/usr/include/freefoam/dynamicFvMesh/ is in libfreefoam-dev 0.1.0+dfsg+1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/freefoam/dynamicFvMesh/SDA.H
/usr/include/freefoam/dynamicFvMesh/SKA.H
/usr/include/freefoam/dynamicFvMesh/createDynamicFvMesh.H
/usr/include/freefoam/dynamicFvMesh/dynamicFvMesh.H
/usr/include/freefoam/dynamicFvMesh/dynamicInkJetFvMesh.H
/usr/include/freefoam/dynamicFvMesh/dynamicMotionSolverFvMesh.H
/usr/include/freefoam/dynamicFvMesh/dynamicRefineFvMesh.H
/usr/include/freefoam/dynamicFvMesh/meshCourantNo.H
/usr/include/freefoam/dynamicFvMesh/solidBodyMotionFunction.H
/usr/include/freefoam/dynamicFvMesh/solidBodyMotionFvMesh.H
/usr/include/freefoam/dynamicFvMesh/staticFvMesh.H