title: OpenCV_FOUND to FALSE so package "OpenCV" is considered to be NOT FOUND
body: <p>I am having problems at the moment trying to get my cmake to see my opencv.
  I have installed opencv and can run the some of the sample problems and some give the same error as the the error I get in my cmake file (when running the sample programs through terminal)</p>
  
  <p>I have tried to change the environment variable path as described in 
  <a href="http://answers.opencv.org/question/35125/cmake-linking-error-opencv_found-to-false-ubuntu/" rel="nofollow noreferrer">http://answers.opencv.org/question/35125/cmake-linking-error-opencv_found-to-false-ubuntu/</a></p>
  
  <p>My bashrc file now looks like</p>
  
  <pre><code>CMAKE_PREFIX_PATH=/home/durham/Desktop/OpenCV/opencv-2.4.9:$CMAKE_PREFIX_PATH
  
  CPATH=/home/durham/Desktop/OpenCV/opencv-2.4.9/include:$CPATH LD_LIBRARY_PATH=/home/durham/Desktop/OpenCV/opencv-2.4.9/lib:$LD_LIBRARY_PATH PATH=/home/durham/Desktop/OpenCV/opencv-2.4.9bin:$PATH
  
  PKG_CONFIG_PATH=/home/durham/Desktop/OpenCV/opencv-2.4.9/lib/pkgconfig:$PKG_CONFIG_PATH
  
  PYTHONPATH=/home/durham/Desktop/OpenCV/opencv-2.4.9/lib/python2.7/dist-packages:$PYTHONPATH
  </code></pre>
  
  <p>and the contents of /etc/ld.so.conf are </p>
  
  <pre><code>include /etc/ld.so.conf.d/*.conf 
  include /home/durham/Desktop/OpenCV/opencv-2.4.9
  </code></pre>
  
  <p>The cmake file I am trying to run looks like this</p>
  
  <pre><code>cmake_minimum_required(VERSION 2.6)
  
  if(POLICY CMP0020)   cmake_policy(SET CMP0020 NEW) endif(POLICY CMP0020)
  
  SET(CMAKE_VERBOSE_MAKEFILE TRUE)  SET(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/config)
  
  ADD_DEFINITIONS(-DQT_THREAD_SUPPORT -D_REENTRANT -DQT_NO_DEBUG
  -DIQRMODULE)
  
  SET(QT_MT_REQUIRED TRUE) find_package(Qt5Widgets) FIND_PACKAGE(OpenCV REQUIRED)
  
  
  IF(NOT DEFINED IQR_INCLUDE_DIR)   set (IQR_INCLUDE_DIR "/usr/include/iqr") #default for linux ENDIF(NOT DEFINED IQR_INCLUDE_DIR)
  
  IF(NOT EXISTS ${IQR_INCLUDE_DIR})   message(STATUS "not exists IQR_INCLUDE_DIR: ${IQR_INCLUDE_DIR}")   set (IQR_INCLUDE_DIR $ENV{IQR_INCLUDE_DIR} CACHE PATH "" FORCE)   IF(NOT EXISTS ${IQR_INCLUDE_DIR})
      message(STATUS "IQR_INCLUDE_DIR set to ${IQR_INCLUDE_DIR}")
      message(FATAL_ERROR "Please specify iqr include directory using IQR_INCLUDE_DIR env. variable")   ENDIF(NOT EXISTS ${IQR_INCLUDE_DIR}) ENDIF(NOT EXISTS ${IQR_INCLUDE_DIR})
  
  IF(WIN32)   IF(NOT DEFINED IQR_LIB_DIR)
      set (IQR_LIB_DIR $ENV{IQR_LIB_DIR} CACHE PATH "" FORCE)   ENDIF(NOT DEFINED IQR_LIB_DIR)
  
    IF(NOT EXISTS ${IQR_LIB_DIR})
      message(FATAL_ERROR "Please specify phidgets include directory using IQR_LIB_DIR env. variable")   ENDIF(NOT EXISTS ${IQR_LIB_DIR}) ENDIF(WIN32)
  
  
  
  
  SET(libSrc
      moduleArDroneBottomCamera.cpp
      )
  
  INCLUDE_directories(   ${CMAKE_CURRENT_SOURCE_DIR}    ${IQR_INCLUDE_DIR}   ${QT_INCLUDE_DIR}   ${OPENCV_INCLUDE_DIR}   ardrone_sdk/   ardrone_sdk/VP_SDK/   ardrone_sdk/VLIB/Stages/   ardrone_sdk/VP_SDK/VP_Os/   ardrone_sdk/VP_SDK/VP_Os/linux/   ardrone_sdk/VP_SDK/VP_Stages/ )
  
  ADD_SUBDIRECTORY(ardrone_sdk)
  
  ADD_LIBRARY(moduleArDroneBottomCamera SHARED ${libSrc})
  
  IF(WIN32)   set(IQR_LIBS "${IQR_LIB_DIR}/libIqrItem.dll") ENDIF(WIN32)
  
  
  TARGET_LINK_LIBRARIES (moduleArDroneBottomCamera   ${OPENCV_LIBRARIES} pc_ardrone   ${QT_LIBRARIES}   ${IQR_LIBS}   )
  
  qt5_use_modules(moduleArDroneBottomCamera Core Widgets Network)
  
  
  SET_TARGET_PROPERTIES(moduleArDroneBottomCamera PROPERTIES PREFIX "")
  
  IF(UNIX)   set (IQR_INSTALL_DIR $ENV{HOME}) ENDIF(UNIX)
  
  IF(WIN32)   set (IQR_INSTALL_DIR $ENV{USERPROFILE}) ENDIF(WIN32)
  
  
  INSTALL(TARGETS moduleArDroneBottomCamera    LIBRARY DESTINATION ${IQR_INSTALL_DIR}/iqr/lib/Modules    RUNTIME DESTINATION ${IQR_INSTALL_DIR}/iqr/lib/Modules )
  </code></pre>
  
  <p>But when I try to generate this using the cmake gui I get the following output (cant post images yet so its in the link)</p>
  
  <p><a href="http://postimg.org/image/4e553z6rh/" rel="nofollow noreferrer">http://postimg.org/image/4e553z6rh/</a></p>
  
  <p>I am running Ubuntu 14.04. Any suggestions?</p>
  
  <p>Thanks 
  D</p>