Patch downloaded from https://github.com/clementine-player/Clementine/pull/5669 .

diff -ruN clementine-1.3.1.565.gd20c2244a.orig/src/core/database.cpp clementine-1.3.1.565.gd20c2244a/src/core/database.cpp
--- clementine-1.3.1.565.gd20c2244a.orig/src/core/database.cpp	2018-07-07 23:59:24.018540126 +0200
+++ clementine-1.3.1.565.gd20c2244a/src/core/database.cpp	2018-07-08 00:04:47.991551728 +0200
@@ -265,6 +265,17 @@
   StaticInit();
 
   {
+
+#ifdef SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER
+    // In case sqlite>=3.12 is compiled without -DSQLITE_ENABLE_FTS3_TOKENIZER
+    // (generally a good idea  due to security reasons) the fts3 support should be enabled explicitly.
+    QVariant v = db.driver()->handle();
+    if (v.isValid() && qstrcmp(v.typeName(), "sqlite3*") == 0) {
+      sqlite3 *handle = *static_cast<sqlite3**>(v.data());
+      if (handle) sqlite3_db_config(handle, SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, 1, NULL);
+    }
+#endif
+
     QSqlQuery set_fts_tokenizer(db);
     set_fts_tokenizer.prepare("SELECT fts3_tokenizer(:name, :pointer)");
     set_fts_tokenizer.bindValue(":name", "unicode");
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<tr><td><span title='2018-02-22 22:15:21 +0200'>2018-02-22</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=5c213d1bee60a7e2667feda9b8a2997624e5f447'>gnu: american-fuzzy-lop: Change custom qemu input.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2018-01-16 22:23:57 +0200'>2018-01-16</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=7746af660524d7b26c46086116f4386f20050fdd'>gnu: american-fuzzy-lop: Update to 2.52b.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2017-09-20 20:58:04 -0400'>2017-09-20</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=dc1d3cdef70f0e3c047c229c2a0e561d1f47bde8'>gnu: Use 'modify-phases' syntax.</a><span class='msg-avail'>...</span></td><td>Kei Kebreau</td></tr>
<tr><td><span title='2017-09-04 00:10:59 -0400'>2017-09-04</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=d10092b849153dc27cfed0a9601fde6c7bdec918'>gnu: Put autoconf-related phases immediately after the 'unpack phase.</a><span class='msg-avail'>...</span></td><td>Kei Kebreau</td></tr>
<tr><td><span title='2017-08-17 18:17:00 +0300'>2017-08-17</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=a71fd671753c964b458c2842df27594c4896fd53'>gnu: american-fuzzy-lop: Update to 2.49b.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2017-08-17 18:16:57 +0300'>2017-08-17</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=aacefef22247f4fce1710ffe79e4765a4195a6a1'>gnu: american-fuzzy-lop: Add support for non-Intel architectures.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2017-08-09 01:56:53 -0500'>2017-08-09</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=05cca6ce90407f19619a097815c53e5bd90d7780'>gnu: stress-make: Patch default shell.</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2017-07-15 19:17:37 +0800'>2017-07-15</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=59132b800093e486e4d81aed6b837e9ac76aa86c'>gnu: Rename (gnu packages qemu) to (gnu packages virtualization).</a><span class='msg-avail'>...</span></td><td>宋文武</td></tr>
<tr><td><span title='2017-03-15 22:19:39 +0100'>2017-03-15</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=f38607536e10f8991bf67d4f6dc5e0632f206f47'>gnu: Use INSTALL-FILE where appropriate.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2017-03-15 03:45:55 +0100'>2017-03-15</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=a988cbb766b849854113222cea81c03041540b66'>gnu: stress-make: Fix description.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2016-11-29 21:32:09 +0100'>2016-11-29</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=660516e87556dfc39229cb6d319c9d1793efebb4'>gnu: Add zzuf</a><span class='msg-avail'>...</span></td><td>John Darrington</td></tr>
<tr><td><span title='2016-09-09 07:36:40 -0500'>2016-09-09</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=28f45dd7d7ab5c91b82145f6c94fe4476749f023'>gnu: c-reduce: Upgrade to 2.5.0.</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2016-09-06 15:53:57 +0300'>2016-09-06</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=83723949a4e5f90176f8863dd08fd9c7f36bce75'>gnu: Fix pre-2.7.0 qemu builds.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2016-08-13 11:00:45 -0500'>2016-08-13</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=b718bef08e807f21a8c080549e3c971183c5222c'>gnu: Add stress-make.</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2016-07-20 11:37:01 +0300'>2016-07-20</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=c23c628ea7a6435460d12969af5a3ba0e8d82004'>Revert "gnu: julia: Build with zlib."</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2016-07-20 09:11:16 +0300'>2016-07-20</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=95bf72eeb0b99d6b26c3515fa78a587207c6f779'>gnu: julia: Build with zlib.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2016-06-21 00:02:02 -0500'>2016-06-21</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=2f046a0d7e78b868d8cfbdb0c7a9c482f3b5798f'>gnu: Update american-fuzzy-lop to 2.15b.</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>