Fix build

src/meshinflate.cpp

@@ -1,5 +1,6 @@
 #include <QDebug>
 #include <set>
+#include <cmath>
 #include "meshinflate.h"
 #include "meshutil.h"
 
@@ -47,4 +48,4 @@ void *meshInflate(void *combinableMesh, const std::vector<std::pair<QVector3D, f
     }
     
     return buildCombinableMeshFromVerticesPositionsAndFacesIndices(newPositions, faces);
-}
+}