From: Nathan Phillip Brink <binki@gentoo.org>
Subject: Do not ignore the --host argument passed to the fake ./configure.

--- a/configure
+++ b/configure
@@ -10,6 +10,7 @@
     -version | --version | --versio | --versi | --vers)
       quick_fwd=yes
       break ;;
+    --host=*)
+      rev=$(expr "${arg}" : '[^=]*=\(.*\)')
+      ;;
-    *)
-      break ;;
   esac
@@ -18,8 +21,10 @@
 then
   support/configure $*
 else
-  echo "retrieving the system name, type and OS release..."
-  rev=`support/config.guess`
+  if ! test "${rev}"; then
+    echo "retrieving the system name, type and OS release..."
+    rev=`support/config.guess`
+  fi
   if test "${rev}" 		# test for no output
   then
     echo "  your system seems to be ${rev}."