FS-5642 --resolve add back the ETIMEDOUT check, needed on Mac

libs/sofia-sip/libsofia-sip-ua/tport/ws.c

@@ -809,7 +809,7 @@ int xp_errno(void)
 
 int xp_is_blocking(int errcode)
 {
-  return errcode == EAGAIN || errcode == EWOULDBLOCK || errcode == EINPROGRESS || errcode == EINTR;
+  return errcode == EAGAIN || errcode == EWOULDBLOCK || errcode == EINPROGRESS || errcode == EINTR || errcode == ETIMEDOUT;
 }
 
 #endif