Index: ifeffit-1.2.11d/src/cmdline/iff_shell.c
===================================================================
--- ifeffit-1.2.11d.orig/src/cmdline/iff_shell.c
+++ ifeffit-1.2.11d/src/cmdline/iff_shell.c
@@ -354,7 +354,7 @@ void initialize_readline () {
   /* Allow conditional parsing of the ~/.inputrc file. */
   rl_readline_name = "Ifeffit";
   /* Tell the completer that we want a crack first. */
-  rl_attempted_completion_function = (CPPFunction *)ifeffit_completion;
+  rl_attempted_completion_function = (rl_completion_func_t *)ifeffit_completion;
 }
 
 /* Attempt to complete on the contents of TEXT.  START and END bound the