Sync DH error codes with HEAD.

misleading/obsolete comment [from HEAD].

Also use FIPS EC methods unconditionally for now: might want to use them
only in FIPS mode or with a switch later.

Move compression, point2oct and oct2point functions into separate files.

Add a flags field to EC_METHOD.

Add a flag EC_FLAGS_DEFAULT_OCT to use the default compession and oct functions
(all existing methods do this). This removes dependencies from EC_METHOD while
keeping original functionality.

Backport from HEAD with minor changes.

New option to disable characteristic two fields in EC code.

Make no-ec2m work on Win32 build.

use of assembly language routines: rename the assembly language function
to the private_* variant unconditionally and perform tests from a small
C wrapper.

of assuming they will always suceed.

New function X509_ALGOR_set_md() to set X509_ALGOR (DigestAlgorithmIdentifier) from a digest algorithm (backport from HEAD).

Digest sign, verify operations are not redirected at this stage.

This is needed to handle FIPS redirection fully.

Not complete: ciphers with assembly language key setup are not
covered yet.

digest in use: this caused the PRF to fail for an odd premaster secret
length.

Call OPENSSL_init() in a few more places to make sure it is always called
at least once.

Initial cipher API redirection (incomplete).

Use FIPS API when initialising digests.

Sync header file evp.h and error codes with HEAD for necessary FIPS
definitions.

to libcrypto.a so linking to libcrypto.a works.