fix the warning:
warning: implicit declaration of function 'generic_gss_copy_oid_set' [-Wimplicit-function-declaration]

Upstream-Status: Pending
Signed-off-by: Yao Zhao <yao.zhao@windriver.com>

--- a/src/mglueP.h
+++ b/src/mglueP.h
@@ -447,6 +447,12 @@ OM_uint32 generic_gss_copy_oid
 	    gss_OID *		/* new_oid */
 	    );
 
+OM_uint32 generic_gss_copy_oid_set
+	   (OM_uint32 *minor_status,	/* minor_status */
+	    const gss_OID_set_desc * const oidset,	/* oid */
+	    gss_OID_set *new_oidset			/* new_oid */
+	   );
+
 OM_uint32 generic_gss_create_empty_oid_set
 	   (OM_uint32 *,	/* minor_status */
 	    gss_OID_set *	/* oid_set */