Remove reference to -pthreads option in libstdc++ manual

	* doc/xml/manual/using.xml: Remove reference to -pthreads option.
	* doc/html/*: Regenerate.

From-SVN: r239693

libstdc++-v3/ChangeLog

 2016-08-23  Jonathan Wakely  <jwakely@redhat.com>
 
+	* doc/xml/manual/using.xml: Remove reference to -pthreads option.
+	* doc/html/*: Regenerate.
+
 	* testsuite/experimental/feat-cxx14.cc: Only preprocess, not compile.
 	* testsuite/experimental/feat-lib-fund.cc: Likewise.
 

libstdc++-v3/doc/html/manual/using.html

@@ -15,7 +15,7 @@
       <span class="command"><strong>g++ -std=gnu++98</strong></span> for older releases.
     </p><div class="table"><a id="table.cmd_options"></a><p class="title"><strong>Table 3.1. C++ Command Options</strong></p><div class="table-contents"><table summary="C++ Command Options" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Option Flags</th><th align="left">Description</th></tr></thead><tbody><tr><td align="left"><code class="literal">-std=c++98</code> or <code class="literal">-std=c++03</code>
       </td><td align="left">Use the 1998 ISO C++ standard plus amendments.</td></tr><tr><td align="left"><code class="literal">-std=gnu++98</code> or <code class="literal">-std=gnu++03</code>
-      </td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-std=c++11</code></td><td align="left">Use the 2011 ISO C++ standard.</td></tr><tr><td align="left"><code class="literal">-std=gnu++11</code></td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-std=c++14</code></td><td align="left">Use the 2014 ISO C++ standard.</td></tr><tr><td align="left"><code class="literal">-std=gnu++14</code></td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-fexceptions</code></td><td align="left">See <a class="link" href="using_exceptions.html#intro.using.exception.no" title="Doing without">exception-free dialect</a></td></tr><tr><td align="left"><code class="literal">-frtti</code></td><td align="left">As above, but RTTI-free dialect.</td></tr><tr><td align="left"><code class="literal">-pthread</code> or <code class="literal">-pthreads</code></td><td align="left">For ISO C++11
+      </td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-std=c++11</code></td><td align="left">Use the 2011 ISO C++ standard.</td></tr><tr><td align="left"><code class="literal">-std=gnu++11</code></td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-std=c++14</code></td><td align="left">Use the 2014 ISO C++ standard.</td></tr><tr><td align="left"><code class="literal">-std=gnu++14</code></td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-fexceptions</code></td><td align="left">See <a class="link" href="using_exceptions.html#intro.using.exception.no" title="Doing without">exception-free dialect</a></td></tr><tr><td align="left"><code class="literal">-frtti</code></td><td align="left">As above, but RTTI-free dialect.</td></tr><tr><td align="left"><code class="literal">-pthread</code></td><td align="left">For ISO C++11
         <code class="filename">&lt;thread&gt;</code>,
         <code class="filename">&lt;future&gt;</code>,
         <code class="filename">&lt;mutex&gt;</code>,

libstdc++-v3/doc/xml/manual/using.xml

@@ -78,7 +78,7 @@
     </row>
 
     <row>
-      <entry><literal>-pthread</literal> or <literal>-pthreads</literal></entry>
+      <entry><literal>-pthread</literal></entry>
       <entry>For ISO C++11
         <filename class="headerfile">&lt;thread&gt;</filename>,
         <filename class="headerfile">&lt;future&gt;</filename>,