Resolve a few -Wunused-variable warnings in US2400.

diff --git a/libs/surfaces/us2400/gui.cc b/libs/surfaces/us2400/gui.cc
index 0f0893c85ff4849d1c2a4f70a8b9005d42e2112d..3d115cbd7b9adf5de9ab73df47e901d99547bca8 100644 (file)
--- a/libs/surfaces/us2400/gui.cc
+++ b/libs/surfaces/us2400/gui.cc
@@ -94,7 +94,6 @@ US2400ProtocolGUI::US2400ProtocolGUI (US2400Protocol& p)
        , ignore_active_change (false)
 {
        Gtk::Label* l;
-       Gtk::Alignment* align;
        int row = 0;
 
        set_border_width (12);
@@ -251,7 +250,6 @@ US2400ProtocolGUI::device_dependent_widget ()
        int row = 0;
 
        uint32_t n_surfaces = 1 + _cp.device_info().extenders();
-       uint32_t main_pos = _cp.device_info().master_position();
 
        dd_table = Gtk::manage (new Gtk::Table (2, n_surfaces));
        dd_table->set_row_spacings (4);
@@ -269,7 +267,7 @@ US2400ProtocolGUI::device_dependent_widget ()
 
        int portcount = n_surfaces;
 
-       for (uint32_t n = 0; n < portcount; ++n) {
+       for (int32_t n = 0; n < portcount; ++n) {
 
                boost::shared_ptr<Surface> surface = _cp.nth_surface (n);