The `BOOST_LITTLE_ENDIAN` and `BOOST_BIG_ENDIAN` macros, along with the
"boost/detail/endian.hpp" header, were deprecated in boost 1.69.0 and finally
removed in boost 1.73.0.  They are superseded by the BOOST_ENDIAN_LITTLE_BYTE
and BOOST_ENDIAN_BIG_BYTE macros and "boost/predef/other/endian.h" header.

Deprecated: https://github.com/boostorg/predef/commit/32d4581c1689370444f2e565cfbb8421d5071807
Removed:    https://github.com/boostorg/predef/commit/aa6e232bf170ad8b856aff9e7c70334f77441c7f

Adaptation of patch from https://bitbucket.org/fenics-project/dolfin/issues/1116

--- a/dolfin/io/VTKFile.cpp
+++ b/dolfin/io/VTKFile.cpp
@@ -20,7 +20,7 @@
 #include <vector>
 #include <iomanip>
 #include <boost/cstdint.hpp>
-#include <boost/detail/endian.hpp>
+#include <boost/predef/other/endian.h>
 
 #include "pugixml.hpp"
 
@@ -614,9 +614,9 @@
   std::string endianness = "";
   if (encode_string == "binary")
   {
-    #if defined BOOST_LITTLE_ENDIAN
+    #if defined BOOST_ENDIAN_LITTLE_BYTE
     endianness = "byte_order=\"LittleEndian\"";
-    #elif defined BOOST_BIG_ENDIAN
+    #elif defined BOOST_ENDIAN_BIG_BYTE
     endianness = "byte_order=\"BigEndian\"";;
     #else
     dolfin_error("VTKFile.cpp",

--- a/dolfin/io/VTKWriter.cpp
+++ b/dolfin/io/VTKWriter.cpp
@@ -24,7 +24,6 @@
 #include <sstream>
 #include <vector>
 #include <iomanip>
-#include <boost/detail/endian.hpp>

 #include <dolfin/fem/GenericDofMap.h>
 #include <dolfin/fem/FiniteElement.h>
  form'><form class='right' method='get' action='/guix/log/doc/images'>
<input type='hidden' name='id' value='9fe4e45be705f98d89e1e49e6ca0c444a9aca00e'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=9fe4e45be705f98d89e1e49e6ca0c444a9aca00e'>root</a>/<a href='/guix/log/doc?id=9fe4e45be705f98d89e1e49e6ca0c444a9aca00e'>doc</a>/<a href='/guix/log/doc/images?id=9fe4e45be705f98d89e1e49e6ca0c444a9aca00e'>images</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/doc/images?id=9fe4e45be705f98d89e1e49e6ca0c444a9aca00e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-05-22 16:11:52 +0200'>2020-05-22</span></td><td><a href='/guix/commit/doc/images?id=cd5d5f53228fd5bf96d9f790aa2606ae71fa68d7'>doc: Update 'Bootstrapping' for further binary seed reduction.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/images/gcc-core-mesboot0-graph.dot: New image, replacing
* doc/images/gcc-mesboot0-bag-graph.dot: ... remove file.
* doc/local.mk (DOT_FILES): Update for new image file.
* doc/guix.texi (Reduced Binary Seed Bootstrap): Use it in updated description
of further reduction of the trusted computing base.
</span></span></td><td>Jan Nieuwenhuizen</td></tr>
<tr><td><span title='2019-03-14 16:30:19 +0100'>2019-03-14</span></td><td><a href='/guix/commit/doc/images?id=19008a22d18e772062952034c58a15ed341df3b5'>Merge branch 'staging' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-03-13 23:12:43 +0100'>2019-03-13</span></td><td><a href='/guix/commit/doc/images?id=e1c15e8b8e25e14c253ff1212e289565736f6ea7'>doc: Document the graphical installer some more.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/guix.texi (Preparing for Installation): Rewrite to specify the two
installation modes.
(Guided Graphical Installation): New node.
(Manual Installation): New node, with the former sections.
(After System Installation): New node.
* doc/images/installer-network.png, doc/images/installer-partitions.png,
doc/images/installer-resume.png: New files.
* doc/local.mk (dist_infoimage_DATA): Add them.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-12-16 22:49:10 +0100'>2018-12-16</span></td><td><a href='/guix/commit/doc/images?id=b3bf38a5600d0fdcb0aeed29ee121edef632165d'>doc: Update mesboot graph without bootstrap-guile.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/images/gcc-mesboot-bag-graph.dot: Update.
</span></span></td><td>Jan Nieuwenhuizen</td></tr>
<tr><td><span title='2018-11-24 08:18:31 +0100'>2018-11-24</span></td><td><a href='/guix/commit/doc/images?id=3d3daf7fa1794c64914ed53e51838a41d9b7adc4'>doc: Update for bootstrap-mescc-tools change.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/guix.texi (Reduced Binary Seed Bootstrap): Update for
bootstrap-mescc-tools change.
* doc/images/gcc-mesboot-bag-graph.dot: Regenerate.
</span></span></td><td>Jan Nieuwenhuizen</td></tr>
<tr><td><span title='2018-09-23 09:46:26 +0200'>2018-09-23</span></td><td><a href='/guix/commit/doc/images?id=a243722c5b8d50b4f0e3f9717ca71aa43dfc56a3'>doc: Describe the Reduced Binary Seed bootstrap.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/guix.texi (Reduced Binary Seed Bootstrap): New node.
* doc/images/gcc-mesboot-bag-graph.dot: New file.
* doc/local.mk (DOT_FILES): Add it.
</span></span></td><td>Jan Nieuwenhuizen</td></tr>