diff --git a/fb/fb.h b/fb/fb.h
index 8e76bebfa..2c6c4fbef 100644
--- a/fb/fb.h
+++ b/fb/fb.h
@@ -138,7 +138,7 @@ typedef unsigned __int64    FbBits;
       defined(ia64) || defined(__ia64__) || \
       defined(__sparc64__) || defined(_LP64) || \
       defined(__s390x__) || \
-      defined(amd64) || defined (__amd64__) || defined(__x86_64__) || \
+      defined(amd64) || defined (__amd64__) \
       defined (__powerpc64__) || \
       (defined(sgi) && (_MIPS_SZLONG == 64))
 typedef unsigned long	    FbBits;
diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h
index 9e7f8219d..a20baa3e4 100644
--- a/hw/xfree86/common/compiler.h
+++ b/hw/xfree86/common/compiler.h
@@ -498,7 +498,7 @@ extern unsigned int inb(unsigned long port);
 extern unsigned int inw(unsigned long port);
 extern unsigned int inl(unsigned long port);
  
-#   elif defined(linux) && (defined(__amd64__) || defined(__x86_64__))
+#   elif defined(linux) && defined(__amd64__)
  
 #    include <inttypes.h>
 
diff --git a/hw/xfree86/common/xf86AutoConfig.c b/hw/xfree86/common/xf86AutoConfig.c
index 7e5fab412..a786eed3e 100644
--- a/hw/xfree86/common/xf86AutoConfig.c
+++ b/hw/xfree86/common/xf86AutoConfig.c
@@ -454,7 +454,7 @@ chooseVideoDriver(void)
 	if (info != NULL)
 	    chosen_driver = videoPtrToDriverName(info);
 	if (chosen_driver == NULL) {
-#if defined  __i386__ || defined __amd64__ || defined __x86_64__ || defined __hurd__
+#if defined  __i386__ || defined __amd64__ || defined __hurd__
 	    chosen_driver = "vesa";
 #elif defined __sparc__
 	    chosen_driver = "sunffb";
diff --git a/hw/xfree86/loader/loader.c b/hw/xfree86/loader/loader.c
index a00269b70..774a4c4a0 100644
--- a/hw/xfree86/loader/loader.c
+++ b/hw/xfree86/loader/loader.c
@@ -63,7 +63,7 @@
 #include <string.h>
 #if defined(linux) && \
     (defined(__alpha__) || defined(__powerpc__) || defined(__ia64__) \
-    || defined(__amd64__) || defined(__x86_64__))
+    || defined(__amd64__))
 #include <malloc.h>
 #endif
 #include <stdarg.h>
diff --git a/hw/xfree86/os-support/bsd/bsdResource.c b/hw/xfree86/os-support/bsd/bsdResource.c
index d1ee787f1..fe166c845 100644
--- a/hw/xfree86/os-support/bsd/bsdResource.c
+++ b/hw/xfree86/os-support/bsd/bsdResource.c
@@ -19,7 +19,7 @@
 
 #ifdef INCLUDE_XF86_NO_DOMAIN
 
-#if defined(__alpha__) || defined(__sparc64__) || defined(__amd64__) || defined(__x86_64__)
+#if defined(__alpha__) || defined(__sparc64__) || defined(__amd64__)
 
 resPtr
 xf86AccResFromOS(resPtr ret)
diff --git a/hw/xfree86/os-support/bus/Pci.h b/hw/xfree86/os-support/bus/Pci.h
index 557483b9b..a1390c073 100644
--- a/hw/xfree86/os-support/bus/Pci.h
+++ b/hw/xfree86/os-support/bus/Pci.h
@@ -202,7 +202,7 @@
 /*
  * Select architecture specific PCI init function
  */
-#if defined(__i386__) || defined(__i386) ||  defined(__amd64__) || defined(__amd64) || defined(__x86_64__)
+#if defined(__i386__) || defined(__i386) ||  defined(__amd64__) || defined(__amd64)
 # define ARCH_PCI_INIT ix86PciInit
 #elif defined(__powerpc__) || defined(__powerpc64__)
 # define ARCH_PCI_INIT ppcPciInit
diff --git a/hw/xfree86/os-support/misc/SlowBcopy.c b/hw/xfree86/os-support/misc/SlowBcopy.c
index 5cd716823..7c51fcca3 100644
--- a/hw/xfree86/os-support/misc/SlowBcopy.c
+++ b/hw/xfree86/os-support/misc/SlowBcopy.c
@@ -30,7 +30,7 @@ xf86SetReallySlowBcopy(void)
 	really_slow_bcopy = 1;
 }
 
-#if defined(__i386__) || defined(__x86_64__)
+#if defined(__i386__) || defined(__amd64__)
 static void xf86_really_slow_bcopy(unsigned char *src, unsigned char *dst, int len)
 {
     while(len--)
@@ -45,7 +45,7 @@ static void xf86_really_slow_bcopy(unsigned char *src, unsigned char *dst, int l
 _X_EXPORT void
 xf86SlowBcopy(unsigned char *src, unsigned char *dst, int len)
 {
-#if defined(__i386__) || defined(__x86_64__)
+#if defined(__i386__) || defined(__amd64__)
     if (really_slow_bcopy) {
 	xf86_really_slow_bcopy(src, dst, len);
 	return;
diff --git a/hw/xfree86/utils/xorgcfg/loadmod.c b/hw/xfree86/utils/xorgcfg/loadmod.c
index 629dfe118..748bd3a0b 100644
--- a/hw/xfree86/utils/xorgcfg/loadmod.c
+++ b/hw/xfree86/utils/xorgcfg/loadmod.c
@@ -181,7 +181,7 @@ LOOKUP xfree86LookupTab[] = {
    SYMFUNC(xf86memcpy)
 #if (defined(__powerpc__) && (defined(Lynx) || defined(linux))) || \
     defined(__sparc__) || defined(__sparc) || defined(__ia64__) || \
-    defined (__amd64__) || defined(__x86_64__)
+    defined (__amd64__)
    /*
     * Some PPC, SPARC, and IA64 compilers generate calls to memcpy to handle
     * structure copies.  This causes a problem both here and in shared
diff --git a/hw/xfree86/x86emu/prim_ops.c b/hw/xfree86/x86emu/prim_ops.c
index 41968e1a7..4a6ac5deb 100644
--- a/hw/xfree86/x86emu/prim_ops.c
+++ b/hw/xfree86/x86emu/prim_ops.c
@@ -103,7 +103,7 @@
 #include "x86emu/x86emui.h"
 
 #if defined(__GNUC__)
-# if defined (__i386__) || defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__) || defined(__x86_64__)
+# if defined (__i386__) || defined(__i386) || defined(__AMD64__) || defined(__amd64__)
 #  include "x86emu/prim_x86_gcc.h"
 # endif
 #endif
diff --git a/hw/xfree86/x86emu/x86emu/prim_x86_gcc.h b/hw/xfree86/x86emu/x86emu/prim_x86_gcc.h
index 5a443cdbf..5530a3ada 100644
--- a/hw/xfree86/x86emu/x86emu/prim_x86_gcc.h
+++ b/hw/xfree86/x86emu/x86emu/prim_x86_gcc.h
@@ -42,7 +42,7 @@
 
 #include "x86emu/types.h"
 
-#if !defined(__GNUC__) || !(defined (__i386__) || defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__) || defined(__x86_64__))
+#if !defined(__GNUC__) || !(defined (__i386__) || defined(__i386) || defined(__AMD64__) || defined(__amd64__))
 #error This file is intended to be used by gcc on i386 or x86-64 system
 #endif
 
diff --git a/hw/xfree86/x86emu/x86emu/types.h b/hw/xfree86/x86emu/x86emu/types.h
index 2d41b0f18..ff28885f1 100644
--- a/hw/xfree86/x86emu/x86emu/types.h
+++ b/hw/xfree86/x86emu/x86emu/types.h
@@ -75,7 +75,7 @@
     defined(__sparc64__) || \
     defined(__s390x__) || \
     (defined(__hppa__) && defined(__LP64)) || \
-    defined(__amd64__) || defined(amd64) || defined(__x86_64__) || \
+    defined(__amd64__) || defined(amd64) \
     (defined(__sgi) && (_MIPS_SZLONG == 64))
 #define NUM32 int
 #else
diff --git a/include/servermd.h b/include/servermd.h
index 91b705bb2..f10e6bce0 100644
--- a/include/servermd.h
+++ b/include/servermd.h
@@ -285,7 +285,7 @@ SOFTWARE.
 
 #endif /* ia64 */
 
-#if defined(__amd64__) || defined(amd64) || defined(__amd64) || defined(__x86_64__)
+#if defined(__amd64__) || defined(amd64) || defined(__amd64)
 # define IMAGE_BYTE_ORDER	LSBFirst
 
 # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
diff --git a/mi/micoord.h b/mi/micoord.h
index 876e88c95..16d086117 100644
--- a/mi/micoord.h
+++ b/mi/micoord.h
@@ -48,7 +48,7 @@
     defined(__alpha) || defined(__alpha__) || \
     defined(__i386__) || defined(__i386) || defined(__ia64__) || \
     defined(__s390x__) || defined(__s390__) || \
-    defined(__amd64__) || defined(amd64) || defined(__amd64) || defined(__x86_64__)
+    defined(__amd64__) || defined(amd64) || defined(__amd64)
 #define GetHighWord(x) (((int) (x)) >> 16)
 #else
 #define GetHighWord(x) (((int) (x)) / 65536)