diff --git a/arguments.c b/arguments.c
index 3dbfbfb78..2aedd7ce2 100644
--- a/arguments.c
+++ b/arguments.c
@@ -35,6 +35,7 @@ struct args_entry {
 	RB_ENTRY(args_entry)	 entry;
 };
 
+static void			 args_set(struct args *, u_char, const char *);
 static struct args_entry	*args_find(struct args *, u_char);
 
 static int	args_cmp(struct args_entry *, struct args_entry *);
@@ -47,30 +48,6 @@ args_cmp(struct args_entry *a1, struct args_entry *a2)
 	return (a1->flag - a2->flag);
 }
 
-/* Create an arguments set with no flags. */
-struct args *
-args_create(int argc, ...)
-{
-	struct args	*args;
-	va_list		 ap;
-	int		 i;
-
-	args = xcalloc(1, sizeof *args);
-
-	args->argc = argc;
-	if (argc == 0)
-		args->argv = NULL;
-	else
-		args->argv = xcalloc(argc, sizeof *args->argv);
-
-	va_start(ap, argc);
-	for (i = 0; i < argc; i++)
-		args->argv[i] = xstrdup(va_arg(ap, char *));
-	va_end(ap);
-
-	return (args);
-}
-
 /* Find a flag in the arguments tree. */
 static struct args_entry *
 args_find(struct args *args, u_char ch)
@@ -206,7 +183,7 @@ args_has(struct args *args, u_char ch)
 }
 
 /* Set argument value in the arguments tree. */
-void
+static void
 args_set(struct args *args, u_char ch, const char *value)
 {
 	struct args_entry	*entry;
diff --git a/cmd-queue.c b/cmd-queue.c
index e9073c927..5a81f88e7 100644
--- a/cmd-queue.c
+++ b/cmd-queue.c
@@ -26,6 +26,7 @@
 #include "tmux.h"
 
 static enum cmd_retval	cmdq_continue_one(struct cmd_q *);
+static void		cmdq_flush(struct cmd_q *);
 
 /* Create new command queue. */
 struct cmd_q *
@@ -319,7 +320,7 @@ cmdq_continue(struct cmd_q *cmdq)
 }
 
 /* Flush command queue. */
-void
+static void
 cmdq_flush(struct cmd_q *cmdq)
 {
 	struct cmd_q_item	*item, *item1;
diff --git a/grid.c b/grid.c
index 730979836..35de2aef1 100644
--- a/grid.c
+++ b/grid.c
@@ -43,6 +43,8 @@ const struct grid_cell_entry grid_default_entry = {
 	0, { .data = { 0, 8, 8, ' ' } }
 };
 
+static void	grid_expand_line(struct grid *, u_int, u_int);
+
 static void	grid_reflow_copy(struct grid_line *, u_int, struct grid_line *,
 		    u_int, u_int);
 static void	grid_reflow_join(struct grid *, u_int *, struct grid_line *,
@@ -50,6 +52,7 @@ static void	grid_reflow_join(struct grid *, u_int *, struct grid_line *,
 static void	grid_reflow_split(struct grid *, u_int *, struct grid_line *,
 		    u_int, u_int);
 static void	grid_reflow_move(struct grid *, u_int *, struct grid_line *);
+
 static size_t	grid_string_cells_fg(const struct grid_cell *, int *);
 static size_t	grid_string_cells_bg(const struct grid_cell *, int *);
 static void	grid_string_cells_code(const struct grid_cell *,
@@ -243,7 +246,7 @@ grid_scroll_history_region(struct grid *gd, u_int upper, u_int lower)
 }
 
 /* Expand line to fit to cell. */
-void
+static void
 grid_expand_line(struct grid *gd, u_int py, u_int sx)
 {
 	struct grid_line	*gl;
diff --git a/names.c b/names.c
index b83a0cb7e..6a3688250 100644
--- a/names.c
+++ b/names.c
@@ -25,8 +25,10 @@
 
 #include "tmux.h"
 
-static void	name_time_callback(int, short, void *);
-static int	name_time_expired(struct window *, struct timeval *);
+static void	 name_time_callback(int, short, void *);
+static int	 name_time_expired(struct window *, struct timeval *);
+
+static char	*format_window_name(struct window *);
 
 static void
 name_time_callback(__unused int fd, __unused short events, void *arg)
@@ -115,7 +117,7 @@ default_window_name(struct window *w)
 	return (s);
 }
 
-char *
+static char *
 format_window_name(struct window *w)
 {
 	struct format_tree	*ft;
diff --git a/screen.c b/screen.c
index b0ba216a7..7bde6f9b3 100644
--- a/screen.c
+++ b/screen.c
@@ -27,6 +27,8 @@
 static void	screen_resize_x(struct screen *, u_int);
 static void	screen_resize_y(struct screen *, u_int);
 
+static void	screen_reflow(struct screen *, u_int);
+
 /* Create a new screen. */
 void
 screen_init(struct screen *s, u_int sx, u_int sy, u_int hlimit)
@@ -370,7 +372,7 @@ screen_check_selection(struct screen *s, u_int px, u_int py)
 }
 
 /* Reflow wrapped lines. */
-void
+static void
 screen_reflow(struct screen *s, u_int new_x)
 {
 	struct grid	*old = s->grid;
diff --git a/server-fn.c b/server-fn.c
index bcb05ddb9..727503214 100644
--- a/server-fn.c
+++ b/server-fn.c
@@ -30,6 +30,7 @@
 
 static struct session	*server_next_session(struct session *);
 static void		 server_callback_identify(int, short, void *);
+static void		 server_destroy_session_group(struct session *);
 
 void
 server_fill_environ(struct session *s, struct environ *env)
@@ -339,7 +340,7 @@ server_destroy_pane(struct window_pane *wp, int hooks)
 		server_redraw_window(w);
 }
 
-void
+static void
 server_destroy_session_group(struct session *s)
 {
 	struct session_group	*sg;
diff --git a/session.c b/session.c
index e21140233..dcd37bb13 100644
--- a/session.c
+++ b/session.c
@@ -38,6 +38,10 @@ static void	session_lock_timer(int, short, void *);
 static struct winlink *session_next_alert(struct winlink *);
 static struct winlink *session_previous_alert(struct winlink *);
 
+static void	session_group_remove(struct session *);
+static u_int	session_group_count(struct session_group *);
+static void	session_group_synchronize1(struct session *, struct session *);
+
 RB_GENERATE(sessions, session, entry, session_cmp);
 
 int
@@ -582,7 +586,7 @@ session_group_add(struct session *target, struct session *s)
 }
 
 /* Remove a session from its group and destroy the group if empty. */
-void
+static void
 session_group_remove(struct session *s)
 {
 	struct session_group	*sg;
@@ -599,7 +603,7 @@ session_group_remove(struct session *s)
 }
 
 /* Count number of sessions in session group. */
-u_int
+static u_int
 session_group_count(struct session_group *sg)
 {
 	struct session	*s;
@@ -650,7 +654,7 @@ session_group_synchronize_from(struct session *target)
  * winlinks then recreating them, then updating the current window, last window
  * stack and alerts.
  */
-void
+static void
 session_group_synchronize1(struct session *target, struct session *s)
 {
 	struct winlinks		 old_windows, *ww;
diff --git a/tmux.c b/tmux.c
index 413fea3a0..dbd91e2b9 100644
--- a/tmux.c
+++ b/tmux.c
@@ -47,6 +47,9 @@ const char	*socket_path;
 static __dead void	 usage(void);
 static char		*make_label(const char *);
 
+static const char	*getshell(void);
+static int		 checkshell(const char *);
+
 static __dead void
 usage(void)
 {
@@ -57,7 +60,7 @@ usage(void)
 	exit(1);
 }
 
-const char *
+static const char *
 getshell(void)
 {
 	struct passwd	*pw;
@@ -74,7 +77,7 @@ getshell(void)
 	return (_PATH_BSHELL);
 }
 
-int
+static int
 checkshell(const char *shell)
 {
 	if (shell == NULL || *shell == '\0' || *shell != '/')
diff --git a/tmux.h b/tmux.h
index f18276c55..e2c1514c5 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1520,8 +1520,6 @@ extern struct options	*global_w_options;
 extern struct environ	*global_environ;
 extern struct timeval	 start_time;
 extern const char	*socket_path;
-const char	*getshell(void);
-int		 checkshell(const char *);
 int		 areshell(const char *);
 void		 setblocking(int, int);
 const char	*find_home(void);
@@ -1681,14 +1679,11 @@ void	environ_log(struct environ *, const char *);
 
 /* tty.c */
 void	tty_create_log(void);
-void	tty_init_termios(int, struct termios *, struct bufferevent *);
 void	tty_raw(struct tty *, const char *);
 void	tty_attributes(struct tty *, const struct grid_cell *,
 	    const struct window_pane *);
 void	tty_reset(struct tty *);
-void	tty_region_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
 void	tty_region(struct tty *, u_int, u_int);
-void	tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
 void	tty_cursor(struct tty *, u_int, u_int);
 void	tty_putcode(struct tty *, enum tty_code_code);
 void	tty_putcode1(struct tty *, enum tty_code_code, int);
@@ -1706,7 +1701,6 @@ void	tty_start_tty(struct tty *);
 void	tty_stop_tty(struct tty *);
 void	tty_set_title(struct tty *, const char *);
 void	tty_update_mode(struct tty *, int, struct screen *);
-void	tty_force_cursor_colour(struct tty *, const char *);
 void	tty_draw_pane(struct tty *, const struct window_pane *, u_int, u_int,
 	    u_int);
 void	tty_draw_line(struct tty *, const struct window_pane *, struct screen *,
@@ -1763,12 +1757,10 @@ void		tty_keys_free(struct tty *);
 key_code	tty_keys_next(struct tty *);
 
 /* arguments.c */
-struct args	*args_create(int, ...);
 struct args	*args_parse(const char *, int, char **);
 void		 args_free(struct args *);
 char		*args_print(struct args *);
 int		 args_has(struct args *, u_char);
-void		 args_set(struct args *, u_char, const char *);
 const char	*args_get(struct args *, u_char);
 long long	 args_strtonum(struct args *, u_char, long long, long long,
 		     char **);
@@ -1832,7 +1824,6 @@ void		 cmdq_run(struct cmd_q *, struct cmd_list *,
 void		 cmdq_append(struct cmd_q *, struct cmd_list *,
 		     struct mouse_event *);
 int		 cmdq_continue(struct cmd_q *);
-void		 cmdq_flush(struct cmd_q *);
 
 /* cmd-string.c */
 int	cmd_string_parse(const char *, struct cmd_list **, const char *,
@@ -1916,7 +1907,6 @@ int	 server_link_window(struct session *,
 	     struct winlink *, struct session *, int, int, int, char **);
 void	 server_unlink_window(struct session *, struct winlink *);
 void	 server_destroy_pane(struct window_pane *, int);
-void	 server_destroy_session_group(struct session *);
 void	 server_destroy_session(struct session *);
 void	 server_check_unattached(void);
 void	 server_set_identify(struct client *);
@@ -1982,7 +1972,6 @@ void	 grid_collect_history(struct grid *);
 void	 grid_scroll_history(struct grid *);
 void	 grid_scroll_history_region(struct grid *, u_int, u_int);
 void	 grid_clear_history(struct grid *);
-void	 grid_expand_line(struct grid *, u_int, u_int);
 const struct grid_line *grid_peek_line(struct grid *, u_int);
 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
@@ -2078,7 +2067,6 @@ void	 screen_set_selection(struct screen *,
 	     u_int, u_int, u_int, u_int, u_int, struct grid_cell *);
 void	 screen_clear_selection(struct screen *);
 int	 screen_check_selection(struct screen *, u_int, u_int);
-void	 screen_reflow(struct screen *, u_int);
 
 /* window.c */
 extern struct windows windows;
@@ -2092,7 +2080,6 @@ RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
 struct winlink	*winlink_find_by_index(struct winlinks *, int);
 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
-int		 winlink_next_index(struct winlinks *, int);
 u_int		 winlink_count(struct winlinks *);
 struct winlink	*winlink_add(struct winlinks *, int);
 void		 winlink_set_window(struct winlink *, struct window *);
@@ -2136,8 +2123,6 @@ u_int		 window_count_panes(struct window *);
 void		 window_destroy_panes(struct window *);
 struct window_pane *window_pane_find_by_id_str(const char *);
 struct window_pane *window_pane_find_by_id(u_int);
-struct window_pane *window_pane_create(struct window *, u_int, u_int, u_int);
-void		 window_pane_destroy(struct window_pane *);
 int		 window_pane_spawn(struct window_pane *, int, char **,
 		     const char *, const char *, const char *, struct environ *,
 		     struct termios *, char **);
@@ -2223,7 +2208,6 @@ void		 window_choose_ready(struct window_pane *,
 		     u_int, void (*)(struct window_choose_data *));
 struct window_choose_data	*window_choose_data_create (int,
 		     struct client *, struct session *);
-void	window_choose_data_free(struct window_choose_data *);
 void	window_choose_data_run(struct window_choose_data *);
 struct window_choose_data	*window_choose_add_window(struct window_pane *,
 			struct client *, struct session *, struct winlink *,
@@ -2232,13 +2216,11 @@ struct window_choose_data	*window_choose_add_session(struct window_pane *,
 			struct client *, struct session *, const char *,
 			const char *, u_int);
 void	window_choose_expand_all(struct window_pane *);
-void	window_choose_collapse_all(struct window_pane *);
 void	window_choose_set_current(struct window_pane *, u_int);
 
 /* names.c */
 void	 check_window_name(struct window *);
 char	*default_window_name(struct window *);
-char	*format_window_name(struct window *);
 char	*parse_window_name(const char *);
 
 /* signal.c */
@@ -2295,11 +2277,8 @@ int		 session_set_current(struct session *, struct winlink *);
 struct session_group *session_group_find(struct session *);
 u_int		 session_group_index(struct session_group *);
 void		 session_group_add(struct session *, struct session *);
-void		 session_group_remove(struct session *);
-u_int		 session_group_count(struct session_group *);
 void		 session_group_synchronize_to(struct session *);
 void		 session_group_synchronize_from(struct session *);
-void		 session_group_synchronize1(struct session *, struct session *);
 void		 session_renumber_windows(struct session *);
 
 /* utf8.c */
diff --git a/tty.c b/tty.c
index f9b5c89de..d8702a2f3 100644
--- a/tty.c
+++ b/tty.c
@@ -33,6 +33,8 @@
 
 static int	tty_log_fd = -1;
 
+static void	tty_init_termios(int, struct termios *, struct bufferevent *);
+
 static void	tty_read_callback(struct bufferevent *, void *);
 static void	tty_error_callback(struct bufferevent *, short, void *);
 
@@ -40,6 +42,9 @@ static int	tty_client_ready(struct client *, struct window_pane *);
 
 static void	tty_set_italics(struct tty *);
 static int	tty_try_colour(struct tty *, int, const char *);
+static void	tty_force_cursor_colour(struct tty *, const char *);
+static void	tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int,
+		    u_int);
 
 static void	tty_colours(struct tty *, const struct grid_cell *);
 static void	tty_check_fg(struct tty *, struct grid_cell *);
@@ -47,6 +52,8 @@ static void	tty_check_bg(struct tty *, struct grid_cell *);
 static void	tty_colours_fg(struct tty *, const struct grid_cell *);
 static void	tty_colours_bg(struct tty *, const struct grid_cell *);
 
+static void	tty_region_pane(struct tty *, const struct tty_ctx *, u_int,
+		    u_int);
 static int	tty_large_region(struct tty *, const struct tty_ctx *);
 static int	tty_fake_bce(const struct tty *, const struct window_pane *);
 static void	tty_redraw_region(struct tty *, const struct tty_ctx *);
@@ -189,7 +196,7 @@ tty_error_callback(__unused struct bufferevent *bufev, __unused short what,
 {
 }
 
-void
+static void
 tty_init_termios(int fd, struct termios *orig_tio, struct bufferevent *bufev)
 {
 	struct termios	tio;
@@ -478,7 +485,7 @@ tty_set_title(struct tty *tty, const char *title)
 	tty_putcode(tty, TTYC_FSL);
 }
 
-void
+static void
 tty_force_cursor_colour(struct tty *tty, const char *ccolour)
 {
 	if (*ccolour == '\0')
@@ -1182,7 +1189,7 @@ tty_reset(struct tty *tty)
 }
 
 /* Set region inside pane. */
-void
+static void
 tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
     u_int rlower)
 {
@@ -1215,7 +1222,7 @@ tty_region(struct tty *tty, u_int rupper, u_int rlower)
 }
 
 /* Move cursor inside pane. */
-void
+static void
 tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
 {
 	tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
diff --git a/window-choose.c b/window-choose.c
index 19677c869..02c102571 100644
--- a/window-choose.c
+++ b/window-choose.c
@@ -24,27 +24,32 @@
 
 #include "tmux.h"
 
-struct screen *window_choose_init(struct window_pane *);
-void	window_choose_free(struct window_pane *);
-void	window_choose_resize(struct window_pane *, u_int, u_int);
-void	window_choose_key(struct window_pane *, struct client *,
-	    struct session *, key_code, struct mouse_event *);
+static struct screen *window_choose_init(struct window_pane *);
+static void	window_choose_free(struct window_pane *);
+static void	window_choose_resize(struct window_pane *, u_int, u_int);
+static void	window_choose_key(struct window_pane *, struct client *,
+		    struct session *, key_code, struct mouse_event *);
 
-void	window_choose_default_callback(struct window_choose_data *);
-struct window_choose_mode_item *window_choose_get_item(struct window_pane *,
-	    key_code, struct mouse_event *);
+static void	window_choose_default_callback(struct window_choose_data *);
+static struct window_choose_mode_item *window_choose_get_item(
+		    struct window_pane *, key_code, struct mouse_event *);
 
-void	window_choose_fire_callback(struct window_pane *,
-	    struct window_choose_data *);
-void	window_choose_redraw_screen(struct window_pane *);
-void	window_choose_write_line(struct window_pane *,
-	    struct screen_write_ctx *, u_int);
+static void	window_choose_fire_callback(struct window_pane *,
+		    struct window_choose_data *);
+static void	window_choose_redraw_screen(struct window_pane *);
+static void	window_choose_write_line(struct window_pane *,
+		    struct screen_write_ctx *, u_int);
 
-void	window_choose_scroll_up(struct window_pane *);
-void	window_choose_scroll_down(struct window_pane *);
+static void	window_choose_scroll_up(struct window_pane *);
+static void	window_choose_scroll_down(struct window_pane *);
 
-void	window_choose_collapse(struct window_pane *, struct session *, u_int);
-void	window_choose_expand(struct window_pane *, struct session *, u_int);
+static void	window_choose_collapse(struct window_pane *, struct session *,
+		    u_int);
+static void	window_choose_expand(struct window_pane *, struct session *,
+		    u_int);
+static void	window_choose_collapse_all(struct window_pane *);
+
+static void	window_choose_data_free(struct window_choose_data *);
 
 enum window_choose_input_type {
 	WINDOW_CHOOSE_NORMAL = -1,
@@ -86,12 +91,14 @@ struct window_choose_mode_data {
 	void 			(*callbackfn)(struct window_choose_data *);
 };
 
-void	window_choose_free1(struct window_choose_mode_data *);
-int     window_choose_key_index(struct window_choose_mode_data *, u_int);
-int     window_choose_index_key(struct window_choose_mode_data *, key_code);
-void	window_choose_prompt_input(enum window_choose_input_type,
-	    const char *, struct window_pane *, key_code);
-void	window_choose_reset_top(struct window_pane *, u_int);
+static void	window_choose_free1(struct window_choose_mode_data *);
+static int	window_choose_key_index(struct window_choose_mode_data *,
+		    u_int);
+static int	window_choose_index_key(struct window_choose_mode_data *,
+		    key_code);
+static void	window_choose_prompt_input(enum window_choose_input_type,
+		    const char *, struct window_pane *, key_code);
+static void	window_choose_reset_top(struct window_pane *, u_int);
 
 void
 window_choose_add(struct window_pane *wp, struct window_choose_data *wcd)
@@ -122,7 +129,7 @@ window_choose_set_current(struct window_pane *wp, u_int cur)
 	window_choose_reset_top(wp, screen_size_y(s));
 }
 
-void
+static void
 window_choose_reset_top(struct window_pane *wp, u_int sy)
 {
 	struct window_choose_mode_data	*data = wp->modedata;
@@ -156,7 +163,7 @@ window_choose_ready(struct window_pane *wp, u_int cur,
 	window_choose_collapse_all(wp);
 }
 
-struct screen *
+static struct screen *
 window_choose_init(struct window_pane *wp)
 {
 	struct window_choose_mode_data	*data;
@@ -218,7 +225,7 @@ window_choose_data_create(int type, struct client *c, struct session *s)
 	return (wcd);
 }
 
-void
+static void
 window_choose_data_free(struct window_choose_data *wcd)
 {
 	server_client_unref(wcd->start_client);
@@ -260,7 +267,7 @@ window_choose_data_run(struct window_choose_data *cdata)
 	cmd_list_free(cmdlist);
 }
 
-void
+static void
 window_choose_default_callback(struct window_choose_data *wcd)
 {
 	if (wcd == NULL)
@@ -271,14 +278,14 @@ window_choose_default_callback(struct window_choose_data *wcd)
 	window_choose_data_run(wcd);
 }
 
-void
+static void
 window_choose_free(struct window_pane *wp)
 {
 	if (wp->modedata != NULL)
 		window_choose_free1(wp->modedata);
 }
 
-void
+static void
 window_choose_free1(struct window_choose_mode_data *data)
 {
 	struct window_choose_mode_item	*item;
@@ -301,7 +308,7 @@ window_choose_free1(struct window_choose_mode_data *data)
 	free(data);
 }
 
-void
+static void
 window_choose_resize(struct window_pane *wp, u_int sx, u_int sy)
 {
 	struct window_choose_mode_data	*data = wp->modedata;
@@ -312,7 +319,7 @@ window_choose_resize(struct window_pane *wp, u_int sx, u_int sy)
 	window_choose_redraw_screen(wp);
 }
 
-void
+static void
 window_choose_fire_callback(struct window_pane *wp,
     struct window_choose_data *wcd)
 {
@@ -326,7 +333,7 @@ window_choose_fire_callback(struct window_pane *wp,
 	window_choose_free1(data);
 }
 
-void
+static void
 window_choose_prompt_input(enum window_choose_input_type input_type,
     const char *prompt, struct window_pane *wp, key_code key)
 {
@@ -344,7 +351,7 @@ window_choose_prompt_input(enum window_choose_input_type input_type,
 	window_choose_redraw_screen(wp);
 }
 
-void
+static void
 window_choose_collapse(struct window_pane *wp, struct session *s, u_int pos)
 {
 	struct window_choose_mode_data	*data = wp->modedata;
@@ -395,7 +402,7 @@ window_choose_collapse(struct window_pane *wp, struct session *s, u_int pos)
 	}
 }
 
-void
+static void
 window_choose_collapse_all(struct window_pane *wp)
 {
 	struct window_choose_mode_data	*data = wp->modedata;
@@ -446,7 +453,7 @@ window_choose_expand_all(struct window_pane *wp)
 	window_choose_reset_top(wp, screen_size_y(scr));
 }
 
-void
+static void
 window_choose_expand(struct window_pane *wp, struct session *s, u_int pos)
 {
 	struct window_choose_mode_data	*data = wp->modedata;
@@ -518,7 +525,7 @@ window_choose_expand(struct window_pane *wp, struct session *s, u_int pos)
 	}
 }
 
-struct window_choose_mode_item *
+static struct window_choose_mode_item *
 window_choose_get_item(struct window_pane *wp, key_code key,
     struct mouse_event *m)
 {
@@ -537,7 +544,7 @@ window_choose_get_item(struct window_pane *wp, key_code key,
 	return (&data->list[idx]);
 }
 
-void
+static void
 window_choose_key(struct window_pane *wp, __unused struct client *c,
     __unused struct session *sess, key_code key, struct mouse_event *m)
 {
@@ -769,7 +776,7 @@ window_choose_key(struct window_pane *wp, __unused struct client *c,
 	}
 }
 
-void
+static void
 window_choose_write_line(struct window_pane *wp, struct screen_write_ctx *ctx,
     u_int py)
 {
@@ -827,7 +834,7 @@ window_choose_write_line(struct window_pane *wp, struct screen_write_ctx *ctx,
 
 }
 
-int
+static int
 window_choose_key_index(struct window_choose_mode_data *data, u_int idx)
 {
 	static const char	keys[] = "0123456789"
@@ -846,7 +853,7 @@ window_choose_key_index(struct window_choose_mode_data *data, u_int idx)
 	return (-1);
 }
 
-int
+static int
 window_choose_index_key(struct window_choose_mode_data *data, key_code key)
 {
 	static const char	keys[] = "0123456789"
@@ -867,7 +874,7 @@ window_choose_index_key(struct window_choose_mode_data *data, key_code key)
 	return (-1);
 }
 
-void
+static void
 window_choose_redraw_screen(struct window_pane *wp)
 {
 	struct window_choose_mode_data	*data = wp->modedata;
@@ -881,7 +888,7 @@ window_choose_redraw_screen(struct window_pane *wp)
 	screen_write_stop(&ctx);
 }
 
-void
+static void
 window_choose_scroll_up(struct window_pane *wp)
 {
 	struct window_choose_mode_data	*data = wp->modedata;
@@ -900,7 +907,7 @@ window_choose_scroll_up(struct window_pane *wp)
 	screen_write_stop(&ctx);
 }
 
-void
+static void
 window_choose_scroll_down(struct window_pane *wp)
 {
 	struct window_choose_mode_data	*data = wp->modedata;
diff --git a/window-copy.c b/window-copy.c
index 5c1f5f817..d282e25e4 100644
--- a/window-copy.c
+++ b/window-copy.c
@@ -24,76 +24,82 @@
 
 #include "tmux.h"
 
-const char *window_copy_key_table(struct window_pane *);
-void	window_copy_command(struct window_pane *, struct client *,
-	    struct session *, struct args *, struct mouse_event *);
-struct screen *window_copy_init(struct window_pane *);
-void	window_copy_free(struct window_pane *);
-void	window_copy_pagedown(struct window_pane *, int);
-void	window_copy_next_paragraph(struct window_pane *);
-void	window_copy_previous_paragraph(struct window_pane *);
-void	window_copy_resize(struct window_pane *, u_int, u_int);
-
-void	window_copy_redraw_selection(struct window_pane *, u_int);
-void	window_copy_redraw_lines(struct window_pane *, u_int, u_int);
-void	window_copy_redraw_screen(struct window_pane *);
-void	window_copy_write_line(struct window_pane *, struct screen_write_ctx *,
-	    u_int);
-void	window_copy_write_lines(struct window_pane *,
-	    struct screen_write_ctx *, u_int, u_int);
-
-void	window_copy_scroll_to(struct window_pane *, u_int, u_int);
-int	window_copy_search_compare(struct grid *, u_int, u_int, struct grid *,
-	    u_int, int);
-int	window_copy_search_lr(struct grid *, struct grid *, u_int *, u_int,
-	    u_int, u_int, int);
-int	window_copy_search_rl(struct grid *, struct grid *, u_int *, u_int,
-	    u_int, u_int, int);
-void	window_copy_move_left(struct screen *, u_int *, u_int *);
-void	window_copy_move_right(struct screen *, u_int *, u_int *);
-int	window_copy_is_lowercase(const char *);
-void	window_copy_search_jump(struct window_pane *, struct grid *,
-	    struct grid *, u_int, u_int, u_int, int, int, int);
-void	window_copy_search(struct window_pane *, const char *, int, int);
-void	window_copy_search_up(struct window_pane *, const char *, int);
-void	window_copy_search_down(struct window_pane *, const char *, int);
-void	window_copy_goto_line(struct window_pane *, const char *);
-void	window_copy_update_cursor(struct window_pane *, u_int, u_int);
-void	window_copy_start_selection(struct window_pane *);
-int	window_copy_update_selection(struct window_pane *, int);
-void   *window_copy_get_selection(struct window_pane *, size_t *);
-void	window_copy_copy_buffer(struct window_pane *, const char *, void *,
-	    size_t);
-void	window_copy_copy_pipe(struct window_pane *, struct session *,
-	    const char *, const char *);
-void	window_copy_copy_selection(struct window_pane *, const char *);
-void	window_copy_append_selection(struct window_pane *, const char *);
-void	window_copy_clear_selection(struct window_pane *);
-void	window_copy_copy_line(struct window_pane *, char **, size_t *, u_int,
-	    u_int, u_int);
-int	window_copy_in_set(struct window_pane *, u_int, u_int, const char *);
-u_int	window_copy_find_length(struct window_pane *, u_int);
-void	window_copy_cursor_start_of_line(struct window_pane *);
-void	window_copy_cursor_back_to_indentation(struct window_pane *);
-void	window_copy_cursor_end_of_line(struct window_pane *);
-void	window_copy_other_end(struct window_pane *);
-void	window_copy_cursor_left(struct window_pane *);
-void	window_copy_cursor_right(struct window_pane *);
-void	window_copy_cursor_up(struct window_pane *, int);
-void	window_copy_cursor_down(struct window_pane *, int);
-void	window_copy_cursor_jump(struct window_pane *);
-void	window_copy_cursor_jump_back(struct window_pane *);
-void	window_copy_cursor_jump_to(struct window_pane *, int);
-void	window_copy_cursor_jump_to_back(struct window_pane *, int);
-void	window_copy_cursor_next_word(struct window_pane *, const char *);
-void	window_copy_cursor_next_word_end(struct window_pane *, const char *);
-void	window_copy_cursor_previous_word(struct window_pane *, const char *);
-void	window_copy_scroll_up(struct window_pane *, u_int);
-void	window_copy_scroll_down(struct window_pane *, u_int);
-void	window_copy_rectangle_toggle(struct window_pane *);
-void	window_copy_move_mouse(struct mouse_event *);
-void	window_copy_drag_update(struct client *, struct mouse_event *);
-void	window_copy_drag_release(struct client *, struct mouse_event *);
+static const char *window_copy_key_table(struct window_pane *);
+static void	window_copy_command(struct window_pane *, struct client *,
+		    struct session *, struct args *, struct mouse_event *);
+static struct screen *window_copy_init(struct window_pane *);
+static void	window_copy_free(struct window_pane *);
+static void	window_copy_pagedown(struct window_pane *, int);
+static void	window_copy_next_paragraph(struct window_pane *);
+static void	window_copy_previous_paragraph(struct window_pane *);
+static void	window_copy_resize(struct window_pane *, u_int, u_int);
+
+static void	window_copy_redraw_selection(struct window_pane *, u_int);
+static void	window_copy_redraw_lines(struct window_pane *, u_int, u_int);
+static void	window_copy_redraw_screen(struct window_pane *);
+static void	window_copy_write_line(struct window_pane *,
+		    struct screen_write_ctx *, u_int);
+static void	window_copy_write_lines(struct window_pane *,
+		    struct screen_write_ctx *, u_int, u_int);
+
+static void	window_copy_scroll_to(struct window_pane *, u_int, u_int);
+static int	window_copy_search_compare(struct grid *, u_int, u_int,
+		    struct grid *, u_int, int);
+static int	window_copy_search_lr(struct grid *, struct grid *, u_int *,
+		    u_int, u_int, u_int, int);
+static int	window_copy_search_rl(struct grid *, struct grid *, u_int *,
+		    u_int, u_int, u_int, int);
+static void	window_copy_move_left(struct screen *, u_int *, u_int *);
+static void	window_copy_move_right(struct screen *, u_int *, u_int *);
+static int	window_copy_is_lowercase(const char *);
+static void	window_copy_search_jump(struct window_pane *, struct grid *,
+		    struct grid *, u_int, u_int, u_int, int, int, int);
+static void	window_copy_search(struct window_pane *, const char *, int,
+		    int);
+static void	window_copy_search_up(struct window_pane *, const char *, int);
+static void	window_copy_search_down(struct window_pane *, const char *,
+		    int);
+static void	window_copy_goto_line(struct window_pane *, const char *);
+static void	window_copy_update_cursor(struct window_pane *, u_int, u_int);
+static void	window_copy_start_selection(struct window_pane *);
+static int	window_copy_update_selection(struct window_pane *, int);
+static void   *window_copy_get_selection(struct window_pane *, size_t *);
+static void	window_copy_copy_buffer(struct window_pane *, const char *,
+		    void *, size_t);
+static void	window_copy_copy_pipe(struct window_pane *, struct session *,
+		    const char *, const char *);
+static void	window_copy_copy_selection(struct window_pane *, const char *);
+static void	window_copy_append_selection(struct window_pane *,
+		    const char *);
+static void	window_copy_clear_selection(struct window_pane *);
+static void	window_copy_copy_line(struct window_pane *, char **, size_t *,
+		    u_int, u_int, u_int);
+static int	window_copy_in_set(struct window_pane *, u_int, u_int,
+		    const char *);
+static u_int	window_copy_find_length(struct window_pane *, u_int);
+static void	window_copy_cursor_start_of_line(struct window_pane *);
+static void	window_copy_cursor_back_to_indentation(struct window_pane *);
+static void	window_copy_cursor_end_of_line(struct window_pane *);
+static void	window_copy_other_end(struct window_pane *);
+static void	window_copy_cursor_left(struct window_pane *);
+static void	window_copy_cursor_right(struct window_pane *);
+static void	window_copy_cursor_up(struct window_pane *, int);
+static void	window_copy_cursor_down(struct window_pane *, int);
+static void	window_copy_cursor_jump(struct window_pane *);
+static void	window_copy_cursor_jump_back(struct window_pane *);
+static void	window_copy_cursor_jump_to(struct window_pane *, int);
+static void	window_copy_cursor_jump_to_back(struct window_pane *, int);
+static void	window_copy_cursor_next_word(struct window_pane *,
+		    const char *);
+static void	window_copy_cursor_next_word_end(struct window_pane *,
+		    const char *);
+static void	window_copy_cursor_previous_word(struct window_pane *,
+		    const char *);
+static void	window_copy_scroll_up(struct window_pane *, u_int);
+static void	window_copy_scroll_down(struct window_pane *, u_int);
+static void	window_copy_rectangle_toggle(struct window_pane *);
+static void	window_copy_move_mouse(struct mouse_event *);
+static void	window_copy_drag_update(struct client *, struct mouse_event *);
 
 const struct window_mode window_copy_mode = {
 	.init = window_copy_init,
@@ -156,7 +162,7 @@ struct window_copy_mode_data {
 	char		 jumpchar;
 };
 
-struct screen *
+static struct screen *
 window_copy_init(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data;
@@ -229,7 +235,7 @@ window_copy_init_for_output(struct window_pane *wp)
 	    screen_size_y(&wp->base), UINT_MAX);
 }
 
-void
+static void
 window_copy_free(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -347,7 +353,7 @@ window_copy_pageup(struct window_pane *wp, int half_page)
 	window_copy_redraw_screen(wp);
 }
 
-void
+static void
 window_copy_pagedown(struct window_pane *wp, int half_page)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -395,7 +401,7 @@ window_copy_pagedown(struct window_pane *wp, int half_page)
 	window_copy_redraw_screen(wp);
 }
 
-void
+static void
 window_copy_previous_paragraph(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -412,7 +418,7 @@ window_copy_previous_paragraph(struct window_pane *wp)
 	window_copy_scroll_to(wp, 0, oy);
 }
 
-void
+static void
 window_copy_next_paragraph(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -432,7 +438,7 @@ window_copy_next_paragraph(struct window_pane *wp)
 	window_copy_scroll_to(wp, ox, oy);
 }
 
-void
+static void
 window_copy_resize(struct window_pane *wp, u_int sx, u_int sy)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -459,7 +465,7 @@ window_copy_resize(struct window_pane *wp, u_int sx, u_int sy)
 	window_copy_redraw_screen(wp);
 }
 
-const char *
+static const char *
 window_copy_key_table(struct window_pane *wp)
 {
 	if (options_get_number(wp->window->options, "mode-keys") == MODEKEY_VI)
@@ -467,7 +473,7 @@ window_copy_key_table(struct window_pane *wp)
 	return ("copy-mode");
 }
 
-void
+static void
 window_copy_command(struct window_pane *wp, struct client *c, struct session *s,
     struct args *args, struct mouse_event *m)
 {
@@ -803,7 +809,7 @@ window_copy_command(struct window_pane *wp, struct client *c, struct session *s,
 	wp->modeprefix = 1;
 }
 
-void
+static void
 window_copy_scroll_to(struct window_pane *wp, u_int px, u_int py)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -829,7 +835,7 @@ window_copy_scroll_to(struct window_pane *wp, u_int px, u_int py)
 	window_copy_redraw_screen(wp);
 }
 
-int
+static int
 window_copy_search_compare(struct grid *gd, u_int px, u_int py,
     struct grid *sgd, u_int spx, int cis)
 {
@@ -850,7 +856,7 @@ window_copy_search_compare(struct grid *gd, u_int px, u_int py,
 	return (memcmp(ud->data, sud->data, ud->size) == 0);
 }
 
-int
+static int
 window_copy_search_lr(struct grid *gd,
     struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last, int cis)
 {
@@ -875,7 +881,7 @@ window_copy_search_lr(struct grid *gd,
 	return (0);
 }
 
-int
+static int
 window_copy_search_rl(struct grid *gd,
     struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last, int cis)
 {
@@ -900,7 +906,7 @@ window_copy_search_rl(struct grid *gd,
 	return (0);
 }
 
-void
+static void
 window_copy_move_left(struct screen *s, u_int *fx, u_int *fy)
 {
 	if (*fx == 0) {	/* left */
@@ -912,7 +918,7 @@ window_copy_move_left(struct screen *s, u_int *fx, u_int *fy)
 		*fx = *fx - 1;
 }
 
-void
+static void
 window_copy_move_right(struct screen *s, u_int *fx, u_int *fy)
 {
 	if (*fx == screen_size_x(s) - 1) { /* right */
@@ -924,7 +930,7 @@ window_copy_move_right(struct screen *s, u_int *fx, u_int *fy)
 		*fx = *fx + 1;
 }
 
-int
+static int
 window_copy_is_lowercase(const char *ptr)
 {
 	while (*ptr != '\0') {
@@ -941,7 +947,7 @@ window_copy_is_lowercase(const char *ptr)
  * up, down otherwise. If wrap then go to begin/end of grid and try again if
  * not found.
  */
-void
+static void
 window_copy_search_jump(struct window_pane *wp, struct grid *gd,
     struct grid *sgd, u_int fx, u_int fy, u_int endline, int cis, int wrap,
     int direction)
@@ -984,7 +990,7 @@ window_copy_search_jump(struct window_pane *wp, struct grid *gd,
  * down. If moveflag is 0 then look for string at the current cursor position
  * as well.
  */
-void
+static void
 window_copy_search(struct window_pane *wp, const char *searchstr, int direction,
     int moveflag)
 {
@@ -1024,21 +1030,21 @@ window_copy_search(struct window_pane *wp, const char *searchstr, int direction,
 	screen_free(&ss);
 }
 
-void
+static void
 window_copy_search_up(struct window_pane *wp, const char *searchstr,
     int moveflag)
 {
 	window_copy_search(wp, searchstr, 0, moveflag);
 }
 
-void
+static void
 window_copy_search_down(struct window_pane *wp, const char *searchstr,
     int moveflag)
 {
 	window_copy_search(wp, searchstr, 1, moveflag);
 }
 
-void
+static void
 window_copy_goto_line(struct window_pane *wp, const char *linestr)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1054,7 +1060,7 @@ window_copy_goto_line(struct window_pane *wp, const char *linestr)
 	window_copy_redraw_screen(wp);
 }
 
-void
+static void
 window_copy_write_line(struct window_pane *wp, struct screen_write_ctx *ctx,
     u_int py)
 {
@@ -1092,7 +1098,7 @@ window_copy_write_line(struct window_pane *wp, struct screen_write_ctx *ctx,
 	}
 }
 
-void
+static void
 window_copy_write_lines(struct window_pane *wp, struct screen_write_ctx *ctx,
     u_int py, u_int ny)
 {
@@ -1102,7 +1108,7 @@ window_copy_write_lines(struct window_pane *wp, struct screen_write_ctx *ctx,
 		window_copy_write_line(wp, ctx, py);
 }
 
-void
+static void
 window_copy_redraw_selection(struct window_pane *wp, u_int old_y)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1119,7 +1125,7 @@ window_copy_redraw_selection(struct window_pane *wp, u_int old_y)
 	window_copy_redraw_lines(wp, start, end - start + 1);
 }
 
-void
+static void
 window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1133,7 +1139,7 @@ window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
 	screen_write_stop(&ctx);
 }
 
-void
+static void
 window_copy_redraw_screen(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1141,7 +1147,7 @@ window_copy_redraw_screen(struct window_pane *wp)
 	window_copy_redraw_lines(wp, 0, screen_size_y(&data->screen));
 }
 
-void
+static void
 window_copy_update_cursor(struct window_pane *wp, u_int cx, u_int cy)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1162,7 +1168,7 @@ window_copy_update_cursor(struct window_pane *wp, u_int cx, u_int cy)
 	}
 }
 
-void
+static void
 window_copy_start_selection(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1175,7 +1181,7 @@ window_copy_start_selection(struct window_pane *wp)
 	window_copy_update_selection(wp, 1);
 }
 
-int
+static int
 window_copy_update_selection(struct window_pane *wp, int may_redraw)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1227,7 +1233,7 @@ window_copy_update_selection(struct window_pane *wp, int may_redraw)
 	return (1);
 }
 
-void *
+static void *
 window_copy_get_selection(struct window_pane *wp, size_t *len)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1333,7 +1339,7 @@ window_copy_get_selection(struct window_pane *wp, size_t *len)
 	return (buf);
 }
 
-void
+static void
 window_copy_copy_buffer(struct window_pane *wp, const char *bufname, void *buf,
     size_t len)
 {
@@ -1349,7 +1355,7 @@ window_copy_copy_buffer(struct window_pane *wp, const char *bufname, void *buf,
 		free(buf);
 }
 
-void
+static void
 window_copy_copy_pipe(struct window_pane *wp, struct session *sess,
     const char *bufname, const char *arg)
 {
@@ -1376,7 +1382,7 @@ window_copy_copy_pipe(struct window_pane *wp, struct session *sess,
 	window_copy_copy_buffer(wp, bufname, buf, len);
 }
 
-void
+static void
 window_copy_copy_selection(struct window_pane *wp, const char *bufname)
 {
 	void	*buf;
@@ -1389,7 +1395,7 @@ window_copy_copy_selection(struct window_pane *wp, const char *bufname)
 	window_copy_copy_buffer(wp, bufname, buf, len);
 }
 
-void
+static void
 window_copy_append_selection(struct window_pane *wp, const char *bufname)
 {
 	char				*buf;
@@ -1423,7 +1429,7 @@ window_copy_append_selection(struct window_pane *wp, const char *bufname)
 		free(buf);
 }
 
-void
+static void
 window_copy_copy_line(struct window_pane *wp, char **buf, size_t *off, u_int sy,
     u_int sx, u_int ex)
 {
@@ -1483,7 +1489,7 @@ window_copy_copy_line(struct window_pane *wp, char **buf, size_t *off, u_int sy,
 	}
 }
 
-void
+static void
 window_copy_clear_selection(struct window_pane *wp)
 {
 	struct window_copy_mode_data   *data = wp->modedata;
@@ -1497,7 +1503,7 @@ window_copy_clear_selection(struct window_pane *wp)
 		window_copy_update_cursor(wp, px, data->cy);
 }
 
-int
+static int
 window_copy_in_set(struct window_pane *wp, u_int px, u_int py, const char *set)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1514,7 +1520,7 @@ window_copy_in_set(struct window_pane *wp, u_int px, u_int py, const char *set)
 	return (strchr(set, *ud->data) != NULL);
 }
 
-u_int
+static u_int
 window_copy_find_length(struct window_pane *wp, u_int py)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1540,7 +1546,7 @@ window_copy_find_length(struct window_pane *wp, u_int py)
 	return (px);
 }
 
-void
+static void
 window_copy_cursor_start_of_line(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1562,7 +1568,7 @@ window_copy_cursor_start_of_line(struct window_pane *wp)
 		window_copy_redraw_lines(wp, data->cy, 1);
 }
 
-void
+static void
 window_copy_cursor_back_to_indentation(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1585,7 +1591,7 @@ window_copy_cursor_back_to_indentation(struct window_pane *wp)
 		window_copy_redraw_lines(wp, data->cy, 1);
 }
 
-void
+static void
 window_copy_cursor_end_of_line(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1616,7 +1622,7 @@ window_copy_cursor_end_of_line(struct window_pane *wp)
 		window_copy_redraw_lines(wp, data->cy, 1);
 }
 
-void
+static void
 window_copy_other_end(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1654,7 +1660,7 @@ window_copy_other_end(struct window_pane *wp)
 	window_copy_redraw_screen(wp);
 }
 
-void
+static void
 window_copy_cursor_left(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1671,7 +1677,7 @@ window_copy_cursor_left(struct window_pane *wp)
 	}
 }
 
-void
+static void
 window_copy_cursor_right(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1695,7 +1701,7 @@ window_copy_cursor_right(struct window_pane *wp)
 	}
 }
 
-void
+static void
 window_copy_cursor_up(struct window_pane *wp, int scroll_only)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1745,7 +1751,7 @@ window_copy_cursor_up(struct window_pane *wp, int scroll_only)
 		window_copy_cursor_start_of_line(wp);
 }
 
-void
+static void
 window_copy_cursor_down(struct window_pane *wp, int scroll_only)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1787,7 +1793,7 @@ window_copy_cursor_down(struct window_pane *wp, int scroll_only)
 		window_copy_cursor_start_of_line(wp);
 }
 
-void
+static void
 window_copy_cursor_jump(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1812,7 +1818,7 @@ window_copy_cursor_jump(struct window_pane *wp)
 	}
 }
 
-void
+static void
 window_copy_cursor_jump_back(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1841,7 +1847,7 @@ window_copy_cursor_jump_back(struct window_pane *wp)
 	}
 }
 
-void
+static void
 window_copy_cursor_jump_to(struct window_pane *wp, int jump_again)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1866,7 +1872,7 @@ window_copy_cursor_jump_to(struct window_pane *wp, int jump_again)
 	}
 }
 
-void
+static void
 window_copy_cursor_jump_to_back(struct window_pane *wp, int jump_again)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1898,7 +1904,7 @@ window_copy_cursor_jump_to_back(struct window_pane *wp, int jump_again)
 	}
 }
 
-void
+static void
 window_copy_cursor_next_word(struct window_pane *wp, const char *separators)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -1940,7 +1946,7 @@ window_copy_cursor_next_word(struct window_pane *wp, const char *separators)
 		window_copy_redraw_lines(wp, data->cy, 1);
 }
 
-void
+static void
 window_copy_cursor_next_word_end(struct window_pane *wp,
     const char *separators)
 {
@@ -1992,7 +1998,7 @@ window_copy_cursor_next_word_end(struct window_pane *wp,
 }
 
 /* Move to the previous place where a word begins. */
-void
+static void
 window_copy_cursor_previous_word(struct window_pane *wp,
     const char *separators)
 {
@@ -2030,7 +2036,7 @@ window_copy_cursor_previous_word(struct window_pane *wp,
 		window_copy_redraw_lines(wp, data->cy, 1);
 }
 
-void
+static void
 window_copy_scroll_up(struct window_pane *wp, u_int ny)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -2060,7 +2066,7 @@ window_copy_scroll_up(struct window_pane *wp, u_int ny)
 	screen_write_stop(&ctx);
 }
 
-void
+static void
 window_copy_scroll_down(struct window_pane *wp, u_int ny)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -2100,7 +2106,7 @@ window_copy_scroll_position(struct window_pane *wp)
 	return (data->oy);
 }
 
-void
+static void
 window_copy_rectangle_toggle(struct window_pane *wp)
 {
 	struct window_copy_mode_data	*data = wp->modedata;
@@ -2117,7 +2123,7 @@ window_copy_rectangle_toggle(struct window_pane *wp)
 	window_copy_redraw_screen(wp);
 }
 
-void
+static void
 window_copy_move_mouse(struct mouse_event *m)
 {
 	struct window_pane	*wp;
@@ -2157,7 +2163,7 @@ window_copy_start_drag(struct client *c, struct mouse_event *m)
 	window_copy_redraw_screen(wp);
 }
 
-void
+static void
 window_copy_drag_update(__unused struct client *c, struct mouse_event *m)
 {
 	struct window_pane		*wp;
diff --git a/window.c b/window.c
index 2dd8f78fa..a2a53c066 100644
--- a/window.c
+++ b/window.c
@@ -60,15 +60,23 @@ static u_int	next_window_pane_id;
 static u_int	next_window_id;
 static u_int	next_active_point;
 
+static struct window_pane *window_pane_create(struct window *, u_int, u_int,
+		    u_int);
+static void	window_pane_destroy(struct window_pane *);
+
 static void	window_pane_set_watermark(struct window_pane *, size_t);
 
 static void	window_pane_read_callback(struct bufferevent *, void *);
 static void	window_pane_error_callback(struct bufferevent *, short, void *);
 
+static int	winlink_next_index(struct winlinks *, int);
+
 static struct window_pane *window_pane_choose_best(struct window_pane **,
 		    u_int);
 
 RB_GENERATE(windows, window, entry, window_cmp);
+RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
+RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
 
 int
 window_cmp(struct window *w1, struct window *w2)
@@ -76,16 +84,12 @@ window_cmp(struct window *w1, struct window *w2)
 	return (w1->id - w2->id);
 }
 
-RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
-
 int
 winlink_cmp(struct winlink *wl1, struct winlink *wl2)
 {
 	return (wl1->idx - wl2->idx);
 }
 
-RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
-
 int
 window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
 {
@@ -129,7 +133,7 @@ winlink_find_by_window_id(struct winlinks *wwl, u_int id)
 	return (NULL);
 }
 
-int
+static int
 winlink_next_index(struct winlinks *wwl, int idx)
 {
 	int	i;
@@ -731,7 +735,7 @@ window_pane_find_by_id(u_int id)
 	return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
 }
 
-struct window_pane *
+static struct window_pane *
 window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
 {
 	struct window_pane	*wp;
@@ -782,7 +786,7 @@ window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
 	return (wp);
 }
 
-void
+static void
 window_pane_destroy(struct window_pane *wp)
 {
 	window_pane_reset_mode(wp);