patch 8.1.0066: nasty autocommand causes using freed memory commit https://github.com/vim/vim/commit/c3ffc9b8d3015dc5280b297b4e3deb4f34944bd4 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 17 17:32:58 2018 +0200 patch 8.1.0066: nasty autocommand causes using freed memory Problem: Nasty autocommand causes using freed memory. (Dominique Pelle) Solution: Do not force executing autocommands if the value of 'syntax' or 'filetype' did not change.

/* if_tcl.c */
void vim_tcl_init(char *arg);
int tcl_enabled(int verbose);
void tcl_end(void);
void ex_tcl(exarg_T *eap);
void ex_tclfile(exarg_T *eap);
void ex_tcldo(exarg_T *eap);
void tcl_buffer_free(buf_T *buf);
void tcl_window_free(win_T *win);
/* vim: set ft=c : */