Merge pull request #1862 from mjcheetham/winsdk-loose

Enforce minimum Windows API set, and loosen SDK requirement checks

Author: mjcheetham

Directory.Build.props

@@ -34,6 +34,15 @@
     <OutDir>$(ProjectOutPath)bin\$(Platform)\$(Configuration)\</OutDir>
     <IntDir>$(ProjectOutPath)intermediate\$(Platform)\$(Configuration)\</IntDir>
     <GeneratedIncludePath>$(IntDir)include\</GeneratedIncludePath>
+    <!--
+      Make sure that we don't accidentally use Windows APIs only available after
+      Windows 10 build 16299 (aka '1709', 'RS3', and 'Fall Creators Update').
+      The minimum Windows version that includes the final design of the
+      Projected File System (ProjFS) APIs was actually Windows 10 version 1809
+      (build 17763), but VFS for Git also supports using the older design of the
+      ProjFS APIs from that version.
+    -->
+    <TargetPlatformMinVersion>10.0.16299.0</TargetPlatformMinVersion>
   </PropertyGroup>
 
 </Project>

scripts/Build.bat

@@ -46,12 +46,6 @@ SET VSWHERE_VER=2.6.7
 "%NUGET_EXEC%" install vswhere -Version %VSWHERE_VER% -OutputDirectory %VFS_PACKAGESDIR% || exit /b 1
 SET VSWHERE_EXEC="%VFS_PACKAGESDIR%\vswhere.%VSWHERE_VER%\tools\vswhere.exe"
 
-REM Assumes default installation location for Windows 10 SDKs
-IF NOT EXIST "C:\Program Files (x86)\Windows Kits\10\Include\10.0.16299.0" (
-    ECHO ERROR: Could not find Windows 10 SDK Version 16299
-    EXIT /B 1
-)
-
 REM Use vswhere to find the latest VS installation with the MSBuild component
 REM See https://github.com/Microsoft/vswhere/wiki/Find-MSBuild
 FOR /F "tokens=* USEBACKQ" %%F IN (`%VSWHERE_EXEC% -all -prerelease -latest -products * -requires Microsoft.Component.MSBuild -find MSBuild\**\Bin\amd64\MSBuild.exe`) DO (