Build failed in Jenkins: pulsar-website-build #527

See Changes: [sanjeevrk] Cleanup consumer subscriptions and fix graceful shutdown for [github] Add Windowfunction interface to functions api (#3324) [github] Enable stats to be recovered by Kubernetes runti

Slack digest for #dev - 2019-01-15

2019-01-15 00:35:45 UTC - Vardhman: @Vardhman has joined the channel 2019-01-15 00:43:41 UTC - Vardhman: Hi I am trying to use the pulsar/pulsar-client-cpp for a project written in C. I have a CMakeList.txt file that has a `add_subdirectory(pulsar/pulsar-client-cpp)` to compile the pulsar-c