:usage_error
echo [ERROR:%~nx0] Error in script usage. The correct usage is:
goto :usage

:usage
echo Syntax:
echo     %~nx0 [arch] [platform_type] [winsdk_version] [-vcvars_ver=vc_version] [-vcvars_spectre_libs=spectre_mode]
echo where :
echo     [arch]: x86 ^| amd64 ^| x86_amd64 ^| x86_arm ^| x86_arm64 ^| amd64_x86 ^| amd64_arm ^| amd64_arm64
echo     [platform_type]: {empty} ^| store ^| uwp
echo     [winsdk_version] : full Windows 10 SDK number (e.g. 10.0.10240.0) or "8.1" to use the Windows 8.1 SDK.
echo     [vc_version] : {none} for latest installed VC++ compiler toolset ^|
echo                    "14.0" for VC++ 2015 Compiler Toolset ^|
echo                    "14.xx" for the latest 14.xx.yyyyy toolset installed (e.g. "14.11") ^|
echo                    "14.xx.yyyyy" for a specific full version number (e.g. "14.11.25503")
echo     [spectre_mode] : {none} for libraries without spectre mitigations ^|
echo                      "spectre" for libraries with spectre mitigations
echo:
echo The store parameter sets environment variables to support Universal Windows Platform application
echo development and is an alias for 'uwp'.
echo:
echo For example:
echo     %~nx0 x86_amd64
echo     %~nx0 x86_amd64 10.0.10240.0
echo     %~nx0 x86_arm uwp 10.0.10240.0
echo     %~nx0 x86_arm onecore 10.0.10240.0 -vcvars_ver=14.0
echo     %~nx0 x64 8.1
echo     %~nx0 x64 store 8.1
echo:
echo Please make sure either Visual Studio or C++ Build SKU is installed.
goto :end

:missing
echo The specified configuration type is missing.  The tools for the
echo configuration might not be installed.
goto :end

:end
set __VCVARSALL_TARGET_ARCH=
set __VCVARSALL_HOST_ARCH=
set __VCVARSALL_STORE=
set __VCVARSALL_WINSDK=
set __VCVARSALL_PARSE_ERROR=
set __VCVARSALL_CLEAN_ENV=
set VSCMD_VCVARSALL_INIT=
set __VCVARSALL_VSDEVCMD_ARGS=
set __VCVARSALL_HELP=
set __VCVARSALL_VER=
set __VCVARSALL_SPECTRE=