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Update README for other Android architectures

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Update the cmake README file with explanations on how to target the
other available Android architectures.

Change-Id: Id7653abc4a1a6fbb96797014ce2ca2e6bb49943d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
This commit is contained in:
Leander Beernaert 2019-06-27 10:51:42 +02:00
parent f8c52530f7
commit 20bf867a72
1 changed files with 10 additions and 1 deletions
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cmake/README.md
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@ -137,7 +137,11 @@ Vcpkg for Android can be set up using the following steps:
* ```git clone -b qt https://github.com/tronical/vcpkg```
* Run ```bootstrap-vcpkg.bat``` or ```bootstrap-vcpkg.sh```
* Set the ``VCPKG_DEFAULT_TRIPLET`` environment variable to ``arm-android``
* Set the ``VCPKG_DEFAULT_TRIPLET`` environment variable to on of the following values:
* ``arm-android`` (armeabi-v7a)
* ``arm64-android`` (arm64v8)
* ``x86-android`` (x86)
* ``x64-android`` (x86_64)
* Set the ``VCPKG_ROOT`` environment variable to the path where you cloned vcpkg
* Set the ``ANDROID_NDK_HOME`` environment variable to the path where you have installed the Android NDK.
* Set the ``ANDROID_SDK_HOME`` environment variable to the path where you have installed the Android SDK.
@ -145,6 +149,11 @@ Vcpkg for Android can be set up using the following steps:
When running cmake in qtbase, pass ``-DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake -DQT_HOST_PATH=/path/to/your/host/build -DANDROID_NATIVE_API_LEVEL=21 -DANDROID_SDK_ROOT=$ANDROID_SDK_HOME -DANDROID_STL=c++_shared -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH``
If you don't supply the configuration argument ``-DANDROID_ABI=...``, it will default to ``armeabi-v7a``. To target other architectures, use on of the following values:
* arm64: ``-DANDROID_ABI=arm64-v8``
* x86: ``-DANDROID_ABI=x86``
* x86_64: ``-DANDROID_ABI=x86_64``
# Debugging CMake files
CMake allows specifying the ``--trace`` and ``--trace-expand`` options, which work like ``qmake -d -d``: As the cmake code is evaluated, the values of parameters and variables is shown. This can be a lot of output, so you may want to redirect it to a file.