Add reference to POSIX.

[pspp] / doc / headers / sys_mman.texi

diff --git a/doc/headers/sys_mman.texi b/doc/headers/sys_mman.texi
index db4818295add59279e25fa72b3395933eb5d74d8..c5a8aa94ffa661e53080436f0e5e895c755f7825 100644 (file)
--- a/doc/headers/sys_mman.texi
+++ b/doc/headers/sys_mman.texi
@@ -1,6 +1,8 @@
 @node sys/mman.h
 @section @file{sys/mman.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/sys/mman.h.html}
+
 Gnulib module: ---
 
 Portability problems fixed by Gnulib: