diff -dur glibc-cvs-2.9.orig/debug/readlink_chk.c glibc-cvs-2.9/debug/readlink_chk.c
--- glibc-cvs-2.9.orig/debug/readlink_chk.c	2005-03-01 01:41:15.000000000 +0100
+++ glibc-cvs-2.9/debug/readlink_chk.c	2009-06-01 10:59:37.000000000 +0200
@@ -25,7 +25,7 @@
 
 
 ssize_t
-__readlink_chk (const char *path, void *buf, size_t len, size_t buflen)
+__readlink_chk (const char *path, char *buf, size_t len, size_t buflen)
 {
   if (len > buflen)
     __chk_fail ();
diff -dur glibc-cvs-2.9.orig/debug/readlinkat_chk.c glibc-cvs-2.9/debug/readlinkat_chk.c
--- glibc-cvs-2.9.orig/debug/readlinkat_chk.c	2006-04-24 18:56:12.000000000 +0200
+++ glibc-cvs-2.9/debug/readlinkat_chk.c	2009-06-01 11:07:26.000000000 +0200
@@ -21,7 +21,7 @@
 
 
 ssize_t
-__readlinkat_chk (int fd, const char *path, void *buf, size_t len,
+__readlinkat_chk (int fd, const char *path, char *buf, size_t len,
 		  size_t buflen)
 {
   if (len > buflen)
