Allow the 'QtPrinter' header to be found, as described
at <https://github.com/LuminanceHDR/LuminanceHDR/issues/11>.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fbad8a2..8379c8a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,6 +29,7 @@ find_package(Qt5Xml)
 find_package(Qt5Sql)
 find_package(Qt5Network)
 find_package(Qt5LinguistTools)
+find_package(Qt5PrintSupport REQUIRED)
 IF(WIN32)
 	find_package(Qt5WinExtras)
 ENDIF()
diff --git a/src/HelpBrowser/CMakeLists.txt b/src/HelpBrowser/CMakeLists.txt
index 04319a8..5537dae 100644
--- a/src/HelpBrowser/CMakeLists.txt
+++ b/src/HelpBrowser/CMakeLists.txt
@@ -29,7 +29,7 @@ QT5_WRAP_UI(FILES_UI_H ${FILES_UI})
 
 
 ADD_LIBRARY(helpbrowser ${FILES_H} ${FILES_CPP} ${FILES_MOC} ${FILES_UI_H} ${FILES_HXX})
-qt5_use_modules(helpbrowser Core Concurrent Gui Widgets Xml WebKit WebKitWidgets)
+qt5_use_modules(helpbrowser Core Concurrent Gui Widgets Xml WebKit WebKitWidgets PrintSupport)
 
 SET(FILES_TO_TRANSLATE ${FILES_TO_TRANSLATE} ${FILES_CPP} ${FILES_H} ${FILES_UI} ${FILES_HXX} PARENT_SCOPE)
 SET(LUMINANCE_MODULES_GUI ${LUMINANCE_MODULES_GUI} helpbrowser PARENT_SCOPE)
69c79dde3867'>refs</a><a class='active' href='/guix/log/gnu/installer/connman.scm'>log</a><a href='/guix/tree/gnu/installer/connman.scm?id=d3413b6f87f36758fa270eac694f69c79dde3867'>tree</a><a href='/guix/commit/gnu/installer/connman.scm?id=d3413b6f87f36758fa270eac694f69c79dde3867'>commit</a><a href='/guix/diff/gnu/installer/connman.scm?id=d3413b6f87f36758fa270eac694f69c79dde3867'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/installer/connman.scm'>
<input type='hidden' name='id' value='d3413b6f87f36758fa270eac694f69c79dde3867'/><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=d3413b6f87f36758fa270eac694f69c79dde3867'>root</a>/<a href='/guix/log/gnu?id=d3413b6f87f36758fa270eac694f69c79dde3867'>gnu</a>/<a href='/guix/log/gnu/installer?id=d3413b6f87f36758fa270eac694f69c79dde3867'>installer</a>/<a href='/guix/log/gnu/installer/connman.scm?id=d3413b6f87f36758fa270eac694f69c79dde3867'>connman.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/installer/connman.scm?id=d3413b6f87f36758fa270eac694f69c79dde3867&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-09-21 00:31:15 +0200'>2020-09-21</span></td><td><a href='/guix/commit/gnu/installer/connman.scm?id=e1f3788944ee154ba9b33c891c4ccf039a1ff39a'>installer: Fix docstring typoes.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-04-19 11:46:21 +0200'>2020-04-19</span></td><td><a href='/guix/commit/gnu/installer/connman.scm?id=ea6594e08e2724c64bc07724a07479fc1633dede'>installer: connman: Fix Wifi connection.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2019-05-29 11:44:49 +0200'>2019-05-29</span></td><td><a href='/guix/commit/gnu/installer/connman.scm?id=694cb8dc62f59fb67799ad4908a6b12cf7cb49a3'>installer: Fix wifi menu crash with hidden SSIDs.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2019-02-18 01:52:47 +0100'>2019-02-18</span></td><td><a href='/guix/commit/gnu/installer/connman.scm?id=b83e4a93a2118513cdd2186d796729f0813264c0'>gnu: Fix some typos in the installer.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-01-17 14:04:20 +0100'>2019-01-17</span></td><td><a href='/guix/commit/gnu/installer/connman.scm?id=d0f3a672dcbdfefd3556b6a21985ff0e35eed3be'>gnu: Add graphical installer support.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>