commit https://github.com/vim/vim/commit/9a3b3311d26c990208150255ad65472bb4eefaa4 Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 1 20:20:49 2016 +0200 patch 7.4.1815 Problem: Compiler warnings for unused variables. (Ajit Thakkar) Solution: Add a dummy initialization. (Yasuhiro Matsumoto)

/* 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);