commit 0268ff3af3d598e18454a3ce1c510f411427b6c0
author Dominique Pellé <dominique.pelle@gmail.com> Sun Jul 28 21:12:20 2024 +0200
committer Christian Brabandt <cb@256bit.org> Sun Jul 28 21:12:20 2024 +0200
tree a30035da8078b82f4a528aa1c855af4d363af3c9
parent 073cb02cb5fd3209a9f0ff65fa2dc748c792792f

patch 9.1.0633: Compilation warnings with `-Wunused-parameter`

Problem:  Compilation warnings with `-Wunused-parameter`
Solution: Add the `UNUSED` macro where needed, and remove some
          superfluous ones (Dominique Pellé)

Change fixes these kind of warnings when building without the channel
feature:

```
eval.c:6122:15: warning: unused parameter ‘tv’ [-Wunused-parameter]
     typval_T *tv,
               ^
eval.c:6123:14: warning: unused parameter ‘tofree’ [-Wunused-parameter]
     char_u **tofree,
              ^
eval.c:6124:13: warning: unused parameter ‘numbuf’ [-Wunused-parameter]
     char_u *numbuf,
             ^
eval.c:6125:10: warning: unused parameter ‘composite_val’ [-Wunused-parameter]
     int  composite_val)
```

closes: #15378

Signed-off-by: Dominique Pellé <dominique.pelle@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/undo.c

diff --git a/src/undo.c b/src/undo.c
index 1cd8912..8c2783a 100644
--- a/src/undo.c
+++ b/src/undo.c
@@ -3683,7 +3683,7 @@
  * "undofile(name)" function
  */
     void
-f_undofile(typval_T *argvars UNUSED, typval_T *rettv)
+f_undofile(typval_T *argvars, typval_T *rettv)
 {
     if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)
 	return;
@@ -3738,7 +3738,7 @@
  * "undotree(expr)" function
  */
     void
-f_undotree(typval_T *argvars UNUSED, typval_T *rettv)
+f_undotree(typval_T *argvars, typval_T *rettv)
 {
     if (in_vim9script() && check_for_opt_buffer_arg(argvars, 0) == FAIL)
 	return;