02110-1301, USA. */
#include <config.h>
-#include <sys/types.h>
+
#include <assert.h>
#include <stdlib.h>
#include <limits.h>
-#include <libpspp/alloc.h>
+
+#include "sort-criteria.h"
+#include <data/procedure.h>
+#include <data/settings.h>
+#include <data/variable.h>
#include <language/command.h>
-#include <libpspp/message.h>
#include <language/lexer/lexer.h>
-#include <data/settings.h>
-#include "sort-criteria.h"
+#include <libpspp/alloc.h>
+#include <libpspp/message.h>
#include <math/sort.h>
-#include <data/variable.h>
+#include <sys/types.h>
#include "gettext.h"
#define _(msgid) gettext (msgid)