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);
ed='selected'>koszko</option>
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<div class='path'>path: <a href='/guix/log/?id=4d0fdde344509c4fa37bc7e5dd1e391fd50a8b2e'>root</a>/<a href='/guix/log/gnu?id=4d0fdde344509c4fa37bc7e5dd1e391fd50a8b2e'>gnu</a>/<a href='/guix/log/gnu/tests?id=4d0fdde344509c4fa37bc7e5dd1e391fd50a8b2e'>tests</a>/<a href='/guix/log/gnu/tests/networking.scm?id=4d0fdde344509c4fa37bc7e5dd1e391fd50a8b2e'>networking.scm</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/gnu/tests/networking.scm?id=4d0fdde344509c4fa37bc7e5dd1e391fd50a8b2e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-07-11 23:36:32 +0200'>2020-07-11</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=54461153dac6096a018e35a1d959e45b2c9dbb82'>tests: networking: Use 'net.ifnames=0' for the Open vSwitch test.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/tests/networking.scm (%openvswitch-os): Override KERNEL-ARGUMENTS.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-04-10 20:20:11 +0200'>2020-04-10</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=6720616daaf711314827c157a660339990e5cb07'>tests: openvswitch: Use the absolute file name of ovs-vsctl.</a><span class='msg-avail'>...<span class='msg-tooltip'>This fixes a regression introduced in 8b9cad01e9619f53dc5a65892ca6a09ca5de3447
where ovs-vsctl would no longer be available in PATH.

* gnu/tests/networking.scm (run-openvswitch-test): Qualify "ovs-vsctl"
invocation by ungexping the OPENVSWITCH variable instead of assuming it's
available on PATH.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-03-16 14:05:52 +0100'>2020-03-16</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=ef0f5ff2a74e5e4dc49dfdd0ba6509a91281ddd5'>tests: dhcpd: Adjust network interface name.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a followup to 8e53fe2b91d2776bc1529e7b34967c8f1d9edc32.

* gnu/tests/networking.scm (dhcpd-v4-configuration)
(%dhcpd-os): Use "ens3" instead of "eth0".
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-03-31 21:26:15 +0200'>2019-03-31</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=e73ded3c71527412944bb9a97916a096742f695d'>services: Open vSwitch: Provide a default configuration.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/networking.scm (openvswitch-service-type): Provide
OPENVSWITCH-CONFIGURATION as a default value.
* gnu/tests/networking.scm (%openvswitch-os): Don't configure the service.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-01-11 12:14:38 +0100'>2019-01-11</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=84a2de36a10dc2ab80f86e16721cbd228c85279e'>services: Deprecate a few more service procedures.</a><span class='msg-avail'>...<span class='msg-tooltip'>These procedures were already either undocumented (and de facto
deprecated) or documented as deprecated or redundant.

* gnu/services/base.scm (guix-service, guix-publish-service): Mark as
deprecated.
* gnu/services/mcron.scm (mcron-service): Likewise.
* gnu/services/networking.scm (tor-service): Likewise.
* doc/guix.texi (Scheduled Job Execution): Remove 'mcron-service' and
adjust example.
(Networking Services): Remove 'tor-service'.
* gnu/tests/base.scm (%mcron-os): Use 'mcron-service-type' instead of
'mcron-service'.
* gnu/tests/networking.scm (%tor-os): Use 'tor-service-type' instead of
'tor-service'.
* tests/guix-system.sh: Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>