VS: Add VS_SDK_REFERENCES target property to reference external SDKs

Allow one to specify external SDK references such as
`Microsoft.AdMediatorWindows81, Version=1.0`.

1 files changed, 21 insertions, 1 deletions

diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index 3b1cddb..6ab32bf 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -2643,6 +2643,20 @@ void cmVisualStudio10TargetGenerator::WriteSinglePlatformExtension(
 
 void cmVisualStudio10TargetGenerator::WriteSDKReferences()
 {
+  std::vector<std::string> sdkReferences;
+  bool hasWrittenItemGroup = false;
+  if (const char* vsSDKReferences =
+        this->GeneratorTarget->GetProperty("VS_SDK_REFERENCES")) {
+    cmSystemTools::ExpandListArgument(vsSDKReferences, sdkReferences);
+    this->WriteString("<ItemGroup>\n", 1);
+    hasWrittenItemGroup = true;
+    for (std::vector<std::string>::iterator ri = sdkReferences.begin();
+         ri != sdkReferences.end(); ++ri) {
+      this->WriteString("<SDKReference Include=\"", 2);
+      (*this->BuildFileStream) << cmVS10EscapeXML(*ri) << "\"/>\n";
+    }
+  }
+
   // This only applies to Windows 10 apps
   if (this->GlobalGenerator->TargetsWindowsStore() &&
       cmHasLiteralPrefix(this->GlobalGenerator->GetSystemVersion(), "10.0")) {
@@ -2655,7 +2669,10 @@ void cmVisualStudio10TargetGenerator::WriteSDKReferences()
 
     if (desktopExtensionsVersion || mobileExtensionsVersion ||
         iotExtensionsVersion) {
-      this->WriteString("<ItemGroup>\n", 1);
+      if (!hasWrittenItemGroup) {
+        this->WriteString("<ItemGroup>\n", 1);
+        hasWrittenItemGroup = true;
+      }
       if (desktopExtensionsVersion) {
         this->WriteSingleSDKReference("WindowsDesktop",
                                       desktopExtensionsVersion);
@@ -2667,6 +2684,9 @@ void cmVisualStudio10TargetGenerator::WriteSDKReferences()
       if (iotExtensionsVersion) {
         this->WriteSingleSDKReference("WindowsIoT", iotExtensionsVersion);
       }
+    }
+
+    if (hasWrittenItemGroup) {
       this->WriteString("</ItemGroup>\n", 1);
     }
   }