Conditionally enable ssl_socket methods that use the deprecated OpenSSL
ENGINE APIs. The APIs are enabled when the OpenSSL being compiled
against has the ENGINE APIs enabled. In addition these APIs can be
disabled by passing -DENABLE_SSL_ENGINE_API=OFF to CMake at build-time.
Conditionally enable ssl_socket methods that use the deprecated OpenSSL ENGINE APIs. The APIs are enabled when the OpenSSL being compiled against has the ENGINE APIs enabled. In addition these APIs can be disabled by passing -DENABLE_SSL_ENGINE_API=OFF to CMake at build-time.
Fixed: alanxz/rabbitmq-c#795 Fixed: alanxz/rabbitmq-c#713
Signed-off-by: GitHub noreply@github.com