commit https://github.com/vim/vim/commit/6463ca229cb9412581419497924c85fcbfc854ab Author: Bram Moolenaar <Bram@vim.org> Date: Sat Feb 13 17:04:46 2016 +0100 patch 7.4.1310 Problem: Jobs don't open a channel. Solution: Create pipes and add them to the channel. Add ch_logfile(). Only Unix for now.

/* 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);