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This patch adds needed linker flags for FFmpeg Android compilation to get FFmpeg binary to be compliant for 16KB page size. 16KB page size is compliant with 4KB page size. This patch updates Android OpenSSL to be version 3.0.7, which is build with two NDK's: NDK27c and NDK29-beta2. Both with 16KB page size support. They are build with https://github.com/KDAB/android_openssl/pull/69 just changing OpenSSL version from 3.1.1 to 3.0.7 and NDK version from 25.2.9519653 to 27.2.12479018 (27c) and another build with 29.0.13599879 (beta2). The both build artefacts are added to CI-files to be usable. As the 16KB page size is applicable only to 64-bit ABI's this patch adds the variable to 90-install-ffmpeg.sh files for android-x86_64 and android-arm64. Change is picked to all branches using Android 15 or newer as Android 15 introduced the 16KB page size support. Fixes: QTBUG-139762 Pick-to: 6.10 6.9 6.8 6.5 Change-Id: I50bab81b97dad3e9d8c1e834c1928949d1e19687 Reviewed-by: Tero Heikkinen <tero.heikkinen@qt.io>
HOW TO BUILD Qt 6
Synopsis
System requirements
- C++ compiler supporting the C++17 standard
- CMake
- Ninja
- Python 3
For more details, see also https://doc.qt.io/qt-6/build-sources.html
Linux, Mac:
cd <path>/<source_package>
./configure -prefix $PWD/qtbase
cmake --build .
Windows:
- Open a command prompt.
- Ensure that the following tools can be found in the path:
- Supported compiler (Visual Studio 2022 or later, or MinGW-builds gcc 13.1 or later)
- Python 3 ([https://www.python.org/downloads/windows/] or from Microsoft Store)
cd <path>\<source_package>
configure -prefix %CD%\qtbase
cmake --build .
More details follow.
Build!
Qt is built with CMake, and a typical
configure && cmake --build . build process is used.
If Ninja is installed, it is automatically chosen as CMake generator.
Some relevant configure options (see configure -help):
-releaseCompile and link Qt with debugging turned off.-debugCompile and link Qt with debugging turned on.
Example for a release build:
./configure -prefix $PWD/qtbase
cmake --build .
Example for a developer build: (enables more autotests, builds debug version of libraries, ...)
./configure -developer-build
cmake --build .
See output of ./configure -help for documentation on various options to
configure.
The above examples will build whatever Qt modules have been enabled by default in the build system.
It is possible to build selected repositories with their dependencies by doing
a ninja <repo-name>/all. For example, to build only qtdeclarative,
and the modules it depends on:
./configure
ninja qtdeclarative/all
This can save a lot of time if you are only interested in a subset of Qt.
Hints
The submodule repository qtrepotools contains useful scripts for
developers and release engineers. Consider adding qtrepotools/bin
to your PATH environment variable to access them.
Building Qt from git
See http://wiki.qt.io/Building_Qt_6_from_Git and README.git for more information. See http://wiki.qt.io/Qt_6 for the reference platforms.
Documentation
After configuring and compiling Qt, building the documentation is possible by running
cmake --build . --target docs
After having built the documentation, you need to install it with the following command:
cmake --build . --target install_docs
The documentation is installed in the path specified with the
configure argument -docdir.
Information about Qt's documentation is located in qtbase/doc/README
Note: Building the documentation is only tested on desktop platforms.