--- configure.orig	2008-03-04 22:23:23.000000000 +0100
+++ configure	2008-11-04 20:12:25.000000000 +0100
@@ -1466,7 +1466,7 @@
   x86_64|amd64)
     arch="x86_32"
     enable fast_unaligned
-    canon_arch="`$cc -dumpmachine | sed -e 's,\([^-]*\)-.*,\1,'`"
+    canon_arch="`$cxx -dumpmachine | sed -e 's,\([^-]*\)-.*,\1,'`"
     if [ x"$canon_arch" = x"x86_64" -o x"$canon_arch" = x"amd64" ]; then
       if [ -z "`echo $CFLAGS | grep -- -m32`"  ]; then
         arch="x86_64"
