#include <stdio.h>
#include <sys/types.h>
-#include "posixstat.h"
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+extern void exit();
+#endif
#if defined (READLINE_LIBRARY)
+# include "posixstat.h"
# include "readline.h"
# include "history.h"
#else
+# include <sys/stat.h>
# include <readline/readline.h>
# include <readline/history.h>
#endif