From f85737bf295e3a121384b6ef194a4b121b302f16 Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon@gmx.de>
Date: Thu, 24 Sep 2015 09:30:00 +0200
Subject: [PATCH] Fixed const warning in lwip_writev

---
 src/api/sockets.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/api/sockets.c b/src/api/sockets.c
index 01c8ad9b..29998787 100644
--- a/src/api/sockets.c
+++ b/src/api/sockets.c
@@ -1278,7 +1278,9 @@ lwip_writev(int s, const struct iovec *iov, int iovcnt)
   
   msg.msg_name = NULL;
   msg.msg_namelen = 0;
-  msg.msg_iov = (struct iovec *)iov;
+  /* Hack: we have to cast via number to cast from 'const' pointer to non-const.
+     Blame the opengroup standard for this inconsistency. */
+  msg.msg_iov = (struct iovec *)(size_t)iov;
   msg.msg_iovlen = iovcnt;
   msg.msg_control = NULL;
   msg.msg_controllen = 0;