Another one. Committed to CVS.
Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-6/changes.html,v
retrieving revision 1.17
diff -u -r1.17 changes.html
--- changes.html 27 Jul 2015 11:16:15 -0000 1.17
+++ changes.html 27 Jul 2015 14:35:59 -0000
@@ -48,6 +48,10 @@
overflows. <code>-Wshift-overflow=2</code> also warns about
left-shifting 1 into the sign bit. This warning is enabled by
default.</li>
+ <li>A new command-line option <code>-Wtautological-compare</code> has been
+ added for the C and C++ compilers, which warns if a self-comparison
+ always evaluates to true or false. This warning is enabled by
+ <code>-Wall</code>.</li>
</ul>
<h3 id="c">C</h3>
Marek
