Ubuntu GSSAPI support in librdkafka.redist

[swythan]

Hi,

I just wanted to query the information here: https://github.com/edenhill/librdkafka/wiki/librdkafka.redist

File	SSL	GSSAPI/Kerberos	Distro	Min glibc version
runtimes/linux-x64/native/centos7-librdkafka.so	Dynamically linked	Dynamically linked	CentOS 7	>= 2.16
runtimes/linux-x64/native/librdkafka.so	Dynamically linked	Dynamically linked	Ubuntu 14.04	>= 2.16
runtimes/linux-x64/native/centos6-librdkafka.so	Builtin	No	CentOS 6	>= 2.12
runtimes/linux-x64/native/alpine-librdkafka.so	Builtin	No	Alpine	n/a

The way I read that table is that if I use the Confluent.Kafka NuGet package, I'll:

1. Get the librdkafka.redist package as a dependency
2. On Ubuntu it will load runtimes/linux-x64/native/librdkafka.so
3. That build of librdkafka.so has dynamically linked GSSAPI support

Obviously I'm writing because whilst the first two points are correct, the included lib doesn't have GSSAPI support and I need to compile my own librdkafka with GSSAPI support. Note that this isn't a huge surprise to me as we were already doing this for an older version of librdkafka, but the linked page made me think we'd missed something.

Am I reading the above table wrong? What does the "GSSAPI/Kerberos" column actually mean?

Thanks.