Index: build/Source.targets
===================================================================
diff -u -r1eba15d2a379dc9943fd3d49334bedce5dee72dd -ra88cd43eb780232edc2404f252e0f8d6adbad0ab
--- build/Source.targets	(.../Source.targets)	(revision 1eba15d2a379dc9943fd3d49334bedce5dee72dd)
+++ build/Source.targets	(.../Source.targets)	(revision a88cd43eb780232edc2404f252e0f8d6adbad0ab)
@@ -1,7 +1,7 @@
 <Project>
   <PropertyGroup>
     <OutDir>$(OutputPath)</OutDir>
-    <OutputPath>bin\$(Configuration)\</OutputPath>
+    <OutputPath Condition="$(OutputPath) == ''">bin\$(Configuration)\</OutputPath>
   </PropertyGroup>
   <Import Project="$(SolutionDir)build\Base.targets" />
   <PropertyGroup>