Add reference to POSIX.

[pspp] / doc / headers / nl_types.texi

diff --git a/doc/headers/nl_types.texi b/doc/headers/nl_types.texi
index e3da4cfc6d6dd1b2895dacbce0197aecf316cdc3..a09b04c6f7c00333fb645532ec8f279b81129543 100644 (file)
--- a/doc/headers/nl_types.texi
+++ b/doc/headers/nl_types.texi
@@ -1,6 +1,8 @@
 @node nl_types.h
 @section @file{nl_types.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/nl/types.h.html}
+
 Gnulib module: ---
 
 Portability problems fixed by Gnulib: