If all else fails, look for data files (romlist.bin) in the current working direcoty.

src/libui_sdl/Platform.cpp

@@ -187,6 +187,9 @@ FILE* OpenDataFile(const char* path)
         free(fullpath);
     }
 
+	FILE* f = fopen(path, "rb");
+	if (f) return f;
+    
     return NULL;
 }