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)

/* auto/if_perl.c */
int perl_enabled(int verbose);
void perl_end(void);
void msg_split(char_u *s, int attr);
void perl_win_free(win_T *wp);
void perl_buf_free(buf_T *bp);
void ex_perl(exarg_T *eap);
void do_perleval(char_u *str, typval_T *rettv);
void ex_perldo(exarg_T *eap);