Add reference to POSIX.

[pspp] / doc / headers / regex.texi

diff --git a/doc/headers/regex.texi b/doc/headers/regex.texi
index 8bd7fdfb0605a462d4edda51de2f2633fe1d362e..656ab1ed131bad14d2d610d5f58da7daebc88b31 100644 (file)
--- a/doc/headers/regex.texi
+++ b/doc/headers/regex.texi
@@ -1,6 +1,8 @@
 @node regex.h
 @section @file{regex.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/regex.h.html}
+
 Gnulib module: regex
 
 Portability problems fixed by Gnulib: