--- a/source/libs/paragui/src/core/physfsrwops.h	
+++ a/source/libs/paragui/src/core/physfsrwops.h	
@@ -29,6 +29,10 @@ 
 extern "C" {
 #endif
 
+#ifndef __EXPORT__
+#define __EXPORT__
+#endif
+
 /**
  * Open a platform-independent filename for reading, and make it accessible
  *  via an SDL_RWops structure. The file will be closed in PhysicsFS when the