Index: Modules/readline.c
===================================================================
--- Modules/readline.c	(revision 78055)
+++ Modules/readline.c	(working copy)
@@ -38,9 +38,11 @@
 #if defined(_RL_FUNCTION_TYPEDEF)
 extern char **completion_matches(char *, rl_compentry_func_t *);
 #else
+#if !defined(__APPLE__)
 extern char **completion_matches(char *, CPFunction *);
 #endif
 #endif
+#endif
 
 #ifdef __APPLE__
 /*