--- Makefile.orig	Wed Aug  9 10:07:14 2006
+++ Makefile	Wed Aug  9 10:07:37 2006
@@ -18,7 +18,7 @@
 endif
 
 # MMX/SSE optims
-ifeq ($(ARCH),X86)
+ifeq ($(ARCH),i386)
 SRCS   += common/i386/mc-c.c common/i386/predict-c.c
 ASMSRC  = common/i386/dct-a.asm common/i386/cpu-a.asm \
           common/i386/pixel-a.asm common/i386/mc-a.asm \
@@ -30,7 +30,7 @@
 endif
 
 # MMX/SSE optims
-ifeq ($(ARCH),X86_64)
+ifeq ($(ARCH),amd64)
 SRCS   += common/i386/mc-c.c common/i386/predict-c.c
 ASMSRC  = common/amd64/dct-a.asm common/amd64/cpu-a.asm \
           common/amd64/pixel-a.asm common/amd64/mc-a.asm \
