Hi All, I'm trying to make libraries for the source code for "Unix Network Programing" book, on my RH Linux like platform. I am getting the following error though: In file included from /usr/include/sys/socket.h:36, from unp.h:14, from read_fd.c:2: /usr/include/bits/socket.h:270: two or more data types in declaration of `__cmsg_nxthdr Can someone help me in this? Thanks, Nikhil