title: RPostgreSQL installation Error - RPostgreSQL.so: undefined symbol: PQpass
body: <p>I am trying to install R-Package RPostgreSQL, but getting the following error,</p>
  <pre><code>Error in dyn.load(file, DLLpath = DLLpath, ...) : 
    unable to load shared object '/usr/lib64/R/library/RPostgreSQL/libs/RPostgreSQL.so':
    /usr/lib64/R/library/RPostgreSQL/libs/RPostgreSQL.so: undefined symbol: PQpass
  Error: loading failed
  Execution halted
  ERROR: loading failed
  * removing ‘/usr/lib64/R/library/RPostgreSQL’
  </code></pre>
  <p>I have <code>libpq</code> and <code>postgresql-dev</code> installed. All the library files are in the directory</p>
  <p><code>/usr/lib64/pgsql/</code> and all header files are in the directory</p>
  <p><code>/usr/include/pgsql/</code></p>
  <p>Postgre Version - <code>9.3.4</code>
  R Version - <code>3.0.2</code>
  Operating System - <code>CentOS-6.4</code></p>
  <p>I am missing some small thing, but unable to find out why this is happening.</p>
  <p>What am I doing wrong? How to correct this?</p>