@@ -13,10 +13,14 @@
  * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
  * file.
  */
 
 #import "OFObject.h"
+
+#ifndef OF_HAVE_SOCKETS
+# error No sockets available!
+#endif
 
 @class OFURL;
 @class OFDictionary;
 @class OFDataArray;
 @class OFString;