This following patch was originally found at the debian mingw-w64 team's
binutils repo located here:
https://salsa.debian.org/mingw-w64-team/binutils-mingw-w64.git

Invoke the following in the aforementioned repo to see the original patch:

  $ git show da63f6b:debian/patches/reproducible-import-libraries.patch

Description: Make DLL import libraries reproducible
Author: Benjamin Moody <benjamin.moody@gmail.com>
Bug-Debian: https://bugs.debian.org/915055

--- a/ld/pe-dll.c
+++ b/ld/pe-dll.c
@@ -2844,6 +2844,7 @@
 
   bfd_set_format (outarch, bfd_archive);
   outarch->has_armap = 1;
+  outarch->flags |= BFD_DETERMINISTIC_OUTPUT;
 
   /* Work out a reasonable size of things to put onto one line.  */
   ar_head = make_head (outarch);
h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>refs</a><a href='/guix/log/doc/guix-cookbook.texi'>log</a><a href='/guix/tree/doc/guix-cookbook.texi?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>tree</a><a class='active' href='/guix/commit/doc/guix-cookbook.texi?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>commit</a><a href='/guix/diff/doc/guix-cookbook.texi?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/doc/guix-cookbook.texi'>
<input type='hidden' name='id' value='8480c65bb7e5e73345d5ca355d0a137796efa078'/><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/commit/?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>root</a>/<a href='/guix/commit/doc?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>doc</a>/<a href='/guix/commit/doc/guix-cookbook.texi?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>guix-cookbook.texi</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='8480c65bb7e5e73345d5ca355d0a137796efa078'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Morgan Smith &lt;Morgan.J.Smith@outlook.com&gt;</td><td class='right'>2021-01-04 15:21:55 -0500</td></tr>
<tr><th>committer</th><td>Mathieu Othacehe &lt;othacehe@gnu.org&gt;</td><td class='right'>2021-01-06 11:20:35 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/guix/commit/doc/guix-cookbook.texi?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>8480c65bb7e5e73345d5ca355d0a137796efa078</a> (<a href='/guix/patch/doc/guix-cookbook.texi?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/guix/tree/?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>a09ee40fc3604e57422d6b36cceef85544fa250b</a> /<a href='/guix/tree/doc/guix-cookbook.texi?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>doc/guix-cookbook.texi</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/guix/commit/doc/guix-cookbook.texi?id=0c8abacf3acb9985b3c08b86184d7ef21f2986a4'>0c8abacf3acb9985b3c08b86184d7ef21f2986a4</a> (<a href='/guix/diff/doc/guix-cookbook.texi?id=8480c65bb7e5e73345d5ca355d0a137796efa078&amp;id2=0c8abacf3acb9985b3c08b86184d7ef21f2986a4'>diff</a>)</td></tr><tr><th>download</th><td colspan='2' class='oid'><a href='/guix/snapshot/guix-8480c65bb7e5e73345d5ca355d0a137796efa078.tar.gz'>guix-8480c65bb7e5e73345d5ca355d0a137796efa078.tar.gz</a><br/><a href='/guix/snapshot/guix-8480c65bb7e5e73345d5ca355d0a137796efa078.zip'>guix-8480c65bb7e5e73345d5ca355d0a137796efa078.zip</a><br/></td></tr></table>
<div class='commit-subject'>doc: Link to "Keyboard Layout" in "operating-system Reference"</div><div class='commit-msg'>* doc/guix.texi (operating-system Reference): Link to the
"Keyboard Layout" node.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</div><div class='diffstat-header'><a href='/guix/diff/?id=8480c65bb7e5e73345d5ca355d0a137796efa078'>Diffstat</a> (limited to 'doc/guix-cookbook.texi')</div><table summary='diffstat' class='diffstat'></table><div class='diffstat-summary'>0 files changed, 0 insertions, 0 deletions</div><table summary='diff' class='diff'><tr><td></td></tr></table></div> <!-- class=content -->
                         <div class=footer>generated by
                             <a href="https://git.zx2c4.com/cgit/about/">
                                 cgit
                             </a>
                         </div>
                        </div> <!-- id=cgit -->
</body>
</html>