Mac installation OpenCV Download ippicv_macosx_20141027.tgz failed solution

First attach the error message at that time:

--icv:downloading ippicv_macosx_20141027.tgz
... CMake Error at 3rdparty/ippicv/downloader.cmake:71 (file):
  file DOWNLOAD HASH mismatch for

    file: [/users/ Zhaozhaokaliang/opencv-3.0.0/3rdparty/ippicv/downloads/macosx-9662fe0694a67e59491a0dcc82fa26e0/ippicv_macosx_ 20141027.TGZ]
      expected hash: [9662FE0694A67E59491A0DCC82FA26E0]
        actual hash: [ 14cb99aa35c53adfb648ca84e9790a82]
             status: [56; " Failure when receiving data from the peer "] ........

In short, it is cmake download ippicv_macosx_20141027.tgz this file when the error encountered, resulting in the download of the file hash value and the expected hash value is different, so we need to download the ippicv_macosx_20141027 ourselves. tgz this file and then cover the past.

Download Address:
http://download.csdn.net/detail/alanzjl/8961695

If you use Safari download, you should carefully see if the suffix name is tgz, because the system may be automatically extracted into tar, so in the tgz of the hash value will change, or success. So you can change the browser to download, or access to the terminal, using the wget instructions to download

wget http://www.mirrorservice.org/sites/dl.sourceforge.net/pub/sourceforge/o/op/opencvlibrary/3rdparty/ippicv/ Ippicv_macosx_20141027.tgz

Download the file to cover the error information mentioned in the directory, everyone's directory may be different, such as mine is
/users/zhaozhaokaliang/opencv-3.0.0/3rdparty/ippicv/downloads/macosx-9662fe0694a67e59491a0dcc82fa26e0/ippicv_ Macosx_20141027.tgz