On Sat, 22 Jul 2017 12:10:34 +0300 Eli Zaretskii <eliz@gnu.org> wrote: 

EZ> Ping!  Anything further on this?  Anything I can do to help debugging
EZ> this problem?

Hi Eli,

I had to travel urgently and had trouble testing this on my Mac OS X
laptop; it took me a while to build all the pieces. Sorry for the delay.

Using a Ubuntu 17.04 Docker image, I compiled GnuTLS from source (a
GnuTLS 3.4.15 dev package was not available) and all the GnuTLS Emacs
tests passed in master against it (see summary and Dockerfile attached
below). A few of the Emacs tests failed in master, but that was not
related to GnuTLS.

Can you give me a recipe to reproduce the problem with your distribution
and packages? It may be irreproducible in Docker, or I tested
incorrectly, or maybe there's something specific about the optimizations
of the packaged libraries.

Thanks!
Ted

root@611652fe3513:/tmp/emacs/test/lisp/net# grep GNUTLS_VERSION\  /usr/include/gnutls/gnutls.h
#define GNUTLS_VERSION "3.4.15"
root@611652fe3513:/tmp/emacs/test/lisp/net# grep passed gnutls-tests.log
   passed  1/7  test-gnutls-000-availability
   passed  2/7  test-gnutls-000-data-extractions
   passed  3/7  test-gnutls-001-hashes-internal-digests
   passed  4/7  test-gnutls-002-hashes-digests
   passed  5/7  test-gnutls-003-hashes-hmacs
   passed  6/7  test-gnutls-004-symmetric-ciphers
   passed  7/7  test-gnutls-005-aead-ciphers
root@611652fe3513:/tmp/emacs/test/lisp/net# ../../../src/emacs --version
GNU Emacs 26.0.50