sock_for_fd.h in kgio-2.1.0

- old
+ new

@@ -62,8 +62,8 @@
 {
 	id_for_fd = rb_intern("for_fd");
 }
 #endif /* sock_for_fd */
 #if SOCK_FOR_FD > 0
-#  define init_sock_for_fd() if (0)
+#  define init_sock_for_fd() for (;0;)
 #endif
 #endif /* SOCK_FOR_FD_H */