Added export flag to JSON class.

modules/juce_core/json/juce_JSON.cpp

@@ -329,11 +329,10 @@ public:
         }
         else if (v.isObject())
         {
-            DynamicObject* const object = v.getDynamicObject();
-
-            jassert (object != nullptr); // Only DynamicObjects can be converted to JSON!
-
-            writeObject (out, *object, indentLevel, allOnOneLine);
+            if (DynamicObject* const object = v.getDynamicObject())
+                writeObject (out, *object, indentLevel, allOnOneLine);
+            else
+                jassertfalse; // Only DynamicObjects can be converted to JSON!
         }
         else
         {

modules/juce_core/json/juce_JSON.h

@@ -43,7 +43,7 @@ class File;
 
     @see var
 */
-class JSON
+class JUCE_API  JSON
 {
 public:
     //==============================================================================