Add reference to POSIX.

[pspp] / doc / headers / assert.texi

diff --git a/doc/headers/assert.texi b/doc/headers/assert.texi
index 2bf2d987e49c0eb48ac1e42b2fae2b744ea19e92..2468d3b7a048f268442b8de01a7ffc217a31d2f6 100644 (file)
--- a/doc/headers/assert.texi
+++ b/doc/headers/assert.texi
@@ -1,6 +1,8 @@
 @node assert.h
 @section @file{assert.h}
 
+POSIX specification: @url{http://www.opengroup.org/susv3xbd/assert.h.html}
+
 Gnulib module: @code{assert}
 
 Portability problems fixed by Gnulib: