Fixes:
gui.c:1373:24: error: symbol 'com_quit' redeclared with different type (originally declared at gui.c:102) - different modifiers
static void com_enlarge_top_win(void);
static void com_shrink_top_win(void);
static void com_version(void);
static void com_enlarge_top_win(void);
static void com_shrink_top_win(void);
static void com_version(void);
-static void com_quit(void);
+__noreturn static void com_quit(void);
static void com_refresh(void);
static void com_ll_incr(void);
static void com_ll_decr(void);
static void com_refresh(void);
static void com_ll_incr(void);
static void com_ll_decr(void);