I am trying to build tpcc-mysql from source. make prints the error msg “cannot find -lmysqlclient_r”.
I can see this lib in the /usr/local/mysql/lib, and my PATH is set correctly.
Distrib 5.5.28.
mysqlclient_r is the thread-safe library. Which Linux distribution are you using? I’m assuming that you are running linux 
Also, please check that mysql developer package is installed. For example the name of that package in Debian is libmysqlclient-dev.