Since libnm-wwan.so is not just a loadable module but also a shared library
that some plugin links against, build it as a shared library while avoiding
'-Wl,--no-undefined':

  https://github.com/mesonbuild/meson/issues/9492#issuecomment-973117289

diff --git a/src/core/devices/wwan/meson.build b/src/core/devices/wwan/meson.build
index 37ef738..18ac54f 100644
--- a/src/core/devices/wwan/meson.build
+++ b/src/core/devices/wwan/meson.build
@@ -4,8 +4,9 @@ wwan_inc = include_directories('.')
 
 linker_script = join_paths(meson.current_source_dir(), 'libnm-wwan.ver')
 
-libnm_wwan = shared_module(
+libnm_wwan = shared_library(
   'nm-wwan',
+  override_options: ['b_lundef=false'],
   sources: files(
   'nm-service-providers.c',
   'nm-modem-broadband.c',
' 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=192d74719ace67c08da1e1c682521b52ac6b0725'>refs</a><a class='active' href='/guix/log/gnu/packages/cryptsetup.scm'>log</a><a href='/guix/tree/gnu/packages/cryptsetup.scm?id=192d74719ace67c08da1e1c682521b52ac6b0725'>tree</a><a href='/guix/commit/gnu/packages/cryptsetup.scm?id=192d74719ace67c08da1e1c682521b52ac6b0725'>commit</a><a href='/guix/diff/gnu/packages/cryptsetup.scm?id=192d74719ace67c08da1e1c682521b52ac6b0725'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/cryptsetup.scm'>
<input type='hidden' name='id' value='192d74719ace67c08da1e1c682521b52ac6b0725'/><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=192d74719ace67c08da1e1c682521b52ac6b0725'>root</a>/<a href='/guix/log/gnu?id=192d74719ace67c08da1e1c682521b52ac6b0725'>gnu</a>/<a href='/guix/log/gnu/packages?id=192d74719ace67c08da1e1c682521b52ac6b0725'>packages</a>/<a href='/guix/log/gnu/packages/cryptsetup.scm?id=192d74719ace67c08da1e1c682521b52ac6b0725'>cryptsetup.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/packages/cryptsetup.scm?id=192d74719ace67c08da1e1c682521b52ac6b0725&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-06-16 12:13:40 +0200'>2021-06-16</span></td><td><a href='/guix/commit/gnu/packages/cryptsetup.scm?id=9c441cf3b6bd81bf673ca662240a24c2655b8f85'>gnu: cryptsetup: Update LUKS2 comment.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/cryptsetup.scm (cryptsetup)[arguments]: Update comment to 2.06.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-05-30 15:13:40 +0200'>2021-05-30</span></td><td><a href='/guix/commit/gnu/packages/cryptsetup.scm?id=bf2a36164375654c9ccb2bf96ada3f276da6b5eb'>gnu: cryptsetup: Rewrite synopsis &amp; description.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/cryptsetup.scm (cryptsetup)[synopsis, description]:
Be more explicit about stuff.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-05-30 15:13:40 +0200'>2021-05-30</span></td><td><a href='/guix/commit/gnu/packages/cryptsetup.scm?id=e9cbb97ac85830e195005c025a5fc07c25e471cf'>gnu: cryptsetup: Update to 2.3.6.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/cryptsetup.scm (cryptsetup): Update to 2.3.6.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-03-27 20:52:17 +0100'>2021-03-27</span></td><td><a href='/guix/commit/gnu/packages/cryptsetup.scm?id=61746650b22698583bbc016b4ae1763422f7023c'>gnu: cryptsetup: Update to 2.3.5.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/cryptsetup.scm (cryptsetup): Update to 2.3.5.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-09-15 20:59:15 +0200'>2020-09-15</span></td><td><a href='/guix/commit/gnu/packages/cryptsetup.scm?id=04912d4f9f927ae47742011857cc637f399069a0'>gnu: cryptsetup: Update to 2.3.4.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/cryptsetup.scm (cryptsetup): Update to 2.3.4.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>