Index: ignition-math6_6.4.0/src/RollingMean.cc =================================================================== --- ignition-math6_6.4.0.orig/src/RollingMean.cc +++ ignition-math6_6.4.0/src/RollingMean.cc @@ -17,6 +17,7 @@ #include #include +#include #include "ignition/math/RollingMean.hh" using namespace ignition::math;