Strict compilers don't like it when you pass a function with C linkage

as an argument when the parameter type has C++ linkage. Try using the type
of the msghdr::msg_namelen field as an alternative way of deducing the
socklen_t-equivalent type.


[SVN r39443]

libs/asio

@@ -1 +1 @@
-Subproject commit 7b6b09d2a2cddb05cf2c652fed45f8003fc42bb8
+Subproject commit cad9b8813028ce7b5918668d58d85c965b7993fd