fix SL5 build error

mythz · mythz · commit ae478c8f1afe · 2016-12-08T21:46:09.000-05:00
diff --git a/src/ServiceStack.Text/project.json b/src/ServiceStack.Text/project.json
@@ -72,6 +72,13 @@
         "System.Dynamic.Runtime": "4.0.0",
         "Microsoft.CSharp": "4.0.0"
       }
+    },
+    "Silverlight,Version=v5.0": {
+      "buildOptions": {
+        "define": [
+          "SL5"
+        ] 
+      }
     }
   },
   "version": "1.0.0"
