Add reference to POSIX.

[pspp] / doc / headers / utmpx.texi

diff --git a/doc/headers/utmpx.texi b/doc/headers/utmpx.texi
index cd33535897aca41f2820083deae3ecd11d331eea..13bbd4e1d3bb32fa04340d8e5e1e95b385f3a304 100644 (file)
--- a/doc/headers/utmpx.texi
+++ b/doc/headers/utmpx.texi
@@ -1,6 +1,8 @@
 @node utmpx.h
 @section @file{utmpx.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/utmpx.h.html}
+
 Gnulib module: ---
 
 Portability problems fixed by Gnulib: