Awesome, that did the trick!
Many thanks.

Well, I still get a "Missing object" error in libaacs, and I'm not sure how to
fix it. But the patch is in, so I think the bug can be closed.

It seems the problem is around the code here:
http://git.videolan.org/?p=libaacs.git;a=blob;f=src/libaacs/crypto.c;h=4db7641ec8e9af3cdf056562de39a39e3fa0c09b;hb=HEAD#l308

And the error I get when I try to scan a disc with aacs_info is as follows:
crypto.c:587: _aacs_verify: gcry_pk_verify failed. error was: Missing item in object
aacs.c:1502: invalid signature in cached hrl

If you have any hints, I'd be very grateful. Thanks!

I encountered this bug when I tried to use libgcrypt-HEAD with libaacs.
libaacs uses ECDSA, and when it calls gcry_pk_verify(), I get GPG_ERR_NO_OBJ
because the sexp was constructed without the h parameter.