Taken from https://gitweb.gentoo.org/repo/gentoo.git/tree/sys-devel/llvm-roc/files

diff -Naur a/clang/lib/Basic/CMakeLists.txt b/clang/lib/Basic/CMakeLists.txt
--- a/clang/lib/Basic/CMakeLists.txt	2019-12-28 07:42:49.119055933 +0100
+++ b/clang/lib/Basic/CMakeLists.txt	2019-12-28 07:42:13.265056070 +0100
@@ -2,6 +2,7 @@
   Core
   MC
   Support
+  Option
   )
 
 find_first_existing_vc_file("${LLVM_MAIN_SRC_DIR}" llvm_vc)
diff -Naur a/clang/lib/Driver/CMakeLists.txt b/clang/lib/Driver/CMakeLists.txt
--- a/clang/lib/Driver/CMakeLists.txt	2019-12-28 07:41:39.521056199 +0100
+++ b/clang/lib/Driver/CMakeLists.txt	2019-12-28 07:40:23.998056487 +0100
@@ -79,4 +79,5 @@
   LINK_LIBS
   clangBasic
   ${system_libs}
+  pthread
   )
oszko' 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=87720306307dc4297435d45c43c9b326907b1415'>refs</a><a class='active' href='/guix/log/gnu/packages/conky.scm'>log</a><a href='/guix/tree/gnu/packages/conky.scm?id=87720306307dc4297435d45c43c9b326907b1415'>tree</a><a href='/guix/commit/gnu/packages/conky.scm?id=87720306307dc4297435d45c43c9b326907b1415'>commit</a><a href='/guix/diff/gnu/packages/conky.scm?id=87720306307dc4297435d45c43c9b326907b1415'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/conky.scm'>
<input type='hidden' name='id' value='87720306307dc4297435d45c43c9b326907b1415'/><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=87720306307dc4297435d45c43c9b326907b1415'>root</a>/<a href='/guix/log/gnu?id=87720306307dc4297435d45c43c9b326907b1415'>gnu</a>/<a href='/guix/log/gnu/packages?id=87720306307dc4297435d45c43c9b326907b1415'>packages</a>/<a href='/guix/log/gnu/packages/conky.scm?id=87720306307dc4297435d45c43c9b326907b1415'>conky.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/conky.scm?id=87720306307dc4297435d45c43c9b326907b1415&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-12-13 17:48:25 +0100'>2021-12-13</span></td><td><a href='/guix/commit/gnu/packages/conky.scm?id=8394619baceb118df92e355377fd543bb1aa501a'>gnu: Simplify package inputs.</a><span class='msg-avail'>...<span class='msg-tooltip'>This commit was obtained by running:

  ./pre-inst-env guix style

without any additional argument.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-05-07 00:09:33 +0200'>2021-05-07</span></td><td><a href='/guix/commit/gnu/packages/conky.scm?id=6d6b720ea023d9bb75cd7d310aa867c99d0321ec'>gnu: conky: Enable WLAN support.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/conky.scm (conky)[arguments]: Add "-DBUILD_WLAN=ON"
to #:configure-flags.
[inputs]: Add wireless-tools.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-05-06 23:55:31 +0200'>2021-05-06</span></td><td><a href='/guix/commit/gnu/packages/conky.scm?id=4002fcfb8b79095664ee4f5a77ee2629142b5482'>gnu: conky: Run tests.</a><span class='msg-avail'>...<span class='msg-tooltip'>There were always tests.

* gnu/packages/conky.scm (conky)[arguments]: Build and run tests.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-05-06 23:55:12 +0200'>2021-05-06</span></td><td><a href='/guix/commit/gnu/packages/conky.scm?id=dfef3121c35aa7d42324afa106cd9b1579f14153'>gnu: conky: Update to 1.12.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/conky.scm (conky): Update to 1.12.2.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>