if $(EXHEADER) is empty.

Notified by many, solution suggested by Carson Gaspar <carson@taltos.org>

the Makefiles. NB: this commit is probably going to generate a huge posting
and it is highly uninteresting to read.

required includes back via the internal header and str_lib.c.

changes are the fallout). As this could break source code that doesn't
directly include headers for interfaces it uses, changes to recursive
includes are covered by the OPENSSL_NO_DEPRECATED symbol. It's better to
define this when building and using openssl, and then adapt code where
necessary - this is how to stay current. However the mechanism exists for
the lethargic.

Have the f parameter to _ctrl functions have the prototype (*)(void)
rather than (*)(), for the sake of C++ compilers.
Disable unimplemented functionality.

Notified by Goetz Babin-Ebell <goetz@shomitefo.de>

Slightly better check of attributes.  Now, mem_list_next can actually stop when the searched for key doesn't have it's attributes within the range of the checked key.

come back to me...

Kerberos 5 authentications.

authentication material) to the STORE functions.
Suggested by Götz Babin-Ebell <babin-ebell@trustcenter.de>.

Suggested by Götz Babin-Ebell <babin-ebell@trustcenter.de>.

crypto/store/README, crypto/store/store.h and crypto/store/str_locl.h.