ICV hash校验值不符的问题

CMake Warning at 3rdparty/ippicv/downloader.cmake:54 (message):
  ICV: Local copy of ICV package has invalid MD5 hash:
  0103b909e19ca9c6497a7ae696c16480 (expected:
  8b449a536a2157bcad08a2b9f266828b)
Call Stack (most recent call first):
  3rdparty/ippicv/downloader.cmake:108 (_icv_downloader)
  cmake/OpenCVFindIPP.cmake:235 (include)
  cmake/OpenCVFindLibsPerf.cmake:12 (include)
  CMakeLists.txt:526 (include)
 
 
-- ICV: Downloading ippicv_linux_20141027.tgz...
CMake Error at 3rdparty/ippicv/downloader.cmake:71 (file):
  file DOWNLOAD HASH mismatch
 
    for file: [/home/jason/program/opencv-3.0.0/3rdparty/ippicv/downloads/linux-8b449a536a2157bcad08a2b9f266828b/ippicv_linux_20141027.tgz]
      expected hash: [8b449a536a2157bcad08a2b9f266828b]
        actual hash: [0103b909e19ca9c6497a7ae696c16480]
 
Call Stack (most recent call first):
  3rdparty/ippicv/downloader.cmake:108 (_icv_downloader)
  cmake/OpenCVFindIPP.cmake:235 (include)
  cmake/OpenCVFindLibsPerf.cmake:12 (include)
  CMakeLists.txt:526 (include

之后查了很多资料也没有发现也不知道该怎么解决，后来去查了一下代码，发现这个是下载ippicv_linux_20141027.tgz时的校验和不符，查看了配置文件，发现可以自行从http://sourceforge.net/projects/opencvlibrary/files/3rdparty/ippicv这里下载，奇怪的是编译时从这里下载的文件和自己下载的文件校验值居然不一样，也真是神奇，将下载的文件

~/opencv-3.0.0/3rdparty/ippicv/downloads/linux-8b449a536a2157bcad08a2b9f266828b ,代替原来的同名文件，ok问题解决。