--- libechonest-2.3.0.ebuild	2015-01-30 01:10:39.000000000 +0300
+++ libechonest-2.3.1.ebuild	2015-03-14 15:12:45.000000000 +0300
@@ -14,6 +14,8 @@
 KEYWORDS="~amd64 ~x86"
 IUSE="+qt4 qt5"
 
+REQUIRED_USE="|| ( qt4 qt5 )"
+
 RESTRICT="test" # Networking required
 
 RDEPEND="