在Mac上配置OpenCV+QT

1.安装Xcode

    from App Store

2.安装MacPorts(https://www.macports.org/install.php)

    注意系统版本，因为之前装错了版本，重装还导致了下面的问题

    问题：Waiting for other installations to finish(参考：http://superuser.com/questions/169908/installer-hangs-on-waiting-for-other-installations-to-finish-despite-no-other)
    解决：Chances are that a previous installation hung and the lock was never cleaned up.
       1）sudo rm /private/var/db/mds/system/mds.install.lock
       2)  reboot
    记得更新下，有点慢。(https://trac.macports.org/ticket/43228）:

    Terminal: sudo port selfupdate

3.安装CMake

  (http://www.cmake.org/download/)

Terminal:ruby-e"$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

然后用brew安装了CMake(https://github.com/travis-ci/travis-ci/issues/2175)

Terminal: 

brew install cmake

4.安装OpenCV(http://opencv.org/downloads.html)

5.设置开发者活动目录

6.在Qt中使用

QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.9 到pro里

或者

http://stackoverflow.com/questions/14940126/opencv-2-4-3-cant-find-imread-and-surffeaturedetectordetect

原文参考：http://drthitirat.wordpress.com/2014/09/21/install-opencv-2-4-9-and-qt-5-3-2-on-mac-osx-10-9-5-and-xcode-6-0-1/

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