commit 7f29694236aab000eae24f36b7989a6b774044ae

Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>

Date:   Thu Dec 11 14:54:22 2014 -0500

    Fix __sendmmsg prototype guards

    Add __USE_GNU guards on 'socket/sys/socket.h' __sendmmsg prototype.

diff --git a/include/sys/socket.h b/include/sys/socket.h

index 9caf1bbdf5fa7782..99f60363a133cf93 100644

--- a/include/sys/socket.h

+++ b/include/sys/socket.h

@@ -91,9 +91,11 @@ extern ssize_t __libc_sendmsg (int __fd, const struct msghdr *__message,

 extern ssize_t __sendmsg (int __fd, const struct msghdr *__message,

 			  int __flags) attribute_hidden;

+#ifdef __USE_GNU

 extern int __sendmmsg (int __fd, struct mmsghdr *__vmessages,

                        unsigned int __vlen, int __flags);

 libc_hidden_proto (__sendmmsg)

+#endif

 /* Receive a message as described by MESSAGE from socket FD.

    Returns the number of bytes read or -1 for errors.  */