--- eclass/kde.eclass	2006-05-07 20:35:22.000000000 +0200
+++ eclass/kde.eclass	2006-05-13 12:15:24.000000000 +0200
@@ -10,7 +10,11 @@
 inherit base eutils kde-functions flag-o-matic libtool
 DESCRIPTION="Based on the $ECLASS eclass"
 HOMEPAGE="http://www.kde.org/"
-IUSE="debug arts xinerama"
+IUSE="debug xinerama"
+
+if [[ ${ARTS_IS_OPTIONAL} != "no" ]]; then
+	IUSE="${IUSE} arts"
+fi
 
 if [[ ${CATEGORY} == "kde-base" ]]; then
 	IUSE="${IUSE} kdeenablefinal"
@@ -41,13 +45,15 @@
 
 kde_pkg_setup() {
 	if [ "${PN}" != "arts" ] && [ "${PN}" != "kdelibs" ] ; then
-		use arts && if ! built_with_use kde-base/kdelibs arts ; then
-			eerror "You are trying to compile ${CATEGORY}/${P} with the \"arts\" USE flag enabled."
-			eerror "However, $(best_version kde-base/kdelibs) was compiled with this flag disabled."
-			eerror
-			eerror "You must either disable this use flag, or recompile"
-			eerror "$(best_version kde-base/kdelibs) with this use flag enabled."
-			die
+		if [ ${ARTS_IS_OPTIONAL} == 'no' ] || use arts ; then
+			if ! built_with_use kde-base/kdelibs arts ; then
+				eerror "You are trying to compile ${CATEGORY}/${P} with the \"arts\" USE flag enabled."
+				eerror "However, $(best_version kde-base/kdelibs) was compiled with this flag disabled."
+				eerror
+				eerror "You must either disable this use flag, or recompile"
+				eerror "$(best_version kde-base/kdelibs) with this use flag enabled."
+				die
+			fi
 		fi
 	fi
 
@@ -155,8 +161,12 @@
 				if hasq kdeenablefinal ${IUSE}; then
 					myconf="$myconf $(use_enable kdeenablefinal final)"
 				fi
-				[[ -z "$KDEBASE" ]] && myconf="$myconf $(use_with arts)"
-				[[ -n "$KDEBASE" && "$KDEMINORVER" -ge 3 ]] && myconf="$myconf $(use_with arts)"
+				if [[ ${ARTS_IS_OPTIONAL} == 'no' ]]; then
+					myconf="$myconf --with-alsa"
+				else
+					[[ -z "$KDEBASE" ]] && myconf="$myconf $(use_with arts)"
+					[[ -n "$KDEBASE" && "$KDEMINORVER" -ge 3 ]] && myconf="$myconf $(use_with arts)"
+				fi
 				debug-print "$FUNCNAME: myconf: set to ${myconf}"
 				;;
 			configure)