Taken from the Debian package.

From 7be4a19b76d98260cf95040a47935f854a4ba7a4 Mon Sep 17 00:00:00 2001
From: Valentin Rusu <kde@rusu.info>
Date: Sat, 17 Dec 2011 13:47:58 +0100
Subject: [PATCH] Fix .pc file by adding clucene-shared library

---
 src/core/libclucene-core.pc.cmake |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/src/core/libclucene-core.pc.cmake
+++ b/src/core/libclucene-core.pc.cmake
@@ -6,6 +6,6 @@ includedir=${prefix}/include:${prefix}/i
 Name: libclucene
 Description: CLucene - a C++ search engine, ported from the popular Apache Lucene
 Version: @CLUCENE_VERSION_MAJOR@.@CLUCENE_VERSION_MINOR@.@CLUCENE_VERSION_REVISION@.@CLUCENE_VERSION_PATCH@
-Libs: -L${prefix}/@LIB_DESTINATION@/ -lclucene-core
+Libs: -L${prefix}/@LIB_DESTINATION@/ -lclucene-core -lclucene-shared
 Cflags: -I${prefix}/include -I${prefix}/include/CLucene/ext
 ~
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<tr><td><span title='2023-07-09 22:51:08 -0400'>2023-07-09</span></td><td><a href='/guix/commit/gnu/tests/lightdm.scm?id=65c77f608916f0c206d0d821db1afa2558c5a74f'>gnu: lightdm: Apply patch to fix VNC server address binding ordering.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
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<tr><td><span title='2023-03-03 17:55:33 +0100'>2023-03-03</span></td><td><a href='/guix/commit/gnu/tests/lightdm.scm?id=00767d967d2f70d53bb7494ac09e0e7c44323697'>services: desktop: Deprecate 'elogind-service' procedure.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2022-11-17 17:43:30 -0500'>2022-11-17</span></td><td><a href='/guix/commit/gnu/tests/lightdm.scm?id=1bea5d38a26755b84437623c0f48915a77899b57'>tests: lightdm: Use set-xorg-configuration to set keyboard layout.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-08-28 22:28:47 -0400'>2022-08-28</span></td><td><a href='/guix/commit/gnu/tests/lightdm.scm?id=0ea62e84a787fe94cfeadf67ef27ea995a382b84'>services: Add lightdm-service-type.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>