Adapt prototype of net_accept() for explicit size
diff --git a/programs/pkey/dh_server.c b/programs/pkey/dh_server.c
index 68a82e3..9ed6e36 100644
--- a/programs/pkey/dh_server.c
+++ b/programs/pkey/dh_server.c
@@ -173,7 +173,8 @@
         goto exit;
     }
 
-    if( ( ret = mbedtls_net_accept( listen_fd, &client_fd, NULL ) ) != 0 )
+    if( ( ret = mbedtls_net_accept( listen_fd, &client_fd,
+                                    NULL, 0, NULL ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_net_accept returned %d\n\n", ret );
         goto exit;