--- ./config.sub.orig	1998-04-26 17:20:59.000000000 +0400
+++ ./config.sub	2007-08-30 09:48:46.000000000 +0400
@@ -129,7 +129,7 @@
 case $basic_machine in
 	# Recognize the basic CPU types without company name.
 	# Some are omitted here because they have special meanings below.
-	tahoe | i[345]86 | i860 | m68k | m68000 | m88k | ns32k | arm \
+	tahoe | i[345]86 | x86_64 | i860 | m68k | m68000 | m88k | ns32k | arm \
 		| arme[lb] | pyramid \
 		| tron | a29k | 580 | i960 | h8300 | hppa1.0 | hppa1.1 \
 		| alpha | we32k | ns16k | clipper | sparclite | i370 | sh \
@@ -144,7 +144,7 @@
 		exit 1
 		;;
 	# Recognize the basic CPU types with company name.
-	vax-* | tahoe-* | i[345]86-* | i860-* | m68k-* | m68000-* | m88k-* \
+	vax-* | tahoe-* | i[345]86-* | x86_64-* | i860-* | m68k-* | m68000-* | m88k-* \
 	      | sparc-* | ns32k-* | fx80-* | arm-* | c[123]* \
 	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* | power-* \
 	      | none-* | 580-* | cray2-* | h8300-* | i960-* | xmp-* | ymp-* \