diff --git a/fix-multi-difine.patch b/fix-multi-difine.patch
new file mode 100644
index 0000000000000000000000000000000000000000..e64b46df3a3121d404ed3b7b238dcdb3669781a5
--- /dev/null
+++ b/fix-multi-difine.patch
@@ -0,0 +1,36 @@
+diff -urN memtester-4.3.0/tests.c memtester-4.3.0-bak/tests.c
+--- memtester-4.3.0/tests.c	2012-06-10 05:45:22.000000000 +0800
++++ memtester-4.3.0-bak/tests.c	2021-08-04 17:09:27.971110499 +0800
+@@ -27,6 +27,9 @@
+ #define PROGRESSOFTEN 2500
+ #define ONE 0x00000001L
+
++type_mword8 mword8;
++type_mword16 mword16;
++
+ /* Function definitions. */
+
+ int compare_regions(ulv *bufa, ulv *bufb, size_t count) {
+diff -urN memtester-4.3.0/types.h memtester-4.3.0-bak/types.h
+--- memtester-4.3.0/types.h	2012-06-10 05:45:22.000000000 +0800
++++ memtester-4.3.0-bak/types.h	2021-08-04 17:09:10.390965532 +0800
+@@ -25,12 +25,15 @@
+     int (*fp)();
+ };
+
+-union {
++typedef union {
+     unsigned char bytes[UL_LEN/8];
+     ul val;
+-} mword8;
++} type_mword8;
+
+-union {
++typedef union {
+     unsigned short u16s[UL_LEN/16];
+     ul val;
+-} mword16;
++} type_mword16;
++
++extern type_mword8 mword8;
++extern type_mword16 mword16;
diff --git a/memtester.spec b/memtester.spec
index 0812133593c088692ee273866412a92de504b3b7..6dbb3548aa2f9085494b7dd4a8ad5784cf610d6a 100644
--- a/memtester.spec
+++ b/memtester.spec
@@ -2,13 +2,14 @@
 
 Name:    memtester
 Version: 4.3.0
-Release: 1
+Release: 2
 Summary: A userspace utility for testing the memory subsystem for faults
 License: GPLv2
 URL:	 http://pyropus.ca/software/memtester/
 Source0: http://pyropus.ca/software/memtester/old-versions/%{name}-%{version}.tar.gz
 
 Patch0: memtester-fix-make-install-path.patch
+Patch1: fix-multi-difine.patch
 
 BuildRequires: 	gcc
 
@@ -18,6 +19,7 @@ A userspace utility for testing the memory subsystem for faults. It's portable a
 %prep
 %setup -q -n %{name}-%{version}/
 %patch0 -p1
+%patch1 -p1
 
 %build
 %make_build
@@ -39,6 +41,9 @@ make install DESTDIR="%{buildroot}"
 %{_mandir}/*
 
 %changelog
+* Wed Aug 4 2021 Lu Weitao <luweitao2@huawei.com>
+- fix compile failure by upgrade to GCC-10
+
 * Sun Mar 29 2020 Wei Xiong <myeuler@163.com>
 - Package init