The CentOS 7 bird2 package has the libssh feature enabled from what I can tell, I don't think you should have to do anything special.

On Tue, May 5, 2020 at 1:07 PM Fabiano D'Agostino <fabiano.dagostino96@gmail.com> wrote:
Good evening,
Before I was using Ubuntu and to enable the RPKI protocol I did:
./configure --enable-libssh.

Now I am a new Centos7 user and I don't know really well how to enable RPKI. 

I downloaded bird2-2.0.6-1.el7.x86_64.rpm and then:
yum install bird2-2.0.6-1.el7.x86_64.rpm

But now how do I enable RPKI?

Thanks in advance,
Fabiano