more build fixing.

Author: totallyeviljake

box2d/box2d.MacOS.csproj

@@ -140,7 +140,8 @@
     <Compile Include="Rope\b2Rope.cs" />
     <Compile Include="Rope\b2RopeDef.cs" />
     <Compile Include="b2FlagExtensions.cs" />
-  </ItemGroup>
+	<Compile Include="b2InternalClasses.cs" />
+</ItemGroup>
   <ItemGroup>
     <Folder Include="Collision\" />
     <Folder Include="Common\" />

box2d/box2d.PSM.csproj

@@ -121,7 +121,8 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Rope\b2Rope.cs" />
     <Compile Include="Rope\b2RopeDef.cs" />
-  </ItemGroup>
+<Compile Include="b2InternalClasses.cs" />
+</ItemGroup>
   <ItemGroup />
   <Import Project="$(MSBuildExtensionsPath)\Sce\Sce.Psm.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 

box2d/box2d.Phone.csproj

@@ -129,7 +129,8 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Rope\b2Rope.cs" />
     <Compile Include="Rope\b2RopeDef.cs" />
-  </ItemGroup>
+<Compile Include="b2InternalClasses.cs" />
+</ItemGroup>
   <ItemGroup />
   <ItemGroup>
     <Reference Include="Microsoft.Xna.Framework" />

box2d/box2d.XBox360.csproj

@@ -123,7 +123,9 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Rope\b2Rope.cs" />
     <Compile Include="Rope\b2RopeDef.cs" />
-  </ItemGroup>
+    <Compile Include="b2FlagExtensions.cs" />
+<Compile Include="b2InternalClasses.cs" />
+</ItemGroup>
   <ItemGroup />
   <ItemGroup>
     <Reference Include="Microsoft.Xna.Framework" />

box2d/box2d.iOS.csproj

@@ -162,6 +162,7 @@
     <Compile Include="Rope\b2Rope.cs" />
     <Compile Include="Rope\b2RopeDef.cs" />
     <Compile Include="b2FlagExtensions.cs" />
-  </ItemGroup>
+	<Compile Include="b2InternalClasses.cs" />
+</ItemGroup>
   <ItemGroup />
 </Project>