patch 8.2.2583: Vim9: cannot compare result of getenv() with null Commit: https://github.com/vim/vim/commit/7ad67d1150a1e48371d64e2919591c38b80e7cfc Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 10 16:08:26 2021 +0100 patch 8.2.2583: Vim9: cannot compare result of getenv() with null Problem: Vim9: cannot compare result of getenv() with null. Solution: Make the return type of getenv() "any". (closes https://github.com/vim/vim/issues/7943)

/* locale.c */
char_u *get_mess_lang(void);
void set_lang_var(void);
void init_locale(void);
void ex_language(exarg_T *eap);
void free_locales(void);
char_u *get_lang_arg(expand_T *xp, int idx);
char_u *get_locales(expand_T *xp, int idx);
/* vim: set ft=c : */