diff --git a/src/libs/vmisc/vmath.h b/src/libs/vmisc/vmath.h
index 2cda433fe..82d109ad5 100644
--- a/src/libs/vmisc/vmath.h
+++ b/src/libs/vmisc/vmath.h
@@ -24,228 +24,7 @@
 #if QT_VERSION >= QT_VERSION_CHECK(5, 1, 0)
 #include <QtMath>
 #else
-
-#if 0
-#pragma qt_class(QtMath)
-#endif
-
-#include <math.h>
-
-#include <QtCore/qglobal.h>
-
-
-#define QT_SINE_TABLE_SIZE 256
-
-extern const qreal qt_sine_table[QT_SINE_TABLE_SIZE];
-
-inline int qCeil(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return int(ceilf(float(v)));
-    else
-#endif
-        return int(ceil(v));
-}
-
-inline int qFloor(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return int(floorf(float(v)));
-    else
-#endif
-        return int(floor(v));
-}
-
-inline qreal qFabs(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if(sizeof(qreal) == sizeof(float))
-        return fabsf(float(v));
-    else
-#endif
-        return fabs(v);
-}
-
-inline qreal qSin(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return sinf(float(v));
-    else
-#endif
-        return sin(v);
-}
-
-inline qreal qCos(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return cosf(float(v));
-    else
-#endif
-        return cos(v);
-}
-
-inline qreal qTan(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return tanf(float(v));
-    else
-#endif
-        return tan(v);
-}
-
-inline qreal qAcos(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return acosf(float(v));
-    else
-#endif
-       return acos(v);
-}
-
-inline qreal qAsin(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return asinf(float(v));
-    else
-#endif
-        return asin(v);
-}
-
-inline qreal qAtan(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return atanf(float(v));
-    else
-#endif
-        return atan(v);
-}
-
-inline qreal qAtan2(qreal y, qreal x)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return atan2f(float(y), float(x));
-    else
-#endif
-        return atan2(y, x);
-}
-
-inline qreal qSqrt(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return sqrtf(float(v));
-    else
-#endif
-        return sqrt(v);
-}
-
-inline qreal qLn(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return logf(float(v));
-    else
-#endif
-        return log(v);
-}
-
-inline qreal qExp(qreal v)
-{
-    // only one signature
-    // exists, exp(double)
-    return exp(v);
-}
-
-inline qreal qPow(qreal x, qreal y)
-{
-#ifdef QT_USE_MATH_H_FLOATS
-    if (sizeof(qreal) == sizeof(float))
-        return powf(float(x), float(y));
-    else
-#endif
-        return pow(x, y);
-}
-
-#ifndef M_E
-#define M_E (2.7182818284590452354)
-#endif
-
-#ifndef M_LOG2E
-#define M_LOG2E (1.4426950408889634074)
-#endif
-
-#ifndef M_LOG10E
-#define M_LOG10E (0.43429448190325182765)
-#endif
-
-#ifndef M_LN2
-#define M_LN2 (0.69314718055994530942)
-#endif
-
-#ifndef M_LN10
-#define M_LN10 (2.30258509299404568402)
-#endif
-
-#ifndef M_PI
-#define M_PI (3.14159265358979323846)
-#endif
-
-#ifndef M_PI_2
-#define M_PI_2 (1.57079632679489661923)
-#endif
-
-#ifndef M_PI_4
-#define M_PI_4 (0.78539816339744830962)
-#endif
-
-#ifndef M_1_PI
-#define M_1_PI (0.31830988618379067154)
-#endif
-
-#ifndef M_2_PI
-#define M_2_PI (0.63661977236758134308)
-#endif
-
-#ifndef M_2_SQRTPI
-#define M_2_SQRTPI (1.12837916709551257390)
-#endif
-
-#ifndef M_SQRT2
-#define M_SQRT2 (1.41421356237309504880)
-#endif
-
-#ifndef M_SQRT1_2
-#define M_SQRT1_2 (0.70710678118654752440)
-#endif
-
-inline qreal qFastSin(qreal x)
-{
-    int si = int(x * (0.5 * QT_SINE_TABLE_SIZE / M_PI)); // Would be more accurate with qRound, but slower.
-    qreal d = x - si * (2.0 * M_PI / QT_SINE_TABLE_SIZE);
-    int ci = si + QT_SINE_TABLE_SIZE / 4;
-    si &= QT_SINE_TABLE_SIZE - 1;
-    ci &= QT_SINE_TABLE_SIZE - 1;
-    return qt_sine_table[si] + (qt_sine_table[ci] - 0.5 * qt_sine_table[si] * d) * d;
-}
-
-inline qreal qFastCos(qreal x)
-{
-    int ci = int(x * (0.5 * QT_SINE_TABLE_SIZE / M_PI)); // Would be more accurate with qRound, but slower.
-    qreal d = x - ci * (2.0 * M_PI / QT_SINE_TABLE_SIZE);
-    int si = ci + QT_SINE_TABLE_SIZE / 4;
-    si &= QT_SINE_TABLE_SIZE - 1;
-    ci &= QT_SINE_TABLE_SIZE - 1;
-    return qt_sine_table[si] - (qt_sine_table[ci] + 0.5 * qt_sine_table[si] * d) * d;
-}
+#include <QtMath>
 
 Q_DECL_CONSTEXPR inline float qDegreesToRadians(float degrees)
 {