--- sane-backends-1.0.23.ebuild.old	2013-02-04 10:02:45.000000000 +0100
+++ sane-backends-1.0.23.ebuild	2013-02-04 10:23:45.000000000 +0100
@@ -96,18 +96,11 @@
 
 IUSE="avahi doc gphoto2 ipv6 threads usb v4l xinetd"
 
-mySign=""
-
 for backend in ${IUSE_SANE_BACKENDS}; do
 	if [ ${backend} = pnm ]; then
 		IUSE="${IUSE} -sane_backends_pnm"
 	elif [ ${backend} = mustek_usb2 -o ${backend} = kvs40xx ]; then
-		if use threads; then
-			mySign="+"
-		else
-			mySign="-"
-		fi
-		IUSE="${IUSE} ${mySign}sane_backends_${backend}"
+		IUSE="${IUSE} sane_backends_${backend}"
 	else
 		IUSE="${IUSE} +sane_backends_${backend}"
 	fi