diff --git a/configure.ac b/configure.ac
index 4338dc551..0479fd5a1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -139,7 +139,8 @@ AC_CHECK_HEADERS([fcntl.h stdlib.h string.h unistd.h dlfcn.h stropts.h \
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 AC_C_TYPEOF
-AC_C_BIGENDIAN([ENDIAN="X_BIG_ENDIAN"], [ENDIAN="X_LITTLE_ENDIAN"])
+AC_C_BIGENDIAN(AC_DEFINE(X_BYTE_ORDER, X_BIG_ENDIAN, [byte order]),
+               AC_DEFINE(X_BYTE_ORDER, X_LITTLE_ENDIAN, [byte order]))
 
 AC_CHECK_SIZEOF([unsigned long])
 if test "$ac_cv_sizeof_unsigned_long" = 8; then
diff --git a/include/dix-config.h.in b/include/dix-config.h.in
index f980a3d37..2203f82b4 100644
--- a/include/dix-config.h.in
+++ b/include/dix-config.h.in
@@ -493,4 +493,7 @@
 /* Build glamor's GBM-based EGL support */
 #undef GLAMOR_HAS_GBM
 
+/* byte order */
+#undef X_BYTE_ORDER
+
 #endif /* _DIX_CONFIG_H_ */
diff --git a/include/servermd.h b/include/servermd.h
index dd1da7d4a..0132d67bf 100644
--- a/include/servermd.h
+++ b/include/servermd.h
@@ -47,195 +47,18 @@ SOFTWARE.
 #ifndef SERVERMD_H
 #define SERVERMD_H 1
 
-/*
- * Note: much of this is vestigial from mfb/cfb times.  This should
- * really be simplified even further.
- */
-
-#ifdef __avr32__
-
-#define IMAGE_BYTE_ORDER        MSBFirst
-#define BITMAP_BIT_ORDER        MSBFirst
-
-#endif                          /* __avr32__ */
-
-#ifdef __arm32__
+#include "dix-config.h"
 
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
 #define IMAGE_BYTE_ORDER        LSBFirst
 #define BITMAP_BIT_ORDER        LSBFirst
-
-#endif                          /* __arm32__ */
-
-#if defined(__nds32__)
-
-#define IMAGE_BYTE_ORDER	LSBFirst
-
-#endif                          /* __nds32__ */
-
-#if defined __hppa__
-
-#define IMAGE_BYTE_ORDER	MSBFirst
-#define BITMAP_BIT_ORDER	MSBFirst
-#endif                          /* hpux || __hppa__ */
-
-#if defined(__powerpc__) || defined(__ppc__) || defined(__ppc64__)
-
-#if defined(__LITTLE_ENDIAN__)
-#define IMAGE_BYTE_ORDER      LSBFirst
-#define BITMAP_BIT_ORDER      LSBFirst
-#else
-#define IMAGE_BYTE_ORDER      MSBFirst
-#define BITMAP_BIT_ORDER      MSBFirst
-#endif
-
-#endif                          /* PowerPC */
-
-#if defined(__sh__)
-
-#if defined(__BIG_ENDIAN__)
-#define IMAGE_BYTE_ORDER	MSBFirst
-#define BITMAP_BIT_ORDER	MSBFirst
-#else
-#define IMAGE_BYTE_ORDER	LSBFirst
-#define BITMAP_BIT_ORDER	LSBFirst
-#endif
-
-#endif                          /* SuperH */
-
-#if defined(__m32r__)
-
-#if defined(__BIG_ENDIAN__)
-#define IMAGE_BYTE_ORDER      MSBFirst
-#define BITMAP_BIT_ORDER      MSBFirst
-#else
-#define IMAGE_BYTE_ORDER      LSBFirst
-#define BITMAP_BIT_ORDER      LSBFirst
-#endif
-
-#endif                          /* __m32r__ */
-
-#if defined(sun386) || defined(sun5)
-#define IMAGE_BYTE_ORDER	LSBFirst        /* Values for the SUN only */
-#define BITMAP_BIT_ORDER	LSBFirst
-#else
-#define IMAGE_BYTE_ORDER	MSBFirst        /* Values for the SUN only */
-#define BITMAP_BIT_ORDER	MSBFirst
-#endif
-
-#if (defined(mips) || defined(__mips))
-
-#if defined(MIPSEL) || defined(__MIPSEL__)
-#define IMAGE_BYTE_ORDER	LSBFirst        /* Values for the PMAX only */
-#define BITMAP_BIT_ORDER	LSBFirst
-#else
-#define IMAGE_BYTE_ORDER	MSBFirst        /* Values for the MIPS only */
-#define BITMAP_BIT_ORDER	MSBFirst
-#endif
-
-#endif                          /* mips */
-
-#if defined(__alpha) || defined(__alpha__)
-#define IMAGE_BYTE_ORDER	LSBFirst        /* Values for the Alpha only */
-#define BITMAP_BIT_ORDER       LSBFirst
-#endif                          /* alpha */
-
-#if defined (linux) && defined (__s390__)
-
-#define IMAGE_BYTE_ORDER      	MSBFirst
-#define BITMAP_BIT_ORDER      	MSBFirst
-
-#endif                          /* linux/s390 */
-
-#if defined (linux) && defined (__s390x__)
-
-#define IMAGE_BYTE_ORDER       MSBFirst
-#define BITMAP_BIT_ORDER       MSBFirst
-
-#endif                          /* linux/s390x */
-
-#if defined(__ia64__) || defined(ia64)
-
-#define IMAGE_BYTE_ORDER	LSBFirst
-#define BITMAP_BIT_ORDER       LSBFirst
-
-#endif                          /* ia64 */
-
-#if defined(__amd64__) || defined(amd64) || defined(__amd64)
-#define IMAGE_BYTE_ORDER	LSBFirst
-#define BITMAP_BIT_ORDER       LSBFirst
-#endif                          /* AMD64 */
-
-#if	defined(SVR4) && (defined(__i386__) || defined(__i386) ) ||	\
-	defined(__alpha__) || defined(__alpha) || \
-	defined(__i386__)
-
-#ifndef IMAGE_BYTE_ORDER
-#define IMAGE_BYTE_ORDER	LSBFirst
-#endif
-
-#ifndef BITMAP_BIT_ORDER
-#define BITMAP_BIT_ORDER      LSBFirst
-#endif
-
-#endif                          /* SVR4 / BSD / i386 */
-
-#if defined (linux) && defined (__mc68000__)
-
-#define IMAGE_BYTE_ORDER       MSBFirst
-#define BITMAP_BIT_ORDER       MSBFirst
-
-#endif                          /* linux/m68k */
-
-/* linux on ARM */
-#if defined(linux) && defined(__arm__)
-#define IMAGE_BYTE_ORDER	LSBFirst
-#define BITMAP_BIT_ORDER	LSBFirst
-#endif
-
-/* linux on IBM S/390 */
-#if defined (linux) && defined (__s390__)
-#define IMAGE_BYTE_ORDER	MSBFirst
-#define BITMAP_BIT_ORDER	MSBFirst
-#endif                          /* linux/s390 */
-
-#ifdef __aarch64__
-
-#ifdef __AARCH64EL__
-#define IMAGE_BYTE_ORDER        LSBFirst
-#define BITMAP_BIT_ORDER        LSBFirst
-#endif
-#ifdef __AARCH64EB__
+#elif X_BYTE_ORDER == X_BIG_ENDIAN
 #define IMAGE_BYTE_ORDER        MSBFirst
 #define BITMAP_BIT_ORDER        MSBFirst
-#endif
-
-#endif                          /* __aarch64__ */
-
-#if defined(__arc__)
-
-#if defined(__BIG_ENDIAN__)
-#define IMAGE_BYTE_ORDER	MSBFirst
-#define BITMAP_BIT_ORDER	MSBFirst
 #else
-#define IMAGE_BYTE_ORDER	LSBFirst
-#define BITMAP_BIT_ORDER	LSBFirst
+#error "Too weird to live."
 #endif
 
-#endif                          /* ARC */
-
-#ifdef __xtensa__
-
-#ifdef __XTENSA_EL__
-#define IMAGE_BYTE_ORDER        LSBFirst
-#define BITMAP_BIT_ORDER        LSBFirst
-#endif
-#ifdef __XTENSA_EB__
-#define IMAGE_BYTE_ORDER        MSBFirst
-#define BITMAP_BIT_ORDER        MSBFirst
-#endif
-
-#endif                          /* __xtensa__ */
-
 #ifndef GLYPHPADBYTES
 #define GLYPHPADBYTES           4
 #endif