# File lib/ruby_to_ansi_c.rb, line 83
  def preamble
    "// BEGIN METARUBY PREAMBLE
#include <ruby.h>
#define RB_COMPARE(x, y) (x) == (y) ? 0 : (x) < (y) ? -1 : 1
typedef char * str;
#define case_equal_long(x, y) ((x) == (y))
// END METARUBY PREAMBLE
" + self.prototypes.join('')
  end