diff --git a/lib/savedir.h b/lib/savedir.h
new file mode 100644
index 00000000..89be04d0
--- /dev/null
+++ b/lib/savedir.h
@@ -0,0 +1,15 @@
+#if !defined SAVEDIR_H_
+# define SAVEDIR_H_
+
+# ifndef PARAMS
+#  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
+#   define PARAMS(Args) Args
+#  else
+#   define PARAMS(Args) ()
+#  endif
+# endif
+
+char *
+savedir PARAMS ((const char *dir, off_t name_size));
+
+#endif