<openssl/evp.h> is now used (MD_DIGEST_LENGTH definitions!).
No need to include such headers directly in md_rand.c.

Submitted by: Travis Vitek <vitek@roguewave.com>

Changes to have OpenSSL compile on OS/2.
Contributed by "Brian Havard" <brianh@kheldar.apana.org.au>

Contributed by "Brian Havard" <brianh@kheldar.apana.org.au>

Fix memory leak when RAND is used: need to cleanup
RANDs ENGINE reference in ENGINE_cleanup().

Change all calls to low level digest routines in the library and
applications to use EVP. Add missing calls to HMAC_cleanup() and
don't assume HMAC_CTX can be copied using memcpy().

Note: this is almost identical to the patch submitted to openssl-dev
by Verdon Walker <VWalker@novell.com> except some redundant
EVP_add_digest_()/EVP_cleanup() calls were removed and some changes
made to avoid compiler warnings.

DEC C only have them declared that way (it doesn't really matter,
since the linker is case-insensitive by default)

symbols.

reachable.

It's completely untested for now.  To be done in the next few days.

For those, unless the environment variables RANDFILE or HOME are
defined (the default case!), RAND_file_name() will return NULL.
This change adds a default HOME for those platforms.

To add a default HOME for any platform, just define DEFAULT_HOME in
the proper place, wrapped in appropriate #ifdef..#endif, in e_os.h.

ENGINE code does not return a default, set an error.

Previously RAND_get_rand_method was returning a non-const pointer, but it
should be const. As with all other such cases, METHOD pointers are stored and
returned as "const". The only methods one should be able to alter are methods
"local" to the relevant code, in which case a non-const handle to the methods
should already exist.

This change has been forced by the constifying of the ENGINE code (before
which RAND_METHOD was the only method pointer in an ENGINE structure that was
not constant).

New cofiguration for Unixwre and SCO,with slightly better granularity.  Contributed by Tim Rice <tim@multitalents.net>

errors can be tolerated, hide the error from 'make'.
This gives shorter output both if ranlib fails and if
it works.

use _emit instead

Pointed out by Jeremy Cooper <jeremy@baymoo.org>