <kinkie@squid-cache.org>
+Date: Sat, 21 Mar 2020 22:18:43 +0000
+Subject: [PATCH] FtpGateway.cc: fix build on gcc-10 [-Werror=class-memaccess]
+ (#573)
+
+Since a1c06c7, tokens initialization is done by FtpLineToken
+constructor, and g++-10 complains about memsetting a nontrivial object:
+
+    clearing an object of non-trivial type [-Werror=class-memaccess]
+---
+ src/clients/FtpGateway.cc | 2 --
+ 1 file changed, 2 deletions(-)
+
+diff --git a/src/clients/FtpGateway.cc b/src/clients/FtpGateway.cc
+index 79de14d7889..c0350116727 100644
+--- a/src/clients/FtpGateway.cc
++++ b/src/clients/FtpGateway.cc
+@@ -563,8 +563,6 @@ ftpListParseParts(const char *buf, struct Ftp::GatewayFlags flags)
+ 
+     n_tokens = 0;
+ 
+-    memset(tokens, 0, sizeof(tokens));
+-
+     xbuf = xstrdup(buf);
+ 
+     if (flags.tried_nlst) {
+
diff --git a/squid.spec b/squid.spec
index 4637e12..fdffbaf 100644
--- a/squid.spec
+++ b/squid.spec
@@ -2,7 +2,7 @@
 
 Name:     squid
 Version:  4.9
-Release:  9
+Release:  10
 Summary:  The Squid proxy caching server
 Epoch:    7
 License:  GPLv2+ and (LGPLv2+ and MIT and BSD and Public Domain)
@@ -40,6 +40,7 @@ Patch19:backport-0002-CVE-2021-28652.patch
 Patch20:backport-CVE-2021-28662.patch
 Patch21:backport-CVE-2021-31806-CVE-2021-31808.patch
 Patch22:backport-CVE-2021-33620.patch
+Patch23:fix-build-error-with-gcc-10.patch
 
 Buildroot: %{_tmppath}/squid-4.9-1-root-%(%{__id_u} -n)
 Requires: bash >= 2.0
@@ -224,6 +225,12 @@ fi
     chgrp squid /var/cache/samba/winbindd_privileged >/dev/null 2>&1 || :
 
 %changelog
+* Fri Jul 30 2021 gaihuiying <gaihuiying1@huawei.com> - 4.9-10
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix build error with gcc 10
+
 * Wed Jun 30 2021 gaihuiying <gaihuiying1@huawei.com> - 4.9-9
 - Type:bugfix
 - ID:NA