Don't jump through null ovec for RTP.

diff --git a/main.c b/main.c
index cca0d9a13c10f74d9b40c4c94415cf77bc5dfa20..fc31c69d644237f446dff82c8007046af380560d 100644 (file)
--- a/main.c
+++ b/main.c
@@ -637,7 +637,7 @@ main(int argc, char *argv[])
                        fatal ("Couldn't install the exit signal handler.\n");
                }
 
-               if (ovecs->position_ops.wr_init) {
+               if (ovecs && ovecs->position_ops.wr_init) {
                        ovecs->position_ops.wr_init(ofname);
                }