--- xaos-3.4.ebuild	2008-07-29 22:26:44.000000000 +0200
+++ xaos-3.4.ebuild	2008-07-29 22:26:33.000000000 +0200
@@ -27,9 +27,12 @@ 
 	svga? ( >=media-libs/svgalib-1.4.3 )
 	aalib? ( media-libs/aalib )
 	png? ( media-libs/libpng )
+	!x86? ( sci-libs/gsl )
 	sys-libs/zlib"
 # xaos has ggi support, but it doesn't build
 #	ggi?   ( media-libs/libggi )
+# GTK+ driver is experimental and not recommended for end users
+#	gtk? ( x11-libs/gtk+ dev-libs/glib )
 
 DEPEND="${RDEPEND}
 		X? (
@@ -39,7 +42,8 @@ 
 				x11-proto/xf86dgaproto
 				x11-proto/xproto
 				)
-			)"
+			)
+	x86? ( dev-lang/nasm )"
 
 src_compile() {
 	econf \
@@ -48,7 +52,9 @@ 
 		$(use_with svga svga-driver) \
 		$(use_with threads pthread) \
 		$(use_with X x11-driver) \
-		$(use_with X) \
+		$(use_with X x) \
+		$(use_with x86 i386asm) \
+		$(use_with !x86 gsl) \
 		$(use_enable nls) \
 		--with-sffe=yes --with-ggi-driver=no || die
 	emake || die