i686-pc-mingw32-g++ -o test-gtk.exe main.cpp `pkg-config --cflags --libs gtkmm-2.4`
In file included from /home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/sigc++.h:23:0,
                 from /home/michal/Dropbox/GTK/GTKmm-Devel/include/glibmm-2.4/glibmm/dispatcher.h:24,
                 from /home/michal/Dropbox/GTK/GTKmm-Devel/include/glibmm-2.4/glibmm.h:32,
                 from /home/michal/Dropbox/GTK/GTKmm-Devel/include/gtkmm-2.4/gtkmm.h:29,
                 from main.cpp:1:
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:1675:26: error: declaration of 'typedef sigc::signal0<T_return, T_accumulator>::slot_list_type sigc::signal0<T_return, T_accumulator>::slot_list' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:167:8: error: changes meaning of 'slot_list' from 'struct sigc::slot_list<sigc::slot<T_return> >' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:1784:26: error: declaration of 'typedef sigc::signal1<T_return, T_arg1, T_accumulator>::slot_list_type sigc::signal1<T_return, T_arg1, T_accumulator>::slot_list' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:167:8: error: changes meaning of 'slot_list' from 'struct sigc::slot_list<sigc::slot<T_return, T_arg1> >' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:1895:26: error: declaration of 'typedef sigc::signal2<T_return, T_arg1, T_arg2, T_accumulator>::slot_list_type sigc::signal2<T_return, T_arg1, T_arg2, T_accumulator>::slot_list' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:167:8: error: changes meaning of 'slot_list' from 'struct sigc::slot_list<sigc::slot<T_return, T_arg1, T_arg2> >' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:2008:26: error: declaration of 'typedef sigc::signal3<T_return, T_arg1, T_arg2, T_arg3, T_accumulator>::slot_list_type sigc::signal3<T_return, T_arg1, T_arg2, T_arg3, T_accumulator>::slot_list' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:167:8: error: changes meaning of 'slot_list' from 'struct sigc::slot_list<sigc::slot<T_return, T_arg1, T_arg2, T_arg3> >' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:2123:26: error: declaration of 'typedef sigc::signal4<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_accumulator>::slot_list_type sigc::signal4<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_accumulator>::slot_list' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:167:8: error: changes meaning of 'slot_list' from 'struct sigc::slot_list<sigc::slot<T_return, T_arg1, T_arg2, T_arg3, T_arg4> >' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:2240:26: error: declaration of 'typedef sigc::signal5<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_accumulator>::slot_list_type sigc::signal5<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_accumulator>::slot_list' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:167:8: error: changes meaning of 'slot_list' from 'struct sigc::slot_list<sigc::slot<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5> >' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:2359:26: error: declaration of 'typedef sigc::signal6<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_accumulator>::slot_list_type sigc::signal6<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_accumulator>::slot_list' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:167:8: error: changes meaning of 'slot_list' from 'struct sigc::slot_list<sigc::slot<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6> >' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:2480:26: error: declaration of 'typedef sigc::signal7<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7, T_accumulator>::slot_list_type sigc::signal7<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7, T_accumulator>::slot_list' [-fpermissive]
/home/michal/Dropbox/GTK/GTKmm-Devel/include/sigc++-2.0/sigc++/signal.h:167:8: error: changes meaning of 'slot_list' from 'struct sigc::slot_list<sigc::slot<T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7> >' [-fpermissive]