diff -ru qsynth-0.4.0/configure qsynth-0.4.0-modified/configure
--- qsynth-0.4.0/configure	2015-09-07 16:59:25.083842955 +0200
+++ qsynth-0.4.0-modified/configure	2016-01-12 15:57:36.673008368 +0100
@@ -4159,6 +4159,7 @@
 
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#define QT_NO_VERSION_TAGGING
 #include "QtCore/qglobal.h"
 int
 main ()
