build fails with -DDEBUG

[Jun T. <tak...@kb...>]

With CPPFLAGS='-DDEBUG', build fails as

wxterminal/wxt_gui.cpp:2027:3: error: use of undeclared identifier 'sw'
                sw.Time(), term->xmax, term->ymax, term->v_char, term->h_char));
                ^

and a few more similar errors.
The stop watch "sw" seems to be not defined (constructed) anywhere.