patch 9.0.1403: unused variables and functionsv9.0.1403

Problem:    Unused variables and functions.
Solution:   Delete items and adjust #ifdefs. (Dominique Pellé, closes #12145)

13 files changed, 38 insertions, 26 deletions

diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index da2bf32f7..0bdeabf70 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -2994,7 +2994,7 @@ funcref({name} [, {arglist}] [, {dict}])
 		Can also be used as a |method|: >
 			GetFuncname()->funcref([arg])
 <
-				*function()* *partial* *E700* *E922* *E923*
+				*function()* *partial* *E700* *E923*
 function({name} [, {arglist}] [, {dict}])
 		Return a |Funcref| variable that refers to function {name}.
 		{name} can be the name of a user defined function or an
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index bb4a09607..51f1f16f9 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -340,7 +340,7 @@ function, the function does not need to be defined more than once: >
 
 Variable declarations with :var, :final and :const ~
 				*vim9-declaration* *:var* *E1079*
-				*E1017* *E1020* *E1054* *E1087* *E1108* *E1124*
+				*E1017* *E1020* *E1054* *E1087* *E1124*
 Local variables need to be declared with `:var`.  Local constants need to be
 declared with `:final` or `:const`.  We refer to both as "variables" in this
 section.
@@ -1664,8 +1664,8 @@ type, it can not be used in Vim9 script.
 
 			 *E1211* *E1217* *E1218* *E1219* *E1220* *E1221*
 			 *E1222* *E1223* *E1224* *E1225* *E1226* *E1227*
-			 *E1228* *E1238* *E1250* *E1251* *E1252* *E1253*
-			 *E1256* *E1297* *E1298* *E1301*
+			 *E1228* *E1238* *E1250* *E1251* *E1252* *E1256*
+			 *E1297* *E1298* *E1301*
 Types are checked for most builtin functions to make it easier to spot
 mistakes.
 
diff --git a/src/autocmd.c b/src/autocmd.c
index a409379b6..fe2b6cbb1 100644
--- a/src/autocmd.c
+++ b/src/autocmd.c
@@ -2519,6 +2519,7 @@ auto_next_pat(
     }
 }
 
+#if defined(FEAT_EVAL) || defined(PROTO)
 /*
  * Get the script context where autocommand "acp" is defined.
  */
@@ -2527,6 +2528,7 @@ acp_script_ctx(AutoPatCmd_T *acp)
 {
     return &acp->script_ctx;
 }
+#endif
 
 /*
  * Get next autocommand command.
diff --git a/src/charset.c b/src/charset.c
index 6b2790f0e..92567bf7b 100644
--- a/src/charset.c
+++ b/src/charset.c
@@ -907,6 +907,7 @@ vim_isfilec(int c)
     return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_FNAME_CHAR)));
 }
 
+#if defined(FEAT_SPELL) || defined(PROTO)
 /*
  * Return TRUE if 'c' is a valid file-name character, including characters left
  * out of 'isfname' to make "gf" work, such as comma, space, '@', etc.
@@ -916,6 +917,7 @@ vim_is_fname_char(int c)
 {
     return vim_isfilec(c) || c == ',' || c == ' ' || c == '@';
 }
+#endif
 
 /*
  * return TRUE if 'c' is a valid file-name character or a wildcard character
diff --git a/src/errors.h b/src/errors.h
index 445a9b8d6..644b1afb5 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -1182,8 +1182,10 @@ EXTERN char e_invalid_command[]
 	INIT(= N_("E476: Invalid command"));
 EXTERN char e_invalid_command_str[]
 	INIT(= N_("E476: Invalid command: %s"));
+#ifdef FEAT_EVAL
 EXTERN char e_invalid_command_str_expected_str[]
 	INIT(= N_("E476: Invalid command: %s, expected %s"));
+#endif
 EXTERN char e_no_bang_allowed[]
 	INIT(= N_("E477: No ! allowed"));
 EXTERN char e_dont_panic[]
@@ -1208,8 +1210,10 @@ EXTERN char e_pattern_not_found_str[]
 	INIT(= N_("E486: Pattern not found: %s"));
 EXTERN char e_argument_must_be_positive[]
 	INIT(= N_("E487: Argument must be positive"));
+#ifdef FEAT_PROP_POPUP
 EXTERN char e_argument_must_be_positive_str[]
 	INIT(= N_("E487: Argument must be positive: %s"));
+#endif
 EXTERN char e_trailing_characters[]
 	INIT(= N_("E488: Trailing characters"));
 EXTERN char e_trailing_characters_str[]
@@ -1370,10 +1374,12 @@ EXTERN char e_illegal_mode[]
 EXTERN char e_illegal_mouseshape[]
 	INIT(= N_("E547: Illegal mouseshape"));
 #endif
+#ifdef CURSOR_SHAPE
 EXTERN char e_digit_expected[]
 	INIT(= N_("E548: Digit expected"));
 EXTERN char e_illegal_percentage[]
 	INIT(= N_("E549: Illegal percentage"));
+#endif
 #ifdef FEAT_PRINTER
 EXTERN char e_missing_colon_3[]
 	INIT(= N_("E550: Missing colon"));
@@ -2039,14 +2045,12 @@ EXTERN char e_id_not_found_nr[]
 EXTERN char e_cannot_use_percent_with_float[]
 	// xgettext:no-c-format
 	INIT(= N_("E804: Cannot use '%' with Float"));
-#endif
 EXTERN char e_using_float_as_number[]
 	INIT(= N_("E805: Using a Float as a Number"));
 EXTERN char e_using_float_as_string[]
 	INIT(= N_("E806: Using a Float as a String"));
 EXTERN char e_expected_float_argument_for_printf[]
 	INIT(= N_("E807: Expected Float argument for printf()"));
-#if defined(FEAT_EVAL)
 EXTERN char e_number_or_float_required[]
 	INIT(= N_("E808: Number or Float required"));
 #endif
@@ -2270,8 +2274,10 @@ EXTERN char e_not_possible_to_change_sign_str[]
 EXTERN char e_cant_rename_viminfo_file_to_str[]
 	INIT(= N_("E886: Can't rename viminfo file to %s!"));
 #endif
+#if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3)
 EXTERN char e_sorry_this_command_is_disabled_python_side_module_could_not_be_loaded[]
 	INIT(= N_("E887: Sorry, this command is disabled, the Python's site module could not be loaded."));
+#endif
 EXTERN char e_nfa_regexp_cannot_repeat_str[]
 	INIT(= N_("E888: (NFA regexp) cannot repeat %s"));
 #ifdef FEAT_PROP_POPUP
@@ -2282,6 +2288,7 @@ EXTERN char e_number_required[]
 EXTERN char e_trailing_char_after_rsb_str_str[]
 	INIT(= N_("E890: Trailing char after ']': %s]%s"));
 #endif
+#ifdef FEAT_EVAL
 EXTERN char e_using_funcref_as_float[]
 	INIT(= N_("E891: Using a Funcref as a Float"));
 EXTERN char e_using_string_as_float[]
@@ -2290,6 +2297,7 @@ EXTERN char e_using_list_as_float[]
 	INIT(= N_("E893: Using a List as a Float"));
 EXTERN char e_using_dictionary_as_float[]
 	INIT(= N_("E894: Using a Dictionary as a Float"));
+#endif
 #ifdef FEAT_MZSCHEME
 EXTERN char e_sorry_this_command_is_disabled_the_mzscheme_racket_base_module_could_not_be_loaded[]
 	INIT(= N_("E895: Sorry, this command is disabled, the MzScheme's racket/base module could not be loaded."));
@@ -2330,9 +2338,9 @@ EXTERN char e_received_unknown_command_str[]
 EXTERN char e_not_an_open_channel[]
 	INIT(= N_("E906: Not an open channel"));
 #endif
+#ifdef FEAT_EVAL
 EXTERN char e_using_special_value_as_float[]
 	INIT(= N_("E907: Using a special value as a Float"));
-#ifdef FEAT_EVAL
 EXTERN char e_using_invalid_value_as_string_str[]
 	INIT(= N_("E908: Using an invalid value as a String: %s"));
 EXTERN char e_cannot_index_special_variable[]
@@ -2367,8 +2375,6 @@ EXTERN char e_io_file_requires_name_to_be_set[]
 #ifdef FEAT_EVAL
 EXTERN char e_invalid_callback_argument[]
 	INIT(= N_("E921: Invalid callback argument"));
-EXTERN char e_expected_dict[]
-	INIT(= N_("E922: Expected a dict"));
 EXTERN char e_second_argument_of_function_must_be_list_or_dict[]
 	INIT(= N_("E923: Second argument of function() must be a list or a dict"));
 #endif
@@ -2831,8 +2837,6 @@ EXTERN char e_nr_arguments_too_many[]
 	INIT(= N_("E1106: %d arguments too many"));
 EXTERN char e_string_list_dict_or_blob_required[]
 	INIT(= N_("E1107: String, List, Dict or Blob required"));
-EXTERN char e_item_not_found_str[]
-	INIT(= N_("E1108: Item not found: %s"));
 EXTERN char e_list_item_nr_is_not_list[]
 	INIT(= N_("E1109: List item %d is not a List"));
 EXTERN char e_list_item_nr_does_not_contain_3_numbers[]
@@ -3186,8 +3190,6 @@ EXTERN char e_list_dict_blob_or_string_required_for_argument_nr[]
 	INIT(= N_("E1251: List, Dictionary, Blob or String required for argument %d"));
 EXTERN char e_string_list_or_blob_required_for_argument_nr[]
 	INIT(= N_("E1252: String, List or Blob required for argument %d"));
-EXTERN char e_string_expected_for_argument_nr[]
-	INIT(= N_("E1253: String expected for argument %d"));
 EXTERN char e_cannot_use_script_variable_in_for_loop[]
 	INIT(= N_("E1254: Cannot use script variable in for loop"));
 #endif
@@ -3274,6 +3276,7 @@ EXTERN char e_could_not_clear_timeout_str[]
 	INIT(= N_("E1285: Could not clear timeout: %s"));
 EXTERN char e_could_not_set_timeout_str[]
 	INIT(= N_("E1286: Could not set timeout: %s"));
+#ifndef HAVE_TIMER_CREATE
 EXTERN char e_could_not_set_handler_for_timeout_str[]
 	INIT(= N_("E1287: Could not set handler for timeout: %s"));
 EXTERN char e_could_not_reset_handler_for_timeout_str[]
@@ -3281,6 +3284,7 @@ EXTERN char e_could_not_reset_handler_for_timeout_str[]
 EXTERN char e_could_not_check_for_pending_sigalrm_str[]
 	INIT(= N_("E1289: Could not check for pending SIGALRM: %s"));
 #endif
+#endif
 #ifdef FEAT_EVAL
 EXTERN char e_substitute_nesting_too_deep[]
 	INIT(= N_("E1290: substitute nesting too deep"));
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index f945b3805..e814431fa 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -3569,6 +3569,7 @@ one_letter_cmd(char_u *p, cmdidx_T *idx)
     return FALSE;
 }
 
+#if defined(FEAT_EVAL) || defined(PROTO)
 /*
  * Return TRUE if "cmd" starts with "123->", a number followed by a method
  * call.
@@ -3580,6 +3581,7 @@ number_method(char_u *cmd)
 
     return p > cmd && (p = skipwhite(p))[0] == '-' && p[1] == '>';
 }
+#endif
 
 /*
  * Find an Ex command by its name, either built-in or user.
diff --git a/src/move.c b/src/move.c
index 0550ef5d1..e8b86caf1 100644
--- a/src/move.c
+++ b/src/move.c
@@ -662,6 +662,7 @@ changed_window_setting_win(win_T *wp)
     redraw_win_later(wp, UPD_NOT_VALID);
 }
 
+#if defined(FEAT_PROP_POPUP) || defined(PROTO)
 /*
  * Call changed_window_setting_win() for every window containing "buf".
  */
@@ -675,6 +676,7 @@ changed_window_setting_buf(buf_T *buf)
 	if (wp->w_buffer == buf)
 	    changed_window_setting_win(wp);
 }
+#endif
 
 /*
  * Set wp->w_topline to a certain number.
@@ -744,6 +746,7 @@ changed_line_abv_curs_win(win_T *wp)
 						|VALID_CHEIGHT|VALID_TOPLINE);
 }
 
+#if defined(FEAT_PROP_POPUP) || defined(PROTO)
 /*
  * Display of line has changed for "buf", invalidate cursor position and
  * w_botline.
@@ -759,6 +762,7 @@ changed_line_display_buf(buf_T *buf)
 				|VALID_CROW|VALID_CHEIGHT
 				|VALID_TOPLINE|VALID_BOTLINE|VALID_BOTLINE_AP);
 }
+#endif
 
 /*
  * Make sure the value of curwin->w_botline is valid.
@@ -3573,7 +3577,6 @@ do_check_cursorbind(void)
     int		set_curswant = curwin->w_set_curswant;
     win_T	*old_curwin = curwin;
     buf_T	*old_curbuf = curbuf;
-    int		restart_edit_save;
     int		old_VIsual_select = VIsual_select;
     int		old_VIsual_active = VIsual_active;
 
@@ -3601,8 +3604,8 @@ do_check_cursorbind(void)
 
 	    // Make sure the cursor is in a valid position.  Temporarily set
 	    // "restart_edit" to allow the cursor to be beyond the EOL.
-	    restart_edit_save = restart_edit;
-	    restart_edit = TRUE;
+	    int restart_edit_save = restart_edit;
+	    restart_edit = 'a';
 	    check_cursor();
 
 	    // Avoid a scroll here for the cursor position, 'scrollbind' is
diff --git a/src/option.c b/src/option.c
index 870182b90..a2ab5c666 100644
--- a/src/option.c
+++ b/src/option.c
@@ -5246,15 +5246,6 @@ set_option_flag(int opt_idx, long_u flag)
 }
 
 /*
- * Clear a flag for the option at 'opt_idx'.
- */
-    void
-clear_option_flag(int opt_idx, long_u flag)
-{
-    options[opt_idx].flags &= ~flag;
-}
-
-/*
  * Returns TRUE if the option at 'opt_idx' is a global option
  */
     int
diff --git a/src/optionstr.c b/src/optionstr.c
index f88325cec..8aec38573 100644
--- a/src/optionstr.c
+++ b/src/optionstr.c
@@ -429,6 +429,8 @@ set_string_option_direct(
 # endif
 }
 
+#if defined(FEAT_PROP_POPUP) || \
+    (defined(FEAT_DIFF) && defined(FEAT_FOLDING)) || defined(PROTO)
 /*
  * Like set_string_option_direct(), but for a window-local option in "wp".
  * Blocks autocommands to avoid the old curwin becoming invalid.
@@ -452,6 +454,7 @@ set_string_option_direct_in_win(
     curbuf = curwin->w_buffer;
     unblock_autocmds();
 }
+#endif
 
 #if defined(FEAT_PROP_POPUP) || defined(PROTO)
 /*
diff --git a/src/os_unix.c b/src/os_unix.c
index 746bcff79..580196587 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -2434,6 +2434,7 @@ vim_is_iris(char_u *name)
 	    || STRCMP(name, "builtin_iris-ansi") == 0);
 }
 
+#if defined(VMS) || defined(PROTO)
 /*
  * Return TRUE if "name" is a vt300-like terminal name.
  */
@@ -2448,6 +2449,7 @@ vim_is_vt300(char_u *name)
 			     && vim_strchr((char_u *)"12345", name[2]) != NULL)
 	    || STRCMP(name, "builtin_vt320") == 0);
 }
+#endif
 
 /*
  * Insert user name in s[len].
diff --git a/src/proto/option.pro b/src/proto/option.pro
index 7b558eded..7ec531032 100644
--- a/src/proto/option.pro
+++ b/src/proto/option.pro
@@ -94,7 +94,6 @@ int get_option_value_strict(char_u *name, long *numval, char_u **stringval, int
 char_u *option_iter_next(void **option, int opt_type);
 long_u get_option_flags(int opt_idx);
 void set_option_flag(int opt_idx, long_u flag);
-void clear_option_flag(int opt_idx, long_u flag);
 int is_global_option(int opt_idx);
 int is_global_local_option(int opt_idx);
 int is_window_local_option(int opt_idx);
diff --git a/src/regexp.c b/src/regexp.c
index f18f33d62..33b36d11a 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -2948,6 +2948,7 @@ vim_regexec_string(
     return result > 0;
 }
 
+#if defined(FEAT_SPELL) || defined(FEAT_EVAL) || defined(FEAT_X11) || defined(PROTO)
 /*
  * Note: "*prog" may be freed and changed.
  * Return TRUE if there is a match, FALSE if not.
@@ -2968,6 +2969,7 @@ vim_regexec_prog(
     *prog = regmatch.regprog;
     return r;
 }
+#endif
 
 /*
  * Note: "rmp->regprog" may be freed and changed.
diff --git a/src/version.c b/src/version.c
index 2dca10db9..7055dc1a9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1403,
+/**/
     1402,
 /**/
     1401,