Do not include interop for NetCoreOnly

packages.cake

@@ -464,22 +464,6 @@ public class Packages
                 BasePath = context.Directory("./"),
                 OutputDirectory = parameters.NugetRoot
             },
-            new NuGetPackSettings()
-            {
-                Id = "Avalonia.Win32.Interoperability",
-                Dependencies = new []
-                {
-                    new NuSpecDependency() { Id = "Avalonia.Win32", Version = parameters.Version },
-                    new NuSpecDependency() { Id = "Avalonia.Direct2D1", Version = parameters.Version },
-                    new NuSpecDependency() { Id = "SharpDX.Direct3D9", Version = SharpDXDirect3D9Version },
-                },
-                Files = new []
-                {
-                    new NuSpecContent { Source = "Avalonia.Win32.Interop/bin/" + parameters.DirSuffix + "/Avalonia.Win32.Interop.dll", Target = "lib/net45" }
-                },
-                BasePath = context.Directory("./src/Windows"),
-                OutputDirectory = parameters.NugetRoot
-            },
             ///////////////////////////////////////////////////////////////////////////////
             // Avalonia.LinuxFramebuffer
             ///////////////////////////////////////////////////////////////////////////////
@@ -500,12 +484,30 @@ public class Packages
             }
         };
 
+        var nuspecNuGetSettingInterop = new NuGetPackSettings()
+        {
+            Id = "Avalonia.Win32.Interoperability",
+            Dependencies = new []
+            {
+                new NuSpecDependency() { Id = "Avalonia.Win32", Version = parameters.Version },
+                new NuSpecDependency() { Id = "Avalonia.Direct2D1", Version = parameters.Version },
+                new NuSpecDependency() { Id = "SharpDX.Direct3D9", Version = SharpDXDirect3D9Version },
+            },
+            Files = new []
+            {
+                new NuSpecContent { Source = "Avalonia.Win32.Interop/bin/" + parameters.DirSuffix + "/Avalonia.Win32.Interop.dll", Target = "lib/net45" }
+            },
+            BasePath = context.Directory("./src/Windows"),
+            OutputDirectory = parameters.NugetRoot
+        };
+
         NuspecNuGetSettings = new List<NuGetPackSettings>();
 
         NuspecNuGetSettings.AddRange(nuspecNuGetSettingsCore);
         NuspecNuGetSettings.AddRange(nuspecNuGetSettingsDesktop);
 
         if (parameters.Platform != "NetCoreOnly") {
+            NuspecNuGetSettings.Add(nuspecNuGetSettingInterop);
             NuspecNuGetSettings.AddRange(nuspecNuGetSettingsMobile);
         }