EVP_DigestSignUpdate missing from libcrypto

[Matt Caswell]

On 16/09/2020 15:23, Sage Gerard wrote:
> I'm okay with using EVP_DigestSign, but both that and online materials
> presume EVP_DigestSignUpdate's availability, and the source code does
> not seem to have a directive to exclude the signature or implementation
> at first glance. What can explain the symbol's absense?

Its a macro:

# define EVP_DigestSignUpdate(a,b,c)     EVP_DigestUpdate(a,b,c)

So, the symbol in libcrypto.so is called EVP_DigestUpdate.

Note that this isn't the case in OpenSSL 3.0. It is a full symbol in its
 own right there.

Matt