Android: Don't include Apache code under LGPLv2 license

The code which extracts style assets for the Android style
is licensed under the Apache license, which is not compatible
with LGPLv2.1. It is, however, compatible with LGPLv3. This
means that the Android platform plugin cannot be LGPLv2.1
as long as this code is included.

To minimize licensing confusion, we default to only providing
LGPLv3 for Android. If you want to build a LGPLv2.1-compatible
library, you can add -no-android-style-assets to the
configuration. This will in turn enable the LGPLv2.1 in
the configure output, and it will disable the extraction
code in the platform plugin.

Running the Android style with an LGPLv2.1-compatible platform
plugin will work, but it will look horrible.

[ChangeLog][Android] Default open-source license for
Qt for Android is now LGPLv3. For compatibility with the LGPLv2.1
license, add "-no-android-style-assets" to your configuration.

Change-Id: I6c7b52140f38138520871fa7c69debbb4ee90e6c
Task-number: QTBUG-41365
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Christian Stromme <christian.stromme@digia.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/src/plugins/platforms/android/extract-dummy.cpp b/src/plugins/platforms/android/extract-dummy.cpp
new file mode 100644
index 0000000000..86ac554531
--- /dev/null
+++ b/src/plugins/platforms/android/extract-dummy.cpp
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <jni.h>
+#include <extract.h>
+
+extern "C" JNIEXPORT jintArray JNICALL Java_org_qtproject_qt5_android_ExtractStyle_extractNativeChunkInfo(JNIEnv *, jobject, Res_png_9patch*)
+{
+    return 0;
+}
+
+extern "C" JNIEXPORT jintArray JNICALL Java_org_qtproject_qt5_android_ExtractStyle_extractChunkInfo(JNIEnv *, jobject, jbyteArray)
+{
+        return 0;
+}
+
+extern "C" JNIEXPORT jintArray JNICALL Java_org_qtproject_qt5_android_ExtractStyle_extractNativeChunkInfo20(JNIEnv *, jobject, long)
+{
+    return 0;
+}
+
+extern "C" JNIEXPORT jintArray JNICALL Java_org_qtproject_qt5_android_ExtractStyle_extractChunkInfo20(JNIEnv *, jobject, jbyteArray)
+{
+    return 0;
+}