Install Librdkafka

Install the Apache Kafka C/C++ client library (librdkafka) to assist in configuring Fastcapa.

1. Specify an installation path for librdkafka:

   export RDK_PREFIX=/usr/local

   In the following example, the libs will actually be installed at /usr/local/lib; note that lib is appended to the prefix.
2. Download, build, and install librdkafka:

   wget https://github.com/edenhill/librdkafka/archive/v0.9.4.tar.gz  -O - | tar -xz
   cd librdkafka-0.9.4/
   ./configure --prefix=$RDK_PREFIX
   make 
   make install
   

3. Ensure that the installation s on the search path for the runtime shared library loader:

   export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$RDK_PREFIX/lib