title: How to install c++ library on linux
body: <p>I am a noob in Linux environment.<br>
  I am using ubuntu 13.10 and I want to install <a href="http://arma.sourceforge.net/" rel="nofollow">Armadillo</a>. The readme file said that I should install three other libraries first, LAPACK, BLAS and ATLAS.<br></p>
  
  <p>I downloaded lapack-3.5.0, but I don't know how to install it(I only know apt-get install for installation). I found the installation steps inside the readme file as:<br><br></p>
  
  <ul>
  <li>LAPACK can be installed with make. Configuration have to be set in the
  make.inc file. A make.inc.example for a Linux machine running GNU compilers
  is given in the main directory. Some specific make.inc are also available in
  the INSTALL directory<br></li>
  <li>LAPACK includes also the CMAKE build. You will need to have CMAKE installed
  on your machine (CMAKE is available at <a href="http://www.cmake.org/" rel="nofollow">http://www.cmake.org/</a>). CMAKE will allow
  an easy installation on a Windows Machine<br><br></li>
  </ul>
  
  <p>I have installed make and cmake but what should I do next?<br>
  I would like to ask for a big picture about this kind(compile from source? I am not sure is this the correct discription) of installation concept and also steps for installation.<br>
  My understanding about installation is only come from installing a game in Windows that is specifying a path and then input install command and then finish. Is that similar to this case?</p>