commit https://github.com/vim/vim/commit/17576a1e33d71b5602cee86bf220a806c8412605 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 20 20:05:44 2016 +0100 patch 7.4.1144 Problem: Can't build on several systems. Solution: Include float.h. (Christian Robinson, closes https://github.com/vim/vim/issues/570 https://github.com/vim/vim/issues/571)

/* 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 : */