Make qlitehtml a dynamic library

So it can be re-used by other plugins.

Fixes: QTCREATORBUG-24330
Change-Id: Ic9ff865f96c01a37584b02d1125717a307cc79ed
Reviewed-by: Cristian Adam <cristian.adam@qt.io>

src/plugins/help/qlitehtml/CMakeLists.txt

@@ -27,13 +27,15 @@ find_package(Qt5 COMPONENTS Widgets REQUIRED)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTORCC ON)
 set(CMAKE_AUTOUIC ON)
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 
-add_library(qlitehtml STATIC
+add_qtc_library(qlitehtml
+  PUBLIC_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR}
+  DEPENDS Qt5::Widgets litehtml
+  PROPERTIES
+    POSITION_INDEPENDENT_CODE ON
+  SOURCES
     container_qpainter.cpp container_qpainter.h
+    qlitehtml_global.h
     qlitehtmlwidget.cpp qlitehtmlwidget.h
 )
-
-target_include_directories(qlitehtml PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
-target_link_libraries(qlitehtml PRIVATE Qt5::Widgets litehtml)
-set_target_properties(qlitehtml PROPERTIES POSITION_INDEPENDENT_CODE ON)

src/plugins/help/qlitehtml/qlitehtml_global.h

@@ -0,0 +1,36 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <qglobal.h>
+
+#if defined(QLITEHTML_LIBRARY)
+#  define QLITEHTML_EXPORT Q_DECL_EXPORT
+#elif defined(QLITEHTML_STATIC_LIBRARY) // Abuse single files for manual tests
+#  define QLITEHTML_EXPORT
+#else
+#  define QLITEHTML_EXPORT Q_DECL_IMPORT
+#endif

src/plugins/help/qlitehtml/qlitehtmlwidget.h

@@ -25,6 +25,8 @@
 
 #pragma once
 
+#include "qlitehtml_global.h"
+
 #include <QAbstractScrollArea>
 #include <QTextDocument>
 
@@ -32,7 +34,7 @@
 
 class QLiteHtmlWidgetPrivate;
 
-class QLiteHtmlWidget : public QAbstractScrollArea
+class QLITEHTML_EXPORT QLiteHtmlWidget : public QAbstractScrollArea
 {
     Q_OBJECT
 public: