void init_freetype ();
extern FT_Library freetype2_library;
-std::string freetype_error_string (FT_Error code);
+string freetype_error_string (FT_Error code);
SCM box_to_scheme_lines (Box b);
Box ly_FT_get_unscaled_indexed_char_dimensions (FT_Face const &face, size_t signed_idx);