* apps/papers/levillain.09.ismm/graph.cc,
        * mln/canvas/browsing/diagonal2d.hh,
        * mln/morpho/watershed/topological.hh: Remove unused variable.

        * mln/canvas/labeling/sorted.hh,
        * mln/core/concept/accumulator.hh,
        * mln/core/concept/box.hh,
        * mln/core/concept/gdpoint.hh,
        * mln/core/concept/generalized_pixel.hh,
        * mln/core/concept/gpoint.hh,
        * mln/core/concept/graph.hh,
        * mln/core/concept/image.hh,
        * mln/core/concept/iterator.hh,
        * mln/core/concept/neighborhood.hh,
        * mln/core/concept/proxy.hh,
        * mln/core/concept/pseudo_site.hh,
        * mln/core/concept/site_iterator.hh,
        * mln/core/concept/site_proxy.hh,
        * mln/core/concept/site_set.hh,
        * mln/core/concept/value_iterator.hh,
        * mln/core/concept/value_set.hh,
        * mln/core/concept/weighted_window.hh,
        * mln/core/concept/window.hh,
        * mln/core/image/imorph/decorated_image.hh,
        * mln/core/internal/check/image_fastest.hh,
        * mln/core/internal/site_relative_iterator_base.hh,
        * mln/io/off/load.hh,
        * mln/io/off/save.hh,
        * mln/morpho/reconstruction/by_erosion/union_find.hh,
        * mln/topo/internal/complex_relative_iterator_base.hh,
        * tests/algebra/h_vec.cc,
        * tests/core/alias/point1d.cc,
        * tests/metal/unconst.cc,
        * tests/morpho/complex_image_wst.cc,
        * apps/papers/levillain.09.ismm/graph.cc,
        * mln/canvas/browsing/diagonal2d.hh,
        * mln/canvas/labeling/sorted.hh,
        * mln/core/concept/accumulator.hh,
        * mln/core/concept/box.hh,
        * mln/core/concept/gdpoint.hh,
        * mln/core/concept/generalized_pixel.hh,
        * mln/core/concept/gpoint.hh,
        * mln/core/concept/graph.hh,
        * mln/core/concept/image.hh,
        * mln/core/concept/iterator.hh,
        * mln/core/concept/neighborhood.hh,
        * mln/core/concept/proxy.hh,
        * mln/core/concept/pseudo_site.hh,
        * mln/core/concept/site_iterator.hh,
        * mln/core/concept/site_proxy.hh,
        * mln/core/concept/site_set.hh,
        * mln/core/concept/value_iterator.hh,
        * mln/core/concept/value_set.hh,
        * mln/core/concept/weighted_window.hh,
        * mln/core/concept/window.hh,
        * mln/core/image/imorph/decorated_image.hh,
        * mln/core/internal/check/image_fastest.hh,
        * mln/core/internal/site_relative_iterator_base.hh,
        * mln/io/off/load.hh,
        * mln/io/off/save.hh,
        * mln/morpho/reconstruction/by_erosion/union_find.hh,
        * mln/morpho/watershed/topological.hh,
        * mln/topo/internal/complex_relative_iterator_base.hh,
        * tests/algebra/h_vec.cc,
        * tests/core/alias/point1d.cc,
        * tests/metal/unconst.cc,
        * tests/morpho/complex_image_wst.cc,
        * tests/trait/super.cc: Fix unused variable warnings.