title: How to get my makefile-based C++ project to work with QT library shortest and simplest way?
body: <p>I have an <strong>Makefile</strong>-based C++ project.
  I use <strong>Eclipse</strong> as and IDE (on Ubuntu) and it works perfectly with Makefile. I write Makefile myself by hand, so I don't need any things that can generate it automatically. </p>
  
  <p>I heard that <strong>QT</strong> uses its own <code>qmake</code> buld system, which makes Makefile from .pro project file:</p>
  
  <blockquote>
    <p>In addition to Qt Creator, Qt provides qmake, a cross-platform build script generation tool that automates the generation of Makefiles for development projects across different platforms.</p>
  </blockquote>
  
  <p>Eclipse QT plugin description says:</p>
  
  <blockquote>
    <p>The Qt Eclipse Integration seamlessly integrates the whole Qt development workflow:
    Pure qmake based project management (not imposing Eclipse specific project file formats) with a .pro file importer and graphical project editor</p>
  </blockquote>
  
  <p>It seems like if I want to use Qt, it absolutely has to use its own  <code>qmake</code> build system, which will be generating makefiles. I don't like that idea because my Makefiles are too complex, I don't want to put a lot of effort to figuring out how to translate my whole Makefile to .pro file or similar. </p>
  
  <ol>
  <li>Is there any way to use Qt just like any other library, installing it into system, including header files in my code and giving a linker path to include it? Without changing whole build system, i.e. sticking with manually edited makefile and not using QtEditor, but Eclipse as before? I don't need any GUI-related Qt stuff.  </li>
  <li>Do I absolutely have to use <code>qmake</code>? Can I just use <code>make</code> command only as before? </li>
  </ol>