@@ -14,11 +14,17 @@
  * file.
  */
 
 #import "OFString.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 extern int _OFString_URLEncoding_reference;
+#ifdef __cplusplus
+}
+#endif
 
 /**
  * \brief A category which provides URL encoding and decoding.
  */
 @interface OFString (URLEncoding)