patch 8.2.4142: build failure with normal features without persistent undo Commit: https://github.com/vim/vim/commit/b4868eddd9cdc7086c88a7a3699dd435d34ae904 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 19 11:24:40 2022 +0000 patch 8.2.4142: build failure with normal features without persistent undo Problem: Build failure with normal features without persistent undo. Solution: Adjust #ifdef. (closes https://github.com/vim/vim/issues/9557)

/* sound.c */
int has_any_sound_callback(void);
int has_sound_callback_in_queue(void);
void invoke_sound_callback(void);
void f_sound_playevent(typval_T *argvars, typval_T *rettv);
void f_sound_playfile(typval_T *argvars, typval_T *rettv);
void f_sound_stop(typval_T *argvars, typval_T *rettv);
void f_sound_clear(typval_T *argvars, typval_T *rettv);
void sound_free(void);
/* vim: set ft=c : */