diff -Narup memtest86+-5.01-orig/controller.c memtest86+-5.01/controller.c
--- memtest86+-5.01-orig/controller.c	2013-08-09 22:01:58.000000000 -0400
+++ memtest86+-5.01/controller.c	2014-06-22 11:01:17.347923472 -0400
@@ -292,7 +292,7 @@ static void setup_nhm(void)
 
 	/* First, locate the PCI bus where the MCH is located */
 
-	for(i = 0; i < sizeof(possible_nhm_bus); i++) {
+	for(i = 0; i < sizeof(possible_nhm_bus) / sizeof(possible_nhm_bus[0]); i++) {
 		pci_conf_read( possible_nhm_bus[i], 3, 4, 0x00, 2, &vid);
 		pci_conf_read( possible_nhm_bus[i], 3, 4, 0x02, 2, &did);
 		vid &= 0xFFFF;
@@ -327,7 +327,7 @@ static void setup_nhm32(void)
 	ctrl.mode = ECC_NONE;
 
 	/* First, locate the PCI bus where the MCH is located */
-	for(i = 0; i < sizeof(possible_nhm_bus); i++) {
+	for(i = 0; i < sizeof(possible_nhm_bus) / sizeof(possible_nhm_bus[0]); i++) {
 		pci_conf_read( possible_nhm_bus[i], 3, 4, 0x00, 2, &vid);
 		pci_conf_read( possible_nhm_bus[i], 3, 4, 0x02, 2, &did);
 		vid &= 0xFFFF;
diff -Narup memtest86+-5.01-orig/io.h memtest86+-5.01/io.h
--- memtest86+-5.01-orig/io.h	2013-08-09 22:01:58.000000000 -0400
+++ memtest86+-5.01/io.h	2014-06-22 11:00:19.279251873 -0400
@@ -31,7 +31,7 @@
  */
 
 #define __OUT1(s,x) \
-extern inline void __out##s(unsigned x value, unsigned short port) {
+static inline void __out##s(unsigned x value, unsigned short port) {
 
 #define __OUT2(s,s1,s2) \
 __asm__ __volatile__ ("out" #s " %" s1 "0,%" s2 "1"
@@ -43,7 +43,7 @@ __OUT1(s##_p,x) __OUT2(s,s1,"w") : : "a"
 __OUT1(s##c_p,x) __OUT2(s,s1,"") : : "a" (value), "id" (port)); SLOW_DOWN_IO; }
 
 #define __IN1(s) \
-extern inline RETURN_TYPE __in##s(unsigned short port) { RETURN_TYPE _v;
+static inline RETURN_TYPE __in##s(unsigned short port) { RETURN_TYPE _v;
 
 #define __IN2(s,s1,s2) \
 __asm__ __volatile__ ("in" #s " %" s2 "1,%" s1 "0"
diff -Narup memtest86+-5.01-orig/Makefile memtest86+-5.01/Makefile
--- memtest86+-5.01-orig/Makefile	2013-08-09 22:01:58.000000000 -0400
+++ memtest86+-5.01/Makefile	2014-06-22 10:59:27.463573842 -0400
@@ -12,7 +12,7 @@ FDISK=/dev/fd0
 AS=as -32
 CC=gcc
 
-CFLAGS= -Wall -march=i486 -m32 -O1 -fomit-frame-pointer -fno-builtin \
+CFLAGS= -Wall -march=i486 -m32 -O0 -fomit-frame-pointer -fno-builtin \
 	-ffreestanding -fPIC $(SMP_FL) -fno-stack-protector 
 	
 OBJS= head.o reloc.o main.o test.o init.o lib.o patn.o screen_buffer.o \