diff --git a/lib/basename.h b/lib/basename.h
new file mode 100644
index 00000000..90f76542
--- /dev/null
+++ b/lib/basename.h
@@ -0,0 +1,9 @@
+#ifndef PARAMS
+# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
+#  define PARAMS(Args) Args
+# else
+#  define PARAMS(Args) ()
+# endif
+#endif
+
+char *base_name PARAMS ((char const *name));