--- ebuild.sh.orig	2006-05-28 00:52:31.000000000 +0900
+++ ebuild.sh	2006-05-28 01:01:10.000000000 +0900
@@ -1489,6 +1489,15 @@
 RDEPEND="$RDEPEND $E_RDEPEND"
 PDEPEND="$PDEPEND $E_PDEPEND"
 
+#update IUSE with USE_EXPAND variables
+for myvar in ${USE_EXPAND}; do
+	myvar_opts="IUSE_${myvar}"
+	myvar_prefix="$(echo ${myvar} | awk '{print tolower($0)}')_"
+	for myvar_opt in ${!myvar_opts}; do
+		IUSE="${IUSE} ${myvar_prefix}${myvar_opt}"
+	done
+done
+
 unset E_IUSE E_DEPEND E_RDEPEND E_PDEPEND
 
 if [ "${EBUILD_PHASE}" != "depend" ]; then