--- xf86-video-virtualbox-4.1.10.old    2012-04-02 13:40:20.000000000 +0000
+++ xf86-video-virtualbox-4.1.10.new    2012-04-02 13:41:02.000000000 +0000
@@ -94,6 +94,7 @@
                --disable-sdl-ttf \
                --disable-pulse \
                --disable-alsa \
+               --target-arch=${ARCH} \
                --build-headless || die "configure failed"
                source ./env.sh
 }