diff --git a/YACReader.pro b/YACReader.pro
index bfc8dc47..5286ce81 100644
--- a/YACReader.pro
+++ b/YACReader.pro
@@ -1,3 +1,22 @@
 TEMPLATE = subdirs
 SUBDIRS = YACReader YACReaderLibrary
 YACReaderLibrary.depends = YACReader
+
+#check Qt version
+QT_VERSION = $$[QT_VERSION]
+QT_VERSION = $$split(QT_VERSION, ".")
+QT_VER_MAJ = $$member(QT_VERSION, 0)
+QT_VER_MIN = $$member(QT_VERSION, 1)
+
+lessThan(QT_VER_MAJ, 5) {
+error(YACReader requires Qt 5 or newer but Qt $$[QT_VERSION] was detected.)
+	}
+lessThan(QT_VER_MIN, 4)	{
+	CONFIG += legacy_gl_widget
+	message ("Qt < 5.4 detected. Using QGLWidget for coverflow.")
+	}
+	
+unix
+	{
+	CONFIG+=unarr
+	}
\ No newline at end of file