--- virtualbox-bin-1.3.8-r1.ebuild.orig	2007-04-21 13:35:30.000000000 +0200
+++ virtualbox-bin-1.3.8-r1.ebuild	2007-05-08 12:46:04.000000000 +0200
@@ -45,6 +45,14 @@
 RESTRICT="primaryuri"
 
 pkg_setup() {
+	# The VBoxSDL frontend needs media-libs/libsdl compiled
+	# with USE flag X enabled (bug #177335)
+	if ! built_with_use media-libs/libsdl X; then
+		eerror "media-libs/libsdl was compiled without the \"X\" USE flag enabled."
+		eerror "Please re-emerge media-libs/libsdl with USE=\"X\"."
+		die "media-libs/libsdl should be compiled with the \"X\" USE flag."
+	fi
+
 	check_license
 }