ldc2 Windows

[Carl Sturtivant]

On Tuesday, 16 October 2018 at 16:43:38 UTC, Carl Sturtivant 
wrote:
> Can't find any Windows specific docs for ldc2.
>
> I want to know which environment variables specific to Windows 
> ldc2 listens to so as to find the linker and libs so as to 
> speed up linking by not searching for a Visual Whatever 
> installation every time.
>
> Anyone?

I have determined that the vcvars batch file that comes with the 
windows 10 sdk sets the following new variables for 64 bit 
development on windows 10 64-bit. It also adds to Path, which I 
would prefer to avoid. Some of these are obviously irrelevant, 
but which ones does ldc2 actually use to speed up linking?

I could use intuition and experiment, but it would be nice if 
someone would just point me to docs or tell me the answer.

CommandPromptType
DevEnvDir
ExtensionSdkDir
Framework40Version
FrameworkDir
FrameworkDir64
FrameworkVersion
FrameworkVersion64
INCLUDE
LIB
LIBPATH
Platform
UCRTVersion
UniversalCRTSdkDir
VCIDEInstallDir
VCINSTALLDIR
VCToolsInstallDir
VCToolsRedistDir
VCToolsVersion
VS150COMNTOOLS
VSCMD_ARG_HOST_ARCH
VSCMD_ARG_TGT_ARCH
VSCMD_ARG_app_plat
VSCMD_VER
VSINSTALLDIR
VisualStudioVersion
WindowsLibPath
WindowsSDKLibVersion
WindowsSDKVersion
WindowsSdkBinPath
WindowsSdkDir
WindowsSdkVerBinPath
__DOTNET_ADD_64BIT
__DOTNET_PREFERRED_BITNESS
__VSCMD_PREINIT_PATH