64-bit Windows unfortunately doesn't follow the common system of a "long" being large enough for a pointer, something that breaks liboil. There is a patch for it here though, so it would be nice if you could merge in that: http://git.videolan.org/gitweb.cgi?p=vlc.git;a=blob;f=extras/contrib/src/Patches/liboil-win64.patch;h=772f1525d7fdd3ffbaa826d851d051128345fbe5;hb=HEAD
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