Add reference to POSIX.

[pspp] / doc / headers / sys_socket.texi

diff --git a/doc/headers/sys_socket.texi b/doc/headers/sys_socket.texi
index 171f782d9b98d4f921efdfa0569062c273fd6e1c..de71813f3145a6a141fa44a7b81face48a812df1 100644 (file)
--- a/doc/headers/sys_socket.texi
+++ b/doc/headers/sys_socket.texi
@@ -1,6 +1,8 @@
 @node sys/socket.h
 @section @file{sys/socket.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/sys/socket.h.html}
+
 Gnulib module: sys_socket
 
 Portability problems fixed by Gnulib: