On Saturday, 27 July 2019 at 21:39:46 UTC, Meta wrote: > [...] > HOWEVER, it failed halfway through building: > > [...] You have to define MSVC_AR for example in cmd `set MSVC_AR=C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.16.27023\bin\Hostx64\x64\lib.exe`