/home/franklin/rockbox/apps/plugins/xracer/graphics.h:47:45: warning: 'struct road_segment' declared inside parameter list
 void render(struct camera_t *camera, struct road_segment *road, unsigned int road_length);
                                             ^
/home/franklin/rockbox/apps/plugins/xracer/graphics.h:47:45: warning: its scope is only this definition or declaration, which is probably not what you want
/home/franklin/rockbox/apps/plugins/xracer/graphics.c:219:6: error: conflicting types for 'render'
 void render(struct camera_t *camera, struct road_segment *road, unsigned int road_length)
      ^
In file included from /home/franklin/rockbox/apps/plugins/xracer/road.h:27:0,
                 from /home/franklin/rockbox/apps/plugins/xracer/graphics.c:26:
/home/franklin/rockbox/apps/plugins/xracer/graphics.h:47:6: note: previous declaration of 'render' was here
 void render(struct camera_t *camera, struct road_segment *road, unsigned int road_length);
      ^