On Wed, Aug 02, 2023 at 06:32:22AM +0000, Dr. Matthias St. Pierre via openssl-users wrote:
> > #if OPENSSL_VERSION_NUMBER > 0x30100ff0L
>
> Kenneth, is it possible that you didn't include opensslv.h? IIRC, the
> expression evaluates to #if 0 > 0x30100ff0L if OPENSSL_VERSION_NUMBER
> is not defined.
>
Perhaps see also:
https://github.com/vdukhovni/postfix/blob/master/postfix/src/tls/tls_misc.c#L1358-L1409
Some older 0.x OpenSSL releases used a different encoding, but they're
long obsolete:
https://github.com/vdukhovni/postfix/blob/postfix-2.3/postfix/src/tls/tls_misc.c#L437-L521
--
Viktor.
