--- musique.pro.orig	2014-12-20 16:53:33.223472957 -0200
+++ musique.pro	2014-12-20 16:54:11.078284602 -0200
@@ -16,7 +16,8 @@
 TARGET = $${APP_UNIX_NAME}
 
 QT += network xml sql
-include(src/qtsingleapplication/qtsingleapplication.pri)
+#include(src/qtsingleapplication/qtsingleapplication.pri)
+CONFIG += qtsingleapplication
 
 HEADERS += src/mainwindow.h \
     src/aboutview.h \