commit https://github.com/vim/vim/commit/a8343c1808f2f268282f3030ce4adaf22e8ade54 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Feb 4 22:09:48 2016 +0100 patch 7.4.1260 Problem: The channel feature doesn't work on Win32 GUI. Solution: Use WSAGetLastError(). (Ken Takata)

/* 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);