Add reference to POSIX.

[pspp] / doc / headers / ndbm.texi

diff --git a/doc/headers/ndbm.texi b/doc/headers/ndbm.texi
index 4c7f88ae8bfc3ffac9ff9dd12c993372c9a9ad7b..1fa234f513e5098583a9815e71fcc26bc87fe280 100644 (file)
--- a/doc/headers/ndbm.texi
+++ b/doc/headers/ndbm.texi
@@ -1,6 +1,8 @@
 @node ndbm.h
 @section @file{ndbm.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/ndbm.h.html}
+
 Gnulib module: ---
 
 Portability problems fixed by Gnulib: