commit https://github.com/vim/vim/commit/863c1a9079fa340d663ccafb011729a29186d73e Author: Bram Moolenaar <Bram@vim.org> Date: Thu Mar 3 15:47:06 2016 +0100 patch 7.4.1479 Problem: No testfor ":loadplugin". Solution: Add a test. Fix how option is being set.

/* 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 : */