-
-#include "sort-criteria.h"
-#include <data/procedure.h>
-#include <data/settings.h>
-#include <data/variable.h>
-#include <language/command.h>
-#include <language/lexer/lexer.h>
-#include <libpspp/alloc.h>
-#include <libpspp/message.h>
-#include <data/case-ordering.h>
-#include <math/sort.h>