--- configure.orig	2010-11-29 22:57:13.000000000 +0000
+++ configure	2010-12-16 16:38:32.000000000 +0000
@@ -19795,7 +19795,7 @@
 $as_echo "#define ENABLE_YARR_JIT 1" >>confdefs.h
 
         ;;
-        i*86|x86_64)
+        i*86|x86_64|amd64)
 
 $as_echo "#define ENABLE_JIT 1" >>confdefs.h
 
@@ -19820,7 +19820,7 @@
 $as_echo "#define WTF_USE_JIT_STUB_ARGUMENT_VA_LIST 1" >>confdefs.h
 
                 ;;
-                x86_64)
+                x86_64|amd64)
 
 $as_echo "#define WTF_USE_JIT_STUB_ARGUMENT_REGISTER 1" >>confdefs.h