commit https://github.com/vim/vim/commit/119d4693e06e68d4f099aa7287e375ae3d265fd0 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 5 21:21:24 2016 +0100 patch 7.4.1494 Problem: clr_history() does not work properly. Solution: Increment hisptr. Add a test. (Yegappan Lakshmanan)

/* 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);