Add reference to POSIX.

[pspp] / doc / headers / fenv.texi

diff --git a/doc/headers/fenv.texi b/doc/headers/fenv.texi
index 80a9bf5250943146438569033e6a917026f1586d..f98587913973221118e3bfc6f167fa94b013e406 100644 (file)
--- a/doc/headers/fenv.texi
+++ b/doc/headers/fenv.texi
@@ -1,6 +1,8 @@
 @node fenv.h
 @section @file{fenv.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/fenv.h.html}
+
 Gnulib module: ---
 
 Portability problems fixed by Gnulib: