cl is unable to create an executable file.

Followed the guide

Configure throws:

cl is unable to create an executable file.
C compiler test failed.

$ which link
/c/Program Files (x86)/Microsoft Visual Studio 14.0/VC/BIN/x86_amd64/link

$ which cl
/c/Program Files (x86)/Microsoft Visual Studio 14.0/VC/BIN/x86_amd64/cl

$ echo $PATH
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/c/Program Files (x86)/Microsoft Visual Studio 14.0/Common7/IDE/CommonExtensions/Microsoft/TestWindow:/c/Program Files (x86)/MSBuild/14.0/bin:/c/Program Files (x86)/Microsoft Visual Studio 14.0/Common7/IDE:/c/Program Files (x86)/Microsoft Visual Studio 14.0/VC/BIN/x86_amd64:/c/Program Files (x86)/Microsoft Visual Studio 14.0/VC/BIN:/c/Program Files (x86)/Microsoft Visual Studio 14.0/Common7/Tools:/c/WINDOWS/Microsoft.NET/Framework/v4.0.30319:/c/Program Files (x86)/Microsoft Visual Studio 14.0/VC/VCPackages:/c/Program Files (x86)/HTML Help Workshop:/c/Program Files (x86)/Microsoft Visual Studio 14.0/Team Tools/Performance Tools:/c/Program Files (x86)/Windows Kits/8.1/bin/x86:/c/Program Files (x86)/Microsoft SDKs/Windows/v10.0A/bin/NETFX 4.6 Tools:/c/ProgramData/Oracle/Java/javapath:/c/Program Files (x86)/Common Files/Intel/Shared Libraries/redist/intel64/compiler:/c/WINDOWS/system32:/c/WINDOWS:/c/WINDOWS/System32/Wbem:/c/WINDOWS/System32/WindowsPowerShell/v1.0:/c/Program Files (x86)/NVIDIA Corporation/PhysX/Common:/c/Program Files (x86)/QuickTime/QTSystem:/c/Program Files (x86)/Livestreamer:/c/Program Files (x86)/Windows Kits/8.1/Windows Performance Toolkit:/c/Program Files (x86)/GtkSharp/2.12/bin:/c/Program Files/nodejs:/c/Program Files (x86)/Skype/Phone:/c/Program Files/OpenVPN/bin:/c/Program Files/Common Files/Autodesk Shared:/c/Program Files (x86)/Autodesk/Backburner:/c/Users/coral/AppData/Local/Programs/Python/Python35/Scripts:/c/Users/coral/AppData/Local/Programs/Python/Python35/ :/c/ffmpeg/bin:/c/Users/coral/AppData/Roaming/npm:/c/Users/coral/AppData/Local/Programs/Git/cmd:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl

Start by reproducing the guide's configure step in the reported Visual Studio and shell environment, then inspect the compiler test that emits “cl is unable to create an executable file.” Compare the reported cl, link, and PATH resolution and capture the underlying failure; done means configure can create the test executable or reports a specific actionable error.