im having the same prob with zlib

ok you fix zlib prob going here and pull Complete package, except sources from here http://gnuwin32.sourceforge.net/packages/zlib.htm

Sorry to necro, but I had this error on windows 7 64bit. I got past this by installing the 32 bit dependencies, instead of the 64-bit, my guess is that since cmake is 32bit only on windows, and therefore expects 32 bit Zlib dependency. Hope it helps