commit https://github.com/vim/vim/commit/a8e691d44937fd9d72dcbad2b8c673682277f13d Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 7 15:19:26 2016 +0200 patch 7.4.2176 Problem: #ifdefs in main() are complicated. Solution: Always define vim_main2(). Move params to the file level. (suggested by Ken Takata)

/* if_ruby.c */
int ruby_enabled(int verbose);
void ruby_end(void);
void ex_ruby(exarg_T *eap);
void ex_rubydo(exarg_T *eap);
void ex_rubyfile(exarg_T *eap);
void ruby_buffer_free(buf_T *buf);
void ruby_window_free(win_T *win);
void vim_ruby_init(void *stack_start);
/* vim: set ft=c : */