tensorflow build in visual studio

i want build tensorflow with visual studio 2015. i download cmake 3.9 and git 2.14 and swig 3.0.12 and make tensorflow solution with cmake. then when build tensorflow solution, visual studio try to download external dependencies like giflib, libpng ,... but cant download eigen : "f3a22f35b044.tar.gz" file, i download 'eigen-eigen-f3a22f35b044.tar.gz' file manually and rename to f3a22f35b044.tar.gz and put in download directory but when i try again to build, VS again try to doawnlod file, VS output :

>  Performing download step (download, verify and extract) for 'eigen'
1>  -- File already exists but no hash specified (use URL_HASH):
1>    file='D:/Artificial Intelligence/Deep Learning/Src/tensorflow/tensorflow-master/Build2/downloads/f3a22f35b044.tar.gz'
1>  Old file will be removed and new file downloaded from URL.
1>  -- Downloading...
1>     dst='D:/Artificial Intelligence/Deep Learning/Src/tensorflow/tensorflow-master/Build2/downloads/f3a22f35b044.tar.gz'
1>     timeout='none'
1>  -- Using src='http://ift.tt/2vUK1uN'

i see eigen.cmake to change URL_HASH but can't find this variable. please help me what can i do?