doc: document ios build tag for crypto/x509
Change-Id: I6e6d38ae347b4f5a33dff609b89785a038bc384c
Reviewed-on: https://go-review.googlesource.com/12304
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/doc/go1.5.html b/doc/go1.5.html
index 7d0e6e3..87dbfde 100644
--- a/doc/go1.5.html
+++ b/doc/go1.5.html
@@ -242,6 +242,11 @@
<code>get_random_bytes</code> system call.
</p>
+<p>
+On Darwin, the use of the system X.509 certificate interface can be disabled
+with the <code>ios</code> build tag.
+</p>
+
<h2 id="tools">Tools</h2>
<h3 id="translate">Translating</h3>
