progress.hon commit make struct progress an opaque type (dc6a075)
   1#ifndef PROGRESS_H
   2#define PROGRESS_H
   3
   4struct progress;
   5
   6int display_progress(struct progress *progress, unsigned n);
   7struct progress *start_progress(const char *title, unsigned total);
   8struct progress *start_progress_delay(const char *title, unsigned total,
   9                                       unsigned percent_treshold, unsigned delay);
  10void stop_progress(struct progress **progress);
  11
  12#endif