Build for fc26 FTBFS with cfo buildroot since 2.066-1.
Builds OK with base buildroot.

OpenSSL versions:

openssl-1:1.0.2m-1.fc25 (passes)
openssl-1:1.1.0h-3.fc26 (fails)
openssl-1:1.1.0i-1.fc27 (passes)

Passes with perl-Net-SSLeay 1.81-1.fc26
Passes with perl-Net-SSLeay 1.85-9.0.cf.fc26
May be related to Net::SSLeay::SESSION_up_ref being available, changing behaviour of test
Fails  with perl-Net-SSLeay 1.86-0.3.09.cf.fc26
Fails  with perl-Net-SSLeay 1.88-1.0.cf.fc26

perl-IO-Socket-SSL-2.066-1 fails
perl-IO-Socket-SSL-2.062-1 fails
perl-IO-Socket-SSL-2.061-1 fails
perl-IO-Socket-SSL-2.060-1 passes
perl-IO-Socket-SSL-2.059-2 fails horribly