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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
/*!
\page android-building.html
\title Qt for Android - Building from Source
\brief How to configure and build Qt for Android directly from source.
\previouspage android-how-it-works.html
\nextpage android-building-projects-from-commandline.html
This page describes the process of configuring and building
\l{Qt for Android}. To download and install a pre-built Qt for Android,
follow the instructions on the \l{Getting Started with Qt} page.
\section1 Prerequisites
To build Qt for Android from source please ensure all requirements
from \l{Getting Started with Qt for Android} are met before continuing.
\section2 Windows
Building Qt for Android on Windows also requires the following software:
\list
\li Mingw-w64 13.1 toolchain
\endlist
\note Qt for Android does not support building from source with Microsoft Visual C++ (MSVC).
Install the prerequisites and append their binary paths to the system \c PATH:
\badcode
set MINGW_ROOT=<MINGW_ROOT_PATH>\bin
set PATH=%MINGW_ROOT%;%PATH%
\endcode
To verify the installation, run:
\badcode
where mingw32-make.exe
\endcode
The command should list mingw32-make.exe under the path \e {<MINGW_ROOT>} first.
\section1 Getting the Sources
You can download the Qt sources from the \l {Qt Downloads} page, or follow
the wiki guide for \l {Getting the source code}.
\section1 Configuring
With Qt 6, you can build Qt for Android from source code using \c CMake. Qt 6
for Android requires a host Qt build, which means to build Qt for Android, you
need to build Qt for the desktop platform used as a host (that is, Linux, \macos,
or Windows). See \l{Cross-compiling Qt} for details.
To configure Qt for Android, create a shadow build directory to keep the source
directory clean:
\badcode
mkdir -p ~/dev/build-qt-android
cd ~/dev/build-qt-android
\endcode
Qt for Android supports the following device architectures (ABIs): \AndroidAbis
And then run the configure script:
\badcode \NdkFullVer
./configure -prefix <install_path> -qt-host-path <qt_host_path> \
-android-abis <abi> -android-sdk ~/Android/Sdk -android-ndk ~/Android/Sdk/ndk/\1
\endcode
\include src/platforms/android/android.qdoc Android SDK Paths
\include use-ninja-note.qdocinc ninja-note
\section1 Advanced Configure Arguments
Qt for Android contains Java code which is compiled into \e {*.jar} files
with the \e javac compiler. To set the \e javac version for source and target,
use \e -android-javac-source and \e -android-javac-target respectively:
\badcode
-android-javac-source 8 -android-javac-target 8
\endcode
To build Qt as a developer build instead of a prefix build, use the following
instead of the \c -prefix argument:
\badcode
-developer-build
\endcode
\note When using this configure argument, it's not required to install your
Qt build, Qt for Android can be used directly from within the build directory.
\l{Qt Configure Options} contains more information about the configure options.
\section1 Building
To build Qt, run the following command:
\badcode
cmake --build . --parallel
\endcode
\section1 Installing
For prefix builds, to install Qt, run the following command:
\badcode
cmake --install .
\endcode
On Unix, if you haven't provided the \c{-prefix <install_path>} configure option,
the installation is placed under \c{/usr/local/Qt-<version>}, in that case, you
would need to use \c sudo with the install command.
*/
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