Thanks for your prompt response
This is what I did:
Settings->Compiler Settings->Link Libraries->Add
-user32 -Wl,-luuid -LC:/XWin/lib -lgtkmm-2.4 -lgdkmm-2.4 -latkmm-1.6 -lgtk-win32-2.0 -lpangomm-1.4 -lcairomm-1.0 -lglibmm-2.4 -lsigc-2.0 -lgdk-win32-2.0 -lgdi32 -limm32 -lshell32 -lole32 -latk-1.0 -lgdk_pixbuf-2.0 -lpangowin32-1.0 -lpangocairo-1.0 -lcairo -lpangoft2-1.0 -lfontconfig -lfreetype -lz -lpango-1.0 -lm -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lintl -liconv
Projects->Build Options->Other Options
-mms-bitfields -IC:/XWin/include/gtkmm-2.4 -IC:/XWin/lib/gtkmm-2.4/include -IC:/XWin/include/glibmm-2.4 -IC:/XWin/lib/glibmm-2.4/include -IC:/XWin/include/gdkmm-2.4 -IC:/XWin/lib/gdkmm-2.4/include -IC:/XWin/include/pangomm-1.4 -IC:/XWin/include/atkmm-1.6 -IC:/XWin/include/gtk-2.0 -IC:/XWin/include/sigc++-2.0 -IC:/XWin/lib/sigc++-2.0/include -IC:/XWin/include/glib-2.0 -IC:/XWin/lib/glib-2.0/include -IC:/XWin/lib/gtk-2.0/include -IC:/XWin/include/cairomm-1.0 -IC:/XWin/include/pango-1.0 -IC:/XWin/include/cairo -IC:/XWin/include/freetype2 -IC:/XWin/include -IC:/XWin/include/atk-1.0
but I am still getting the same error message saying that ustring.h was not found!
What did I do wrong?