Fix QNX 6.6 build, use the q* version of math functions

genericrotationsensor.cpp:85:37: error: 'sqrt' was not declared in this scope

Change-Id: I871b88130debdfd0a64421e4da8a451b586e7ba6
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/plugins/sensors/generic/genericrotationsensor.cpp b/src/plugins/sensors/generic/genericrotationsensor.cpp
index af2800c8..af2c3cfb 100644
--- a/src/plugins/sensors/generic/genericrotationsensor.cpp
+++ b/src/plugins/sensors/generic/genericrotationsensor.cpp
@@ -82,8 +82,8 @@ bool genericrotationsensor::filter(QSensorReading *reading)
 
     // Note that the formula used come from this document:
     // http://www.freescale.com/files/sensors/doc/app_note/AN3461.pdf
-    pitch = qAtan(y / sqrt(x*x + z*z)) * RADIANS_TO_DEGREES;
-    roll = qAtan(x / sqrt(y*y + z*z)) * RADIANS_TO_DEGREES;
+    pitch = qAtan(y / qSqrt(x*x + z*z)) * RADIANS_TO_DEGREES;
+    roll = qAtan(x / qSqrt(y*y + z*z)) * RADIANS_TO_DEGREES;
     // Roll is a left-handed rotation but we need right-handed rotation
     roll = -roll;
 
@@ -92,7 +92,7 @@ bool genericrotationsensor::filter(QSensorReading *reading)
     // Note that theta is defined as the angle of the Z axis relative
     // to gravity (see referenced document). It's negative when the
     // face of the device points downward.
-    qreal theta = qAtan(sqrt(x*x + y*y) / z) * RADIANS_TO_DEGREES;
+    qreal theta = qAtan(qSqrt(x*x + y*y) / z) * RADIANS_TO_DEGREES;
     if (theta < 0) {
         if (roll > 0)
             roll = 180 - roll;