Compilation warning: Implicitly declared variables position and vertexid

[MakisH]

When trying to build the elastic-tube-1d fluid-fortran-module, I got this warning (gfortran 11.4.0):

fortran-module/precice.f90

Lines 106 to 107 in dc88c3b

	subroutine precicef_set_vertex(meshName, position, vertexID, meshNameLength) &
	& bind(c, name='precicef_set_vertex_')

[ 40%] Building Fortran object CMakeFiles/FluidSolver.dir/src/precice.f90.o
/home/gc/repos/precice/tutorials/elastic-tube-1d/fluid-fortran-module/src/precice.f90:106:34-53:

  106 |     subroutine precicef_set_vertex(meshName, position, vertexID, meshNameLength) &
      |                                  2                  1
Warning: Implicitly declared variable ‘position’ at (1) may not be C interoperable but it is a dummy argument to the BIND(C) procedure ‘precicef_set_vertex’ at (2) [-Wc-binding-type]
/home/gc/repos/precice/tutorials/elastic-tube-1d/fluid-fortran-module/src/precice.f90:106:34-63:

  106 |     subroutine precicef_set_vertex(meshName, position, vertexID, meshNameLength) &
      |                                  2                            1
Warning: Implicitly declared variable ‘vertexid’ at (1) may not be C interoperable but it is a dummy argument to the BIND(C) procedure ‘precicef_set_vertex’ at (2) [-Wc-binding-type]