/home/shadowm/src/wesnoth/src/video.cpp:257:38: warning: unused parameter ‘surf’ [-Wunused-parameter]
 surface display_format_alpha(surface surf)
                                      ^
/home/shadowm/src/wesnoth/src/video.cpp:506:31: warning: unused parameter ‘x’ [-Wunused-parameter]
 int CVideo::modePossible( int x, int y, int bits_per_pixel, int flags, bool current_screen_optimal )
                               ^
/home/shadowm/src/wesnoth/src/video.cpp:506:38: warning: unused parameter ‘y’ [-Wunused-parameter]
 int CVideo::modePossible( int x, int y, int bits_per_pixel, int flags, bool current_screen_optimal )
                                      ^
/home/shadowm/src/wesnoth/src/video.cpp:506:65: warning: unused parameter ‘flags’ [-Wunused-parameter]
 int CVideo::modePossible( int x, int y, int bits_per_pixel, int flags, bool current_screen_optimal )
                                                                 ^
/home/shadowm/src/wesnoth/src/video.cpp:506:77: warning: unused parameter ‘current_screen_optimal’ [-Wunused-parameter]
 int CVideo::modePossible( int x, int y, int bits_per_pixel, int flags, bool current_screen_optimal )
                                                                             ^
/home/shadowm/src/wesnoth/src/video.cpp:223:13: warning: ‘void clear_updates()’ defined but not used [-Wunused-function]
 static void clear_updates()
             ^
/home/shadowm/src/wesnoth/src/video.cpp:124:13: warning: ‘void {anonymous}::calc_rects()’ defined but not used [-Wunused-function]
 static void calc_rects()
             ^
--------------
/home/shadowm/src/wesnoth/src/widgets/menu.cpp: In member function ‘void gui::menu::column_widths_item(const std::vector<std::basic_string<char> >&, std::vector<int>&) const’:
/home/shadowm/src/wesnoth/src/widgets/menu.cpp:906:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   } else if(res.w > widths[col] - text_trailing_space) {
                   ^
--------------
/home/shadowm/src/wesnoth/src/sdl/utils.cpp: In function ‘void blur_surface(surface&, SDL_Rect, unsigned int)’:
/home/shadowm/src/wesnoth/src/sdl/utils.cpp:1748:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(unsigned y = 0; y < rect.h; ++y) {
                        ^
/home/shadowm/src/wesnoth/src/sdl/utils.cpp:1753:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(unsigned x = 0; x <= depth && x < rect.w; ++x, ++p) {
                                       ^
/home/shadowm/src/wesnoth/src/sdl/utils.cpp:1765:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(unsigned x = 0; x < rect.w; ++x, ++p) {
                         ^
/home/shadowm/src/wesnoth/src/sdl/utils.cpp:1782:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(x + depth+1 < rect.w) {
                   ^
/home/shadowm/src/wesnoth/src/sdl/utils.cpp:1796:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(unsigned x = 0; x < rect.w; ++x) {
                        ^
/home/shadowm/src/wesnoth/src/sdl/utils.cpp:1801:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(unsigned y = 0; y <= depth && y < rect.h; ++y, p += surf->w) {
                                       ^
/home/shadowm/src/wesnoth/src/sdl/utils.cpp:1813:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(unsigned y = 0; y < rect.h; ++y, p += surf->w) {
                         ^
/home/shadowm/src/wesnoth/src/sdl/utils.cpp:1830:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(y + depth+1 < rect.h) {
                   ^