Add reference to POSIX.

[pspp] / doc / headers / sys_select.texi

diff --git a/doc/headers/sys_select.texi b/doc/headers/sys_select.texi
index f60ac48268ee196e421566f743ecbc8106674b6f..b005c300e43ed8593d89ccddc33a9fb39ddbe221 100644 (file)
--- a/doc/headers/sys_select.texi
+++ b/doc/headers/sys_select.texi
@@ -1,6 +1,8 @@
 @node sys/select.h
 @section @file{sys/select.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/sys/select.h.html}
+
 Gnulib module: sys_select
 
 Portability problems fixed by Gnulib: