diff --git a/security/courier-authlib/files/patch-authvchkpw.c b/security/courier-authlib/files/patch-authvchkpw.c
new file mode 100644
index 000000000000..b726354b1b0d
--- /dev/null
+++ b/security/courier-authlib/files/patch-authvchkpw.c
@@ -0,0 +1,12 @@
+--- authvchkpw.c.orig	Thu May 31 07:04:07 2007
++++ authvchkpw.c	Thu May 31 07:03:44 2007
+@@ -28,6 +28,9 @@
+         int (*callback)(struct authinfo *, void *),
+                         void *arg);
+ 
++static int auth_vchkpw_login(const char *service, char *authdata,
++        int (*callback_func)(struct authinfo *, void *), void *callback_arg);
++
+ extern FILE *authvchkpw_file(const char *, const char *);
+ 
+ struct callback_info {