title: Rgdal installation failed on ubuntu 16.04
body: <p>I have been trying to install <code>rgdal</code> from RStudio Version 1.0.44 on ubuntu 16.04 then I was getting the <strong>gdal-config not found</strong> error. I resolved this by installing the <code>libgdal1-dev</code> &amp; <code>libproj</code> packages but now i'm getting the following  error. Someone help me resolve this.</p>
  
  <pre><code>Error in dyn.load(file, DLLpath = DLLpath, ...) : 
  unable to load shared object '/home/hetch/R/x86_64-pc-linux-gnu-library/3.3/rgdal/libs/rgdal.so':
  /usr/lib/x86_64-linux-gnu/libgeos_c.so.1: undefined symbol:_ZN4geos4geom18IntersectionMatrixC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE 
  Error: loading failed
  Execution halted
  ERROR: loading failed
  * removing ‘/home/hetch/R/x86_64-pc-linux-gnu-library/3.3/rgdal’
  Warning in install.packages :
  installation of package ‘rgdal’ had non-zero exit status
  </code></pre>