diff --git a/backport-fix-building-against-gcc-10.patch b/backport-fix-building-against-gcc-10.patch
new file mode 100644
index 0000000..4cbaef8
--- /dev/null
+++ b/backport-fix-building-against-gcc-10.patch
@@ -0,0 +1,85 @@
+From e48d079f0386c6630d107897e689ea6c4511479f Mon Sep 17 00:00:00 2001
+From: Thomas Deutschmann <whissi@gentoo.org>
+Date: Thu, 20 Aug 2020 19:34:45 +0200
+Subject: sys-fs/jfsutils: fix building against gcc-10
+
+Closes: https://bugs.gentoo.org/707314
+Signed-off-by: Thomas Deutschmann <whissi@gentoo.org>
+---
+ fscklog/display.c |  2 +-
+ libfs/logredo.c   | 21 +++++++++++----------
+ 2 files changed, 12 insertions(+), 11 deletions(-)
+
+diff --git a/fscklog/display.c b/fscklog/display.c
+index a33d44f..dadd07f 100644
+--- a/fscklog/display.c
++++ b/fscklog/display.c
+@@ -54,7 +54,7 @@ FILE *infp;
+  * output: fsck extracted service log I/O buffer
+  *
+  */
+-char xchklog_buffer[XCHKLOG_BUFSIZE];
++static char xchklog_buffer[XCHKLOG_BUFSIZE];
+ 
+ /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+  *
+diff --git a/libfs/logredo.c b/libfs/logredo.c
+index eb897e8..d6204b7 100644
+--- a/libfs/logredo.c
++++ b/libfs/logredo.c
+@@ -87,9 +87,9 @@ int32_t bmap_stg_bytes = 0;
+  *    S T U F F    F O R    T H E    L O G
+  *
+  */
+-struct logsuper logsup;		/* log super block */
+-int32_t numdoblk;		/* number of do blocks used     */
+-int32_t numnodofile;		/* number of nodo file blocks used  */
++static struct logsuper logsup;		/* log super block */
++static int32_t numdoblk;		/* number of do blocks used     */
++static int32_t numnodofile;		/* number of nodo file blocks used  */
+ int32_t numExtDtPg = 0;		/* number of extended dtpage blocks used  */
+ 
+ /*
+@@ -129,7 +129,7 @@ int32_t use_2ndary_agg_superblock;
+  */
+ 
+ /* buffer header table */
+-struct bufhdr {
++static struct bufhdr {
+ 	int16_t next;		/* 2: next on free/lru list */
+ 	int16_t prev;		/* 2: previous on free/lru list */
+ 	int16_t hnext;		/* 2: next on hash chain */
+@@ -142,7 +142,7 @@ struct bufhdr {
+ } bufhdr[NBUFPOOL];		/* (24) */
+ 
+ /* buffer table */
+-struct bufpool {
++static struct bufpool {
+ 	char bytes[PSIZE];
+ } buffer[NBUFPOOL - 1];
+ 
+@@ -151,15 +151,16 @@ struct bufpool {
+  *
+  * log has its own 4 page buffer pool.
+  */
+-uint8_t afterdata[LOGPSIZE * 2];	/* buffer to read in redopage data */
++static uint8_t afterdata[LOGPSIZE * 2];	/* buffer to read in redopage data */
+ 
+ /*
+  * Miscellaneous
+  */
+-caddr_t prog;			/* Program name */
+-int32_t mntcnt, bufsize;
+-char *mntinfo;
+-int32_t retcode;		/* return code from logredo    */
++static caddr_t prog;			/* Program name */
++static int32_t mntcnt;
++static int32_t bufsize;
++static char *mntinfo;
++static int32_t retcode;		/* return code from logredo    */
+ int end_of_transaction = 0;
+ 
+ /*
+-- 
+1.8.3.1
+
diff --git a/jfsutils.spec b/jfsutils.spec
index dc10035..23332a3 100644
--- a/jfsutils.spec
+++ b/jfsutils.spec
@@ -1,12 +1,13 @@
 Name:          jfsutils
 Version:       1.1.15
-Release:       15
+Release:       16
 Summary:       Administration and debugging tools for the JFS filesystem
 License:       GPLv3
 URL:           http://jfs.sourceforge.net/
 Source0:       http://jfs.sourceforge.net/project/pub/jfsutils-1.1.15.tar.gz
 Patch0001:     jfsutils-1.1.15-linux-headers.patch
 Patch0002:     jfsutils_sysmacros.patch
+Patch6000:     backport-fix-building-against-gcc-10.patch
 Patch9000:     jfsutils-reslove-build-error.patch
 Buildrequires: libuuid-devel git gdb gcc
 
@@ -40,6 +41,12 @@ rm -rf $RPM_BUILD_ROOT
 %license COPYING
 
 %changelog
+* Sat Jul 31 2021 shixuantong<shixuantong@huawei.com> - 1.1.15-16
+- Type:bugfix
+- CVE:NA
+- SUG:NA
+- DESC:fix building against gcc-10
+
 * Wed Jun 23 2021 yuanxin<yuanxin24@huawei.com> - 1.1.15-15
 - Type:bugfix
 - CVE:NA