+#include <data/procedure.h>
+#include <data/settings.h>
+#include <data/variable.h>
+#include <language/command.h>
+#include <language/lexer/lexer.h>
+#include <libpspp/message.h>
+#include <data/subcase.h>
+#include <math/sort.h>
+#include <sys/types.h>
+
+#include "xalloc.h"