--- gtk+-2.12.10-r1.ebuild.orig	2008-09-03 11:57:40.000000000 +0200
+++ gtk+-2.12.10-r1.ebuild	2008-09-03 11:59:27.000000000 +0200
@@ -171,5 +171,7 @@
 		elog "emerge -va1 \$(qfile -qC /usr/lib/gtk-2.0/2.[^1]*)"
 	fi
 
-	elog "Please install app-text/evince for print preview functionality"
+	if ! has_version app-text/evince ; then
+		elog "Please install app-text/evince for print preview functionality"
+	fi
 }