Including kdf.h isn't enough, you also need evp.h
authortb <tb@openbsd.org>
Wed, 10 Jul 2024 07:57:37 +0000 (07:57 +0000)
committertb <tb@openbsd.org>
Wed, 10 Jul 2024 07:57:37 +0000 (07:57 +0000)
commit9bfea35468ce63b41637a634d12f7e7f9cbbf6b1
treece2ade784c567d527c0d43f8385823913a8db891
parent9dcfde637e550b5af81ce7ca781570782b8b1fb8
Including kdf.h isn't enough, you also need evp.h

It will be a cold day in hell before I see an OpenSSL manpage without
mistakes in it.
lib/libcrypto/man/EVP_PKEY_CTX_set_hkdf_md.3