diff -urN lmbench3/src/disk.c lmbench3-bak/src/disk.c
--- lmbench3/src/disk.c	2005-08-23 08:19:54.000000000 +0800
+++ lmbench3-bak/src/disk.c	2020-05-03 12:33:37.837715349 +0800
@@ -289,9 +289,7 @@
 seekto(int fd, uint64 off)
 {
 #ifdef	__linux__
-	extern	loff_t llseek(int, loff_t, int);
-
-	if (llseek(fd, (loff_t)off, SEEK_SET) == (loff_t)-1) {
+	if (lseek(fd, (loff_t)off, SEEK_SET) == (loff_t)-1) {
 		return(-1);
 	}
 	return (0);
diff -urN lmbench3/src/Makefile lmbench3-bak/src/Makefile
--- lmbench3/src/Makefile	2005-08-23 08:19:54.000000000 +0800
+++ lmbench3-bak/src/Makefile	2020-05-03 12:33:32.148802834 +0800
@@ -228,7 +228,7 @@
 	install install-target dist get edit get-e clean clobber \
 	share depend testmake
 
-$O/lmbench : ../scripts/lmbench bk.ver
+$O/lmbench : ../scripts/lmbench 
 	rm -f $O/lmbench
 	sed -e "s/<version>/`cat bk.ver`/g" < ../scripts/lmbench > $O/lmbench
 	chmod +x $O/lmbench