--- a/src/macros.h	Sat Jan 06 17:57:03 2018 +0200
+++ b/src/macros.h	Wed Jan 10 22:54:09 2018 +0200
@@ -49,10 +49,6 @@
 	inline T operator++(T& a, int) { T result = a; a = (T)((int) a + 1); return result; } \
 	inline T operator--(T& a, int) { T result = a; a = (T)((int) a - 1); return result; }
 
-#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
-# define USE_QT5
-#endif
-
 #define FOR_ENUM_NAME_HELPER(LINE) enum_iterator_ ## LINE
 #define FOR_ENUM_NAME(LINE) FOR_ENUM_NAME_HELPER(LINE)