if "%BUILD_ARCH%"=="" ( if "%PROCESSOR_ARCHITECTURE%" == "AMD64" ( set WINDOWS_ARCH= Win64 set BUILD_ARCH=x64 ) else if "%PROCESSOR_ARCHITEW6432%" == "AMD64" ( set WINDOWS_ARCH= Win64 set BUILD_ARCH=x64 ) else ( set WINDOWS_ARCH= set BUILD_ARCH=x86 ) ) else if "%BUILD_ARCH%"=="x64" ( set WINDOWS_ARCH= Win64 ) else if "%BUILD_ARCH%"=="x86" ( set WINDOWS_ARCH= )