commit https://github.com/vim/vim/commit/927030af23982a70580178e32806cd3638ce6e5b Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 15 18:23:55 2016 +0100 patch 7.4.1576 Problem: Write error of viminfo file is not handled properly. (Christian Neukirchen) Solution: Check the return value of fclose(). (closes https://github.com/vim/vim/issues/682)

/* 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);