On the way, also remove obsolete information on how to download it (which, as a side effect, reduces the number of links that can get broken).
Applied. Gerald Index: readings.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/readings.html,v retrieving revision 1.292 diff -u -r1.292 readings.html --- readings.html 19 Mar 2018 00:02:36 -0000 1.292 +++ readings.html 2 Jun 2018 12:37:58 -0000 @@ -370,7 +370,7 @@ <ul> <li><a href="https://math.nist.gov/tnt/">Template Numeric Toolkit</a></li> - <li><a href="http://www.boost.org">The Boost C++ Libraries</a></li> + <li><a href="https://www.boost.org">The Boost C++ Libraries</a></li> </ul> <ul> Index: gcc-3.4/changes.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-3.4/changes.html,v retrieving revision 1.164 diff -u -r1.164 changes.html --- gcc-3.4/changes.html 2 Apr 2018 15:22:37 -0000 1.164 +++ gcc-3.4/changes.html 2 Jun 2018 12:37:59 -0000 @@ -103,7 +103,7 @@ detect whether multi-threaded code is being compiled might change in meaning, possibly resulting in linker errors for single-threaded programs. - Affected users of <a href='http://www.boost.org/'>Boost</a> should + Affected users of <a href="https://www.boost.org">Boost</a> should compile single-threaded code with <code>-DBOOST_DISABLE_THREADS</code>. See Bugzilla for <a href='https://gcc.gnu.org/PR11953'>more Index: testing/testing-boost.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/testing/testing-boost.html,v retrieving revision 1.6 diff -u -r1.6 testing-boost.html --- testing/testing-boost.html 29 Jun 2014 18:50:44 -0000 1.6 +++ testing/testing-boost.html 2 Jun 2018 12:37:59 -0000 @@ -8,14 +8,12 @@ <h1>Boost build and test guide</h1> <p>This page is a guide to running the testing and timing programs for the -<a href="http://www.boost.org/">Boost</a> class libraries as part of +<a href="https://www.boost.org">Boost</a> class libraries as part of GCC integration testing.</p> <h2>Resource usage</h2> -<p>Boost distributions are available from SourceForge, linked from the -<a href="http://www.boost.org/">Boost web site</a>. -These instructions are for version 1.27.0, whose gzipped tar file is +<p>These instructions are for version 1.27.0, whose gzipped tar file is 3.8 MB. The uncompressed distribution comprises some 16 MB of source files. Building the library and tests adds between 80 and 140 MB of object files and executables to this.</p>