openssl 1.1

[Oswald Buddenhagen]

i just attempted to build mutt against openssl 1.1, and got this:

mutt_ssl.c:636:18: error: storage size of ‘xsc’ isn’t known
   X509_STORE_CTX xsc;
                  ^~~

the reason is that openssl finally made many of their structures opaque,
so instantiating it won't work any more - instead, you need to use the
correct factory methods.

someone already has a patch? otherwise i may give it a shot.