+#include <data/procedure.h>
+#include <data/variable.h>
+#include <language/command.h>
+#include <language/lexer/lexer.h>
+#include <language/lexer/variable-parser.h>
+#include <libpspp/message.h>
+#include <libpspp/str.h>
+
+#include "minmax.h"
+#include "xalloc.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)