$ ./configure --with-features=tiny --enable-gui=gtk2

term.c: In function ‘check_termcode’:
term.c:4762:12: warning: unused variable ‘bval’ [-Wunused-variable]
        int bval = hexhex2nr(tp + j + 17);
            ^~~~
term.c:4761:12: warning: unused variable ‘gval’ [-Wunused-variable]
        int gval = hexhex2nr(tp + j + 12);
            ^~~~
term.c:4760:12: warning: unused variable ‘rval’ [-Wunused-variable]
        int rval = hexhex2nr(tp + j + 7);