The real answer is probably "no", but still, just to double check. Has anyone ever been able to build ffmpeg x64 on Windows (VS2013 or VS2015)? I know it is not possible with publicly available sources without heavy modifications. However, if somebody did it and if he is willing to share a few tips...
Edit: It is interesting how most of the required x64 tools for running the "configure" are distributed without dependencies and it is impossible to get them anywhere. Looks like a professional trolling.
Edit2: There are thousands of errors like this:
fatal error C1083: Cannot open include file: 'features.h': No such file or directory
features.h is missing as many other header files. Is there a fix for that, or switching to Linux is the only option?
No, it cannot be done. MS compiler doesn't support #include_next. Plus, many other problems... You need MinGW.