--- a/src/radialMap/sincos.h	2018-05-06 06:10:38.000000000 +0200
+++ b/src/radialMap/sincos.h	2018-05-06 06:10:38.000000000 +0200
@@ -21,10 +21,10 @@
 
 #ifndef SINCOS_H
 #define SINCOS_H
-
+#define _GNU_SOURCE
 #include <math.h>
 
-#if !defined(__GLIBC__) || (__GLIBC__ < 2) ||  (__GLIBC__ == 2 && __GLIBC_MINOR__ < 1)
+#if (__GLIBC__ < 2) ||  (__GLIBC__ == 2 && __GLIBC_MINOR__ < 1)
 
 #include <qmath.h>
 
--- a/src/radialMap/sincos.h	2018-05-25 01:30:46.775385798 +0200
+++ b/src/radialMap/sincos.h	2018-05-25 01:30:46.775385798 +0200
@@ -23,23 +23,4 @@
 #define SINCOS_H
 #define _GNU_SOURCE
 #include <math.h>
-
-#if (__GLIBC__ < 2) ||  (__GLIBC__ == 2 && __GLIBC_MINOR__ < 1)
-
-#include <qmath.h>
-
-void
-sincos(double angleRadians, double *Sin, double *Cos);
-
-#ifdef SINCOS_H_IMPLEMENTATION
-void
-sincos(double angleRadians, double *Sin, double *Cos)
-{
-    *Sin = qSin(angleRadians);
-    *Cos = qCos(angleRadians);
-}
-#endif
-
-#endif
-
 #endif