title: cmake & Qt5: qmake reported QT_INSTALL_LIBS as XXX but QtCore could not be found there
body: <p>I'm new to cmake, so having trouble building QCA on Ubuntu 12.04.</p>
  
  <p>I get the following when I run "cmake ." in the cloned QCA repository:</p>
  
  <blockquote>
    <p>Blockquote
    CMake Warning at /home/plunify/qt/cmake-2.8.12.1-Linux-i386/share/cmake-2.8/Modules/FindQt4.cmake:659 (message):
      /opt/Qt/5.1.0/gcc_64/bin/qmake reported QT_INSTALL_LIBS as
      "/opt/Qt/5.1.0/gcc_64/lib" but QtCore could not be found there.  Qt is NOT
      installed correctly for the target build environment.
    Call Stack (most recent call first):
      CMakeLists.txt:50 (find_package)</p>
  </blockquote>
  
  <p>I notice that it is still trying to use FindQt4, however I'm trying to build against Qt5. </p>
  
  <p>I downloaded the latest CMAKE (v2.8.12.1) to make sure it supports Qt5, and I'm also sure QCA (cloned from git clone git://anongit.kde.org/qca.git) supports Qt5 as I've built the same repository successfully against Qt 5.1.1 on Windows (where I just built directly from within Qt Creator).</p>
  
  <p>I've tried all the suggestions of related posts on Stack Overflow but none are working for me. </p>
  
  <p>Any ideas on how to fix it will be much appreciated...</p>