Add documentation on -Weverything.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137911 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/UsersManual.html b/docs/UsersManual.html
index 6398927..4bf550d 100644
--- a/docs/UsersManual.html
+++ b/docs/UsersManual.html
@@ -39,6 +39,7 @@
<li><a href="#diagnostics_categories">Diagnostic Categories</a></li>
<li><a href="#diagnostics_commandline">Controlling Diagnostics via Command Line Flags</a></li>
<li><a href="#diagnostics_pragmas">Controlling Diagnostics via Pragmas</a></li>
+ <li><a href="#diagnostics_enable_everything">Enabling All Warnings</a></li>
<li><a href="#analyzer_diagnositics">Controlling Static Analyzer Diagnostics</a></li>
</ul>
</li>
@@ -626,6 +627,16 @@
compatible #pragmas there is no guarantee that they will have identical behaviour
on both compilers. </p>
+<h4 id="diagnostics_enable_everything">Enabling All Warnings</h4>
+
+<p>In addition to the traditional <tt>-W</tt> flags, one can enable <b>all</b>
+ warnings by passing <tt>-Weverything</tt>.
+ This works as expected with <tt>-Werror</tt>,
+ and also includes the warnings from <tt>-pedantic</tt>.</p>
+
+<p>Note that when combined with <tt>-w</tt> (which disables all warnings), that
+ flag wins.</p>
+
<h4 id="analyzer_diagnositics">Controlling Static Analyzer Diagnostics</h4>
<p>While not strictly part of the compiler, the diagnostics from Clang's <a