e_os2.h, this should fix WIN32 compilation issues and hopefully avoid
conflicts with other headers which may workaround ssize_t in different ways.

Submitted By: Jaroslav Imrich <jaroslav.imrich@disig.sk>

Add "missing" functions to get and set prompt constructor.

Notified by Gerardo Ganis <gerardo.ganis@cern.ch>

.DLL, in particular static build. The issue has been discussed in RT#1230
and later on openssl-dev, and mutually exclusive approaches were suggested.
This completes compromise solution suggested in RT#1230.
PR: 1230

casts.

PR: 1312
Submitted by: Oliver Tappe <zooey@hirschkaefer.de>
Reviewed by: Ulf Moeller

fatal exceptions.

PR: 1170
Submitted by: Yair Elharrar
Reviewed and edited by: Nils Larsch

first everywhere in crypto and skip stdio.h and string.h [because it
includes them].

[most importantly] put back dependencies accidentaly eliminated in
check-in #13342.

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.

Deprecate inclusion of crypto.h from ui.h.

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.

_POSIX_C_SOURCE needed in first place.

This is part of a large change submitted by Markus Friedl <markus@openbsd.org>

Use BUF_strlcat() instead of strcat().
Use BIO_snprintf() instead of sprintf().
In some cases, keep better track of buffer lengths.
This is part of a large change submitted by Markus Friedl <markus@openbsd.org>

PR: 780
Submitted by: Verdon Walker <VWalker@novell.com>
Reviewed by: Richard Levitte

Make sure the sigaction structure and fileno function are properly declared with an ANSI compiler on Solaris (and possibly others).

Submitted by: Thierry Lelegard <thierry.lelegard@canal-plus.fr>

PR: 461

PR: 456

PR: 456

might get closed...
Reported by Mark Daniel <Mark.Daniel@wasd.vsm.com.au>

PR: 381

I've covered all the memset()s I felt safe modifying, but may have missed some.

PR: 227