Populate INTERFACE_LINK_LIBRARIES property in the cmake files.

This is new in CMake 2.8.12 and replaces the old properties
matching IMPORTED_INTERFACE_LINK_LIBRARIES_<CONFIG>.

Change-Id: I5d4c454972f2535f6792e95718c73d80c56ac24c
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>

mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in

@@ -57,11 +57,13 @@ macro(_populate_$${CMAKE_MODULE_NAME}_target_properties Configuration LIB_LOCATI
 !!ENDIF
     _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
     set_target_properties(Qt5::$${CMAKE_MODULE_NAME} PROPERTIES
-        \"IMPORTED_LINK_INTERFACE_LIBRARIES_${Configuration}\" \"${_Qt5$${CMAKE_MODULE_NAME}_LIB_DEPENDENCIES}\"
+        \"INTERFACE_LINK_LIBRARIES\" \"${_Qt5$${CMAKE_MODULE_NAME}_LIB_DEPENDENCIES}\"
         \"IMPORTED_LOCATION_${Configuration}\" ${imported_location}
 !!IF !isEmpty(CMAKE_LIB_SONAME)
         \"IMPORTED_SONAME_${Configuration}\" \"$${CMAKE_LIB_SONAME}\"
 !!ENDIF
+        # For backward compatibility with CMake < 2.8.12
+        \"IMPORTED_LINK_INTERFACE_LIBRARIES_${Configuration}\" \"${_Qt5$${CMAKE_MODULE_NAME}_LIB_DEPENDENCIES}\"
     )
 
 !!IF !isEmpty(CMAKE_WINDOWS_BUILD)

src/corelib/Qt5CoreConfigExtras.cmake.in

@@ -133,6 +133,11 @@ if (NOT TARGET Qt5::WinMain)
         set(_isPolicyNEW $<TARGET_POLICY:CMP0020>)
         get_target_property(_configs Qt5::Core IMPORTED_CONFIGURATIONS)
         foreach(_config ${_configs})
+            set_property(TARGET Qt5::Core APPEND PROPERTY
+                INTERFACE_LINK_LIBRARIES
+                    $<$<AND:${_isExe},${_isWin32},${_isNotExcluded},${_isPolicyNEW}>:Qt5::WinMain>
+            )
+            # For backward compatibility with CMake < 2.8.12
             set_property(TARGET Qt5::Core APPEND PROPERTY
                 IMPORTED_LINK_INTERFACE_LIBRARIES_${_config}
                     $<$<AND:${_isExe},${_isWin32},${_isNotExcluded},${_isPolicyNEW}>:Qt5::WinMain>

tests/auto/cmake/CMakeLists.txt

@@ -129,3 +129,7 @@ expect_pass(test_opengl_lib)
 if (NOT CMAKE_VERSION VERSION_LESS 2.8.11)
     expect_pass(test_interface)
 endif()
+
+if (NOT CMAKE_VERSION VERSION_LESS 2.8.12)
+    expect_pass(test_interface_link_libraries)
+endif()

tests/auto/cmake/test_interface_link_libraries/CMakeLists.txt

@@ -0,0 +1,21 @@
+
+cmake_minimum_required(VERSION 2.8)
+
+project(test_interface_link_libraries)
+
+find_package(Qt5Gui REQUIRED)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+cmake_policy(SET CMP0022 NEW)
+
+include(GenerateExportHeader)
+
+add_library(somelib SHARED somelib.cpp)
+generate_export_header(somelib)
+set_property(TARGET somelib PROPERTY LINK_LIBRARIES Qt5::Gui)
+set_property(TARGET somelib PROPERTY INTERFACE_LINK_LIBRARIES Qt5::Gui)
+
+add_executable(mainexe main.cpp)
+set_property(TARGET mainexe PROPERTY LINK_LIBRARIES somelib)

tests/auto/cmake/test_interface_link_libraries/main.cpp

@@ -0,0 +1,48 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Stephen Kelly <stephen.kelly@kdab.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "somelib.h"
+
+int main(int,char**)
+{
+    SomeObject so;
+    return so.value();
+}

tests/auto/cmake/test_interface_link_libraries/somelib.cpp

@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Stephen Kelly <stephen.kelly@kdab.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "somelib.h"
+
+SomeObject::SomeObject(QObject *parent)
+  : QTextDocument(parent)
+{
+}
+
+int SomeObject::value()
+{
+    return 0;
+}

tests/auto/cmake/test_interface_link_libraries/somelib.h

@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Stephen Kelly <stephen.kelly@kdab.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SOMELIB_H
+#define SOMELIB_H
+
+#include "somelib_export.h"
+
+#include <QTextDocument>
+
+class SOMELIB_EXPORT SomeObject : QTextDocument
+{
+    Q_OBJECT
+public:
+    explicit SomeObject(QObject *parent = 0);
+
+    int value();
+};
+
+#endif