--- a/lib/vasprintf.h
+++ b/lib/vasprintf.h
@@ -1,5 +1,5 @@
 /* vsprintf with automatic memory allocation.
-   Copyright (C) 2002-2003 Free Software Foundation, Inc.
+   Copyright (C) 2002-2003, 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -49,6 +49,10 @@
    If the memory allocation succeeds, store the address of the string in
    *RESULT and return the number of resulting bytes, excluding the trailing
    NUL.  Upon memory allocation error, or some other error, return -1.  */
+#if REPLACE_VASPRINTF
+# define asprintf rpl_asprintf
+# define vasprintf rpl_vasprintf
+#endif
 extern int asprintf (char **result, const char *format, ...)
        __attribute__ ((__format__ (__printf__, 2, 3)));
 extern int vasprintf (char **result, const char *format, va_list args)