Fix broken links in manual and remove outdated info

	* doc/xml/faq.xml: Add link.
	* doc/xml/manual/backwards_compatibility.xml: Remove outdated
	information on pre-ISO headers. Replace broken link to C++ FAQ Lite.
	* doc/xml/manual/io.xml: Update broken link.
	* doc/html/*: Regenerate.

From-SVN: r246425

15 files changed, 46 insertions, 175 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 1425d28..e5ffec5 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,11 @@
+2017-03-23  Jonathan Wakely  <jwakely@redhat.com>
+
+	* doc/xml/faq.xml: Add link.
+	* doc/xml/manual/backwards_compatibility.xml: Remove outdated
+	information on pre-ISO headers. Replace broken link to C++ FAQ Lite.
+	* doc/xml/manual/io.xml: Update broken link.
+	* doc/html/*: Regenerate.
+
 2017-03-23  Daniel Kruegler  <daniel.kruegler@gmail.com>
 
 	Implement LWG 2686, Why is std::hash specialized for error_code,
diff --git a/libstdc++-v3/doc/html/faq.html b/libstdc++-v3/doc/html/faq.html
index d8695cd..4e0faba 100644
--- a/libstdc++-v3/doc/html/faq.html
+++ b/libstdc++-v3/doc/html/faq.html
@@ -821,23 +821,8 @@
     page</a>.
     </p></td></tr><tr class="question"><td align="left" valign="top"><a id="faq.get_iso_cxx"></a><a id="q-get_iso_cxx"></a><p><strong>7.6.</strong></p></td><td align="left" valign="top"><p>How do I get a copy of the ISO C++ Standard?
     </p></td></tr><tr class="answer"><td align="left" valign="top"><a id="a-get_iso_cxx"></a></td><td align="left" valign="top"><p>
-    Copies of the full ISO 14882 standard are available on line via
-    the ISO mirror site for committee members.  Non-members, or those
-    who have not paid for the privilege of sitting on the committee
-    and sustained their two-meeting commitment for voting rights, may
-    get a copy of the standard from their respective national
-    standards organization.  In the USA, this national standards
-    organization is ANSI and their website is
-    right <a class="link" href="http://www.ansi.org" target="_top">here</a>.  (And if
-    you've already registered with them, clicking this link will take
-    you to directly to the place where you can
-    <a class="link" href="http://webstore.ansi.org/RecordDetail.aspx?sku=ISO%2FIEC+14882:2003" target="_top">buy the standard on-line</a>.
-    </p><p>
-    Who is your country's member body?  Visit the
-    <a class="link" href="http://www.iso.ch/" target="_top">ISO homepage</a> and find out!
-    </p><p>
-    The 2003 version of the standard (the 1998 version plus TC1) is
-    available in print, ISBN 0-470-84674-7.
+    Please refer to the <a class="link" href="manual/appendix_contributing.html" title="Appendix A.  Contributing">Contributing</a>
+    section in our manual.
     </p></td></tr><tr class="question"><td align="left" valign="top"><a id="faq.what_is_abi"></a><a id="q-what_is_abi"></a><p><strong>7.7.</strong></p></td><td align="left" valign="top"><p>
       What's an ABI and why is it so messy?
     </p></td></tr><tr class="answer"><td align="left" valign="top"><a id="a-what_is_abi"></a></td><td align="left" valign="top"><p>
diff --git a/libstdc++-v3/doc/html/index.html b/libstdc++-v3/doc/html/index.html
index 1466567..15dc624 100644
--- a/libstdc++-v3/doc/html/index.html
+++ b/libstdc++-v3/doc/html/index.html
@@ -146,7 +146,7 @@ C++11 Requirements Test Sequence Descriptions
   </a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.at">No <code class="code">vector::at</code>, <code class="code">deque::at</code>, <code class="code">string::at</code></a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.eof">No <code class="code">std::char_traits&lt;char&gt;::eof</code></a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.stringclear">No <code class="code">string::clear</code></a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.ostreamform_istreamscan">
   Removal of <code class="code">ostream::form</code> and <code class="code">istream::scan</code>
   extensions
-</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.stringstreams">No <code class="code">basic_stringbuf</code>, <code class="code">basic_stringstream</code></a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.wchar">Little or no wide character support</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.iostream_templates">No templatized iostreams</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.thread_safety">Thread safety issues</a></span></dt></dl></dd><dt><span class="section"><a href="manual/backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="manual/backwards.html#backwards.third.headers">Pre-ISO headers moved to backwards or removed</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>.
+</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.stringstreams">No <code class="code">basic_stringbuf</code>, <code class="code">basic_stringstream</code></a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.wchar">Little or no wide character support</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.iostream_templates">No templatized iostreams</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second.thread_safety">Thread safety issues</a></span></dt></dl></dd><dt><span class="section"><a href="manual/backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="manual/backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>.
 </a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.streamattach">
 No <code class="code">stream::attach(int fd)</code>
 </a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.support_cxx98">
diff --git a/libstdc++-v3/doc/html/manual/appendix.html b/libstdc++-v3/doc/html/manual/appendix.html
index 175c879..b190d7b 100644
--- a/libstdc++-v3/doc/html/manual/appendix.html
+++ b/libstdc++-v3/doc/html/manual/appendix.html
@@ -20,7 +20,7 @@ C++11 Requirements Test Sequence Descriptions
   </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.at">No <code class="code">vector::at</code>, <code class="code">deque::at</code>, <code class="code">string::at</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.eof">No <code class="code">std::char_traits&lt;char&gt;::eof</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringclear">No <code class="code">string::clear</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.ostreamform_istreamscan">
   Removal of <code class="code">ostream::form</code> and <code class="code">istream::scan</code>
   extensions
-</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringstreams">No <code class="code">basic_stringbuf</code>, <code class="code">basic_stringstream</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.wchar">Little or no wide character support</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.iostream_templates">No templatized iostreams</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.thread_safety">Thread safety issues</a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers moved to backwards or removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>.
+</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringstreams">No <code class="code">basic_stringbuf</code>, <code class="code">basic_stringstream</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.wchar">Little or no wide character support</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.iostream_templates">No templatized iostreams</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.thread_safety">Thread safety issues</a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>.
 </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.streamattach">
 No <code class="code">stream::attach(int fd)</code>
 </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.support_cxx98">
diff --git a/libstdc++-v3/doc/html/manual/appendix_contributing.html b/libstdc++-v3/doc/html/manual/appendix_contributing.html
index 858b03a..4bbae64 100644
--- a/libstdc++-v3/doc/html/manual/appendix_contributing.html
+++ b/libstdc++-v3/doc/html/manual/appendix_contributing.html
@@ -25,9 +25,9 @@
 	  the standard from their respective national standards
 	  organization. In the USA, this national standards
 	  organization is
-	  <a class="link" href="http://www.ansi.org" target="_top">ANSI</a>.
-	  (And if you've already registered with them you can
-	  <a class="link" href="http://webstore.ansi.org/RecordDetail.aspx?sku=INCITS%2fISO%2fIEC+14882-2012" target="_top">buy the standard on-line</a>.)
+	  <a class="link" href="https://www.ansi.org" target="_top">ANSI</a>.
+	  (And if you've already registered with them you can <a class="link" href="https://webstore.ansi.org/RecordDetail.aspx?sku=ISO%2fIEC+14882%3a2014" target="_top">buy
+	  the standard on-line</a>.)
 	</p></li><li class="listitem"><p>
 	  The library working group bugs, and known defects, can
 	  be obtained here:
diff --git a/libstdc++-v3/doc/html/manual/appendix_porting.html b/libstdc++-v3/doc/html/manual/appendix_porting.html
index 165c37d..16b154f 100644
--- a/libstdc++-v3/doc/html/manual/appendix_porting.html
+++ b/libstdc++-v3/doc/html/manual/appendix_porting.html
@@ -18,7 +18,7 @@ C++11 Requirements Test Sequence Descriptions
   </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.at">No <code class="code">vector::at</code>, <code class="code">deque::at</code>, <code class="code">string::at</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.eof">No <code class="code">std::char_traits&lt;char&gt;::eof</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringclear">No <code class="code">string::clear</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.ostreamform_istreamscan">
   Removal of <code class="code">ostream::form</code> and <code class="code">istream::scan</code>
   extensions
-</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringstreams">No <code class="code">basic_stringbuf</code>, <code class="code">basic_stringstream</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.wchar">Little or no wide character support</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.iostream_templates">No templatized iostreams</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.thread_safety">Thread safety issues</a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers moved to backwards or removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>.
+</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringstreams">No <code class="code">basic_stringbuf</code>, <code class="code">basic_stringstream</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.wchar">Little or no wide character support</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.iostream_templates">No templatized iostreams</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.thread_safety">Thread safety issues</a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>.
 </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.streamattach">
 No <code class="code">stream::attach(int fd)</code>
 </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.support_cxx98">
diff --git a/libstdc++-v3/doc/html/manual/backwards.html b/libstdc++-v3/doc/html/manual/backwards.html
index bc21420..e69451e 100644
--- a/libstdc++-v3/doc/html/manual/backwards.html
+++ b/libstdc++-v3/doc/html/manual/backwards.html
@@ -364,75 +364,15 @@ libstdc++-v3.
 	 of the SGI STL (version 3.3), with extensive changes.
       </p><p>A more formal description of the V3 goals can be found in the
 	 official <a class="link" href="source_design_notes.html" title="Design Notes">design document</a>.
-      </p><p>Portability notes and known implementation limitations are as follows.</p><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="backwards.third.headers"></a>Pre-ISO headers moved to backwards or removed</h4></div></div></div><p> The pre-ISO C++ headers
+      </p><p>Portability notes and known implementation limitations are as follows.</p><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="backwards.third.headers"></a>Pre-ISO headers removed</h4></div></div></div><p> The pre-ISO C++ headers
       (<code class="filename">&lt;iostream.h&gt;</code>,
       <code class="filename">&lt;defalloc.h&gt;</code> etc.) are
-      available, unlike previous libstdc++ versions, but inclusion
-      generates a warning that you are using deprecated headers.
-</p><p>This compatibility layer is constructed by including the
-    standard C++ headers, and injecting any items in
-    <code class="code">std::</code> into the global namespace.
-   </p><p>For those of you new to ISO C++ (welcome, time travelers!), no,
-      that isn't a typo. Yes, the headers really have new names.
-      Marshall Cline's C++ FAQ Lite has a good explanation in <a class="link" href="http://www.parashift.com/c++-faq-lite/std-headers.html" target="_top">What's
+      not supported.
+</p><p>For those of you new to ISO C++ (welcome, time travelers!), the
+      ancient pre-ISO headers have new names.
+      The C++ FAQ has a good explanation in <a class="link" href="https://isocpp.org/wiki/faq/coding-standards#std-headers" target="_top">What's
       the difference between &lt;xxx&gt; and &lt;xxx.h&gt; headers?</a>.
-   </p><p> Some include adjustment may be required. What follows is an
-autoconf test that defines <code class="code">PRE_STDCXX_HEADERS</code> when they
-exist.</p><pre class="programlisting">
-# AC_HEADER_PRE_STDCXX
-AC_DEFUN([AC_HEADER_PRE_STDCXX], [
-  AC_CACHE_CHECK(for pre-ISO C++ include files,
-  ac_cv_cxx_pre_stdcxx,
-  [AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
-  ac_save_CXXFLAGS="$CXXFLAGS"
-  CXXFLAGS="$CXXFLAGS -Wno-deprecated"
-
-  # Omit defalloc.h, as compilation with newer compilers is problematic.
-  AC_TRY_COMPILE([
-  #include &lt;new.h&gt;
-  #include &lt;iterator.h&gt;
-  #include &lt;alloc.h&gt;
-  #include &lt;set.h&gt;
-  #include &lt;hashtable.h&gt;
-  #include &lt;hash_set.h&gt;
-  #include &lt;fstream.h&gt;
-  #include &lt;tempbuf.h&gt;
-  #include &lt;istream.h&gt;
-  #include &lt;bvector.h&gt;
-  #include &lt;stack.h&gt;
-  #include &lt;rope.h&gt;
-  #include &lt;complex.h&gt;
-  #include &lt;ostream.h&gt;
-  #include &lt;heap.h&gt;
-  #include &lt;iostream.h&gt;
-  #include &lt;function.h&gt;
-  #include &lt;multimap.h&gt;
-  #include &lt;pair.h&gt;
-  #include &lt;stream.h&gt;
-  #include &lt;iomanip.h&gt;
-  #include &lt;slist.h&gt;
-  #include &lt;tree.h&gt;
-  #include &lt;vector.h&gt;
-  #include &lt;deque.h&gt;
-  #include &lt;multiset.h&gt;
-  #include &lt;list.h&gt;
-  #include &lt;map.h&gt;
-  #include &lt;algobase.h&gt;
-  #include &lt;hash_map.h&gt;
-  #include &lt;algo.h&gt;
-  #include &lt;queue.h&gt;
-  #include &lt;streambuf.h&gt;
-  ],,
-  ac_cv_cxx_pre_stdcxx=yes, ac_cv_cxx_pre_stdcxx=no)
-  CXXFLAGS="$ac_save_CXXFLAGS"
-  AC_LANG_RESTORE
-  ])
-  if test "$ac_cv_cxx_pre_stdcxx" = yes; then
-    AC_DEFINE(PRE_STDCXX_HEADERS,,[Define if pre-ISO C++ header files are present. ])
-  fi
-])
-</pre><p>Porting between pre-ISO headers and ISO headers is simple: headers
+   </p><p>Porting between pre-ISO headers and ISO headers is simple: headers
 like <code class="filename">&lt;vector.h&gt;</code> can be replaced with <code class="filename">&lt;vector&gt;</code> and a using
 directive <code class="code">using namespace std;</code> can be put at the global
 scope. This should be enough to get this code compiling, assuming the
diff --git a/libstdc++-v3/doc/html/manual/index.html b/libstdc++-v3/doc/html/manual/index.html
index e6a54b5..2d6fbba 100644
--- a/libstdc++-v3/doc/html/manual/index.html
+++ b/libstdc++-v3/doc/html/manual/index.html
@@ -127,7 +127,7 @@ C++11 Requirements Test Sequence Descriptions
   </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.at">No <code class="code">vector::at</code>, <code class="code">deque::at</code>, <code class="code">string::at</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.eof">No <code class="code">std::char_traits&lt;char&gt;::eof</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringclear">No <code class="code">string::clear</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.ostreamform_istreamscan">
   Removal of <code class="code">ostream::form</code> and <code class="code">istream::scan</code>
   extensions
-</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringstreams">No <code class="code">basic_stringbuf</code>, <code class="code">basic_stringstream</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.wchar">Little or no wide character support</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.iostream_templates">No templatized iostreams</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.thread_safety">Thread safety issues</a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers moved to backwards or removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>.
+</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.stringstreams">No <code class="code">basic_stringbuf</code>, <code class="code">basic_stringstream</code></a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.wchar">Little or no wide character support</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.iostream_templates">No templatized iostreams</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second.thread_safety">Thread safety issues</a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>.
 </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.streamattach">
 No <code class="code">stream::attach(int fd)</code>
 </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.support_cxx98">
diff --git a/libstdc++-v3/doc/html/manual/status.html b/libstdc++-v3/doc/html/manual/status.html
index 0507cc7..7b6c584 100644
--- a/libstdc++-v3/doc/html/manual/status.html
+++ b/libstdc++-v3/doc/html/manual/status.html
@@ -676,11 +676,7 @@ Feature-testing recommendations for C++</a>.
 	<a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0258r2.html" target="_top">
 	P0258R2
 	</a>
-      </td><td align="center"> 7 </td><td align="left"><code class="code"> __cpp_lib_has_unique_object_representations &gt;= 201606 </code></td></tr><tr bgcolor="#C8B0B0"><td align="left"> Ordered by default </td><td align="left">
-	<a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0181r1.html" target="_top">
-	P0181R1
-	</a>
-      </td><td align="center"> No </td><td align="left"><code class="code"> __cpp_lib_default_order &gt;= 201606</code></td></tr><tr><td align="left"> Polishing <code class="code">&lt;chrono&gt;</code> </td><td align="left">
+      </td><td align="center"> 7 </td><td align="left"><code class="code"> __cpp_lib_has_unique_object_representations &gt;= 201606 </code></td></tr><tr><td align="left"> Polishing <code class="code">&lt;chrono&gt;</code> </td><td align="left">
 	<a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0092r1.html" target="_top">
 	P0092R1
 	</a>
@@ -780,7 +776,11 @@ Feature-testing recommendations for C++</a>.
 	<a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0156r2.html" target="_top">
 	P0156R2
 	</a>
-      </td><td align="center"> 7 </td><td align="left"><code class="code"> __cpp_lib_scoped_lock &gt;= 201703 </code></td></tr></tbody></table></div></div><br class="table-break" /><div class="table"><a id="table.cxx1z_ts_status"></a><p class="title"><strong>Table 1.6. C++ Technical Specifications Implementation Status</strong></p><div class="table-contents"><table summary="C++ Technical Specifications Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
+      </td><td align="center"> 7 </td><td align="left"><code class="code"> __cpp_lib_scoped_lock &gt;= 201703 </code></td></tr><tr bgcolor="#C8B0B0"><td align="left">  </td><td align="left">
+	<a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0298r3.pdf" target="_top">
+	P0298R3
+	</a>
+      </td><td align="center"> 7 </td><td align="left"><code class="code"> ??? </code></td></tr></tbody></table></div></div><br class="table-break" /><div class="table"><a id="table.cxx1z_ts_status"></a><p class="title"><strong>Table 1.6. C++ Technical Specifications Implementation Status</strong></p><div class="table-contents"><table summary="C++ Technical Specifications Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
 	<a class="link" href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2014/n4076.html" target="_top">
 	  N4076
 	</a>
diff --git a/libstdc++-v3/doc/html/manual/streambufs.html b/libstdc++-v3/doc/html/manual/streambufs.html
index c6f311e..0dddd92 100644
--- a/libstdc++-v3/doc/html/manual/streambufs.html
+++ b/libstdc++-v3/doc/html/manual/streambufs.html
@@ -53,9 +53,10 @@
 	return 0;
     }
    </pre><p>Try it yourself!  More examples can be found in 3.1.x code, in
-      <code class="filename">include/ext/*_filebuf.h</code>, and in this article by James Kanze:
-      <a class="link" href="http://kanze.james.neuf.fr/articles/fltrsbf1.html" target="_top">Filtering
-      Streambufs</a>.
+      <code class="filename">include/ext/*_filebuf.h</code>, and in the article
+      <a class="link" href="http://gabisoft.free.fr/articles/fltrsbf1.html" target="_top">Filtering
+      Streambufs</a>
+      by James Kanze.
    </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="io.streambuf.buffering"></a>Buffering</h3></div></div></div><p>First, are you sure that you understand buffering?  Particularly
       the fact that C++ may not, in fact, have anything to do with it?
    </p><p>The rules for buffering can be a little odd, but they aren't any
diff --git a/libstdc++-v3/doc/html/manual/using_concurrency.html b/libstdc++-v3/doc/html/manual/using_concurrency.html
index c30cd66..b404027 100644
--- a/libstdc++-v3/doc/html/manual/using_concurrency.html
+++ b/libstdc++-v3/doc/html/manual/using_concurrency.html
@@ -158,7 +158,7 @@ gcc version 4.1.2 20070925 (Red Hat 4.1.2-33)
     }
       </pre><p>For further details of the C++11 memory model see Hans-J. Boehm's
       <a class="link" href="https://www.hboehm.info/c++mm/" target="_top">Threads
-      and memory model for C++</a> pages, particularly the <a class="link" href="http://www.hpl.hp.com/personal/Hans_Boehm/c++mm/threadsintro.html" target="_top">introduction</a> 
+      and memory model for C++</a> pages, particularly the <a class="link" href="http://www.hboehm.info/c++mm/threadsintro.html" target="_top">introduction</a> 
       and <a class="link" href="https://www.hboehm.info/c++mm/user-faq.html" target="_top">FAQ</a>.
       </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.concurrency.atomics"></a>Atomics</h3></div></div></div><p>
     </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.concurrency.io"></a>IO</h3></div></div></div><p>This gets a bit tricky.  Please read carefully, and bear with me.
diff --git a/libstdc++-v3/doc/xml/faq.xml b/libstdc++-v3/doc/xml/faq.xml
index db67626..340ba9d 100644
--- a/libstdc++-v3/doc/xml/faq.xml
+++ b/libstdc++-v3/doc/xml/faq.xml
@@ -1177,7 +1177,8 @@
   </question>
   <answer xml:id="a-get_iso_cxx">
     <para>
-    Please refer to the Contributing section in our manual.
+    Please refer to the <link linkend="appendix.contrib">Contributing</link>
+    section in our manual.
     </para> 
   </answer>
 </qandaentry>
diff --git a/libstdc++-v3/doc/xml/manual/backwards_compatibility.xml b/libstdc++-v3/doc/xml/manual/backwards_compatibility.xml
index 579c368..dbb3371 100644
--- a/libstdc++-v3/doc/xml/manual/backwards_compatibility.xml
+++ b/libstdc++-v3/doc/xml/manual/backwards_compatibility.xml
@@ -598,86 +598,21 @@ libstdc++-v3.
 
 <para>Portability notes and known implementation limitations are as follows.</para>
 
-<section xml:id="backwards.third.headers"><info><title>Pre-ISO headers moved to backwards or removed</title></info>
+<section xml:id="backwards.third.headers"><info><title>Pre-ISO headers removed</title></info>
 
 
 <para> The pre-ISO C++ headers
       (<filename class="headerfile">&lt;iostream.h&gt;</filename>,
       <filename class="headerfile">&lt;defalloc.h&gt;</filename> etc.) are
-      available, unlike previous libstdc++ versions, but inclusion
-      generates a warning that you are using deprecated headers.
+      not supported.
 </para>
 
-    <para>This compatibility layer is constructed by including the
-    standard C++ headers, and injecting any items in
-    <code>std::</code> into the global namespace.
-   </para>
-   <para>For those of you new to ISO C++ (welcome, time travelers!), no,
-      that isn't a typo. Yes, the headers really have new names.
-      Marshall Cline's C++ FAQ Lite has a good explanation in <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.parashift.com/c++-faq-lite/std-headers.html">What's
+   <para>For those of you new to ISO C++ (welcome, time travelers!), the
+      ancient pre-ISO headers have new names.
+      The C++ FAQ has a good explanation in <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://isocpp.org/wiki/faq/coding-standards#std-headers">What's
       the difference between &lt;xxx&gt; and &lt;xxx.h&gt; headers?</link>.
    </para>
 
-<para> Some include adjustment may be required. What follows is an
-autoconf test that defines <code>PRE_STDCXX_HEADERS</code> when they
-exist.</para>
-
-<programlisting>
-# AC_HEADER_PRE_STDCXX
-AC_DEFUN([AC_HEADER_PRE_STDCXX], [
-  AC_CACHE_CHECK(for pre-ISO C++ include files,
-  ac_cv_cxx_pre_stdcxx,
-  [AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
-  ac_save_CXXFLAGS="$CXXFLAGS"
-  CXXFLAGS="$CXXFLAGS -Wno-deprecated"
-
-  # Omit defalloc.h, as compilation with newer compilers is problematic.
-  AC_TRY_COMPILE([
-  #include &lt;new.h&gt;
-  #include &lt;iterator.h&gt;
-  #include &lt;alloc.h&gt;
-  #include &lt;set.h&gt;
-  #include &lt;hashtable.h&gt;
-  #include &lt;hash_set.h&gt;
-  #include &lt;fstream.h&gt;
-  #include &lt;tempbuf.h&gt;
-  #include &lt;istream.h&gt;
-  #include &lt;bvector.h&gt;
-  #include &lt;stack.h&gt;
-  #include &lt;rope.h&gt;
-  #include &lt;complex.h&gt;
-  #include &lt;ostream.h&gt;
-  #include &lt;heap.h&gt;
-  #include &lt;iostream.h&gt;
-  #include &lt;function.h&gt;
-  #include &lt;multimap.h&gt;
-  #include &lt;pair.h&gt;
-  #include &lt;stream.h&gt;
-  #include &lt;iomanip.h&gt;
-  #include &lt;slist.h&gt;
-  #include &lt;tree.h&gt;
-  #include &lt;vector.h&gt;
-  #include &lt;deque.h&gt;
-  #include &lt;multiset.h&gt;
-  #include &lt;list.h&gt;
-  #include &lt;map.h&gt;
-  #include &lt;algobase.h&gt;
-  #include &lt;hash_map.h&gt;
-  #include &lt;algo.h&gt;
-  #include &lt;queue.h&gt;
-  #include &lt;streambuf.h&gt;
-  ],,
-  ac_cv_cxx_pre_stdcxx=yes, ac_cv_cxx_pre_stdcxx=no)
-  CXXFLAGS="$ac_save_CXXFLAGS"
-  AC_LANG_RESTORE
-  ])
-  if test "$ac_cv_cxx_pre_stdcxx" = yes; then
-    AC_DEFINE(PRE_STDCXX_HEADERS,,[Define if pre-ISO C++ header files are present. ])
-  fi
-])
-</programlisting>
-
 <para>Porting between pre-ISO headers and ISO headers is simple: headers
 like <filename class="headerfile">&lt;vector.h&gt;</filename> can be replaced with <filename class="headerfile">&lt;vector&gt;</filename> and a using
 directive <code>using namespace std;</code> can be put at the global
diff --git a/libstdc++-v3/doc/xml/manual/io.xml b/libstdc++-v3/doc/xml/manual/io.xml
index 36d04ff..0c069b3 100644
--- a/libstdc++-v3/doc/xml/manual/io.xml
+++ b/libstdc++-v3/doc/xml/manual/io.xml
@@ -240,9 +240,10 @@
     }
    </programlisting>
    <para>Try it yourself!  More examples can be found in 3.1.x code, in
-      <filename>include/ext/*_filebuf.h</filename>, and in this article by James Kanze:
-      <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://kanze.james.neuf.fr/articles/fltrsbf1.html">Filtering
-      Streambufs</link>.
+      <filename>include/ext/*_filebuf.h</filename>, and in the article
+      <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://gabisoft.free.fr/articles/fltrsbf1.html">Filtering
+      Streambufs</link>
+      by James Kanze.
    </para>
 
   </section>
diff --git a/libstdc++-v3/doc/xml/manual/using.xml b/libstdc++-v3/doc/xml/manual/using.xml
index 1970845..3057a93 100644
--- a/libstdc++-v3/doc/xml/manual/using.xml
+++ b/libstdc++-v3/doc/xml/manual/using.xml
@@ -1625,7 +1625,7 @@ gcc version 4.1.2 20070925 (Red Hat 4.1.2-33)
 
       <para>For further details of the C++11 memory model see Hans-J. Boehm's
       <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.hboehm.info/c++mm/">Threads
-      and memory model for C++</link> pages, particularly the <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.hpl.hp.com/personal/Hans_Boehm/c++mm/threadsintro.html">introduction</link> 
+      and memory model for C++</link> pages, particularly the <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.hboehm.info/c++mm/threadsintro.html">introduction</link> 
       and <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.hboehm.info/c++mm/user-faq.html">FAQ</link>.
       </para>