Index: memtest86+-5.31b/Makefile
===================================================================
--- memtest86+-5.31b.orig/Makefile
+++ memtest86+-5.31b/Makefile
@@ -13,7 +13,7 @@ TARGETDIR=/boot
 AS=as -32
 CC=gcc
 
-CFLAGS= -Wall -Werror -march=i486 -m32 -O1 -fomit-frame-pointer -fno-builtin \
+CFLAGS= -Wall -Werror -march=i486 -m32 -O0 -fomit-frame-pointer -fno-builtin \
  -ffreestanding -fPIC $(SMP_FL) -fno-stack-protector
 
 SELF_TEST_CFLAGS = -Wall -Werror -march=i486 -m32 -O1 -g