Compilation issue with no support for OPENSSL_HAS_ECC

[Santhosh Kumar]

Hi All,

When I tried to compile OpenSSH portable version 8.0 from source without
OPENSSL_HAS_ECC defined, caught undefined reference error to
kex_ecdh_keypair(), kex_ecdh_dec(), kex_ecdh_enc() functions in kexgen.c;
All those functions needed to be under predefined macro OPENSSL_HAS_ECC
because KEX_ECDH_SHA2 exists only under this macro.

Raised a pull-request for Portable version.
https://github.com/openssh/openssh-portable/pull/128