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CMake/Modules/Platform/Android-Initialize.cmake

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Simplify CMake per-source license notices Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
2016-09-27 22:01:08 +03:00
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
Android: Add placeholders for platform-specific initialization Add infrastructure modules to be loaded when initializing builds targeting Android platforms.
2016-06-02 17:23:20 +03:00
# When CMAKE_SYSTEM_NAME is "Android", CMakeSystemSpecificInitialize loads this
# module.
Android: Suppress new functionality with Nsight Tegra in VS IDE builds Support for NVIDIA Nsight Tegra Visual Studio Edition was previously implemented in the CMake VS IDE generators. Avoid interfering with that functionality for now. Later we may try to integrate this.
2016-06-02 17:24:44 +03:00
# Support for NVIDIA Nsight Tegra Visual Studio Edition was previously
# implemented in the CMake VS IDE generators. Avoid interfering with
# that functionality for now. Later we may try to integrate this.
if(CMAKE_VS_PLATFORM_NAME STREQUAL "Tegra-Android")
return()
endif()
Android: Set CMAKE_SYSROOT automatically Compute CMAKE_SYSROOT automatically for the current API and architecture selection. This causes the --sysroot option to be passed to GNU and Clang compilers.
2016-06-02 21:46:49 +03:00
Android: Avoid interfering with common pre-existing toolchain files Commonly used Android toolchain files that pre-date CMake upstream support may need to be updated to work with our new functionality. They typically set CMAKE_SYSTEM_VERSION to 1, so detect that and skip our upstream Android settings. When such toolchain files are updated to account for our upstream support, they can then set CMAKE_SYSTEM_VERSION to a valid Android API and get new behavior.
2016-06-06 20:56:21 +03:00
# Commonly used Android toolchain files that pre-date CMake upstream support
# set CMAKE_SYSTEM_VERSION to 1. Avoid interfering with them.
if(CMAKE_SYSTEM_VERSION EQUAL 1)
return()
endif()
Android: Set CMAKE_SYSROOT automatically Compute CMAKE_SYSROOT automatically for the current API and architecture selection. This causes the --sysroot option to be passed to GNU and Clang compilers.
2016-06-02 21:46:49 +03:00
if(NOT CMAKE_SYSROOT)
if(CMAKE_ANDROID_NDK)
set(CMAKE_SYSROOT "${CMAKE_ANDROID_NDK}/platforms/android-${CMAKE_SYSTEM_VERSION}/arch-${CMAKE_ANDROID_ARCH}")
Android: Detect and save a standalone toolchain without the NDK
2016-06-03 22:06:58 +03:00
elseif(CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
set(CMAKE_SYSROOT "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/sysroot")
Android: Set CMAKE_SYSROOT automatically Compute CMAKE_SYSROOT automatically for the current API and architecture selection. This causes the --sysroot option to be passed to GNU and Clang compilers.
2016-06-02 21:46:49 +03:00
endif()
endif()
if(CMAKE_SYSROOT)
if(NOT IS_DIRECTORY "${CMAKE_SYSROOT}")
message(FATAL_ERROR
"Android: The system root directory needed for the selected Android version and architecture does not exist:\n"
" ${CMAKE_SYSROOT}\n"
)
endif()
else()
message(FATAL_ERROR
"Android: No CMAKE_SYSROOT was selected."
)
endif()
Android: Add a CMAKE_BUILD_TYPE default Android NDK builds are always `debug` or `release`. We may populate flags for these configurations that are needed to produce compatible binaries. Ensure they are used by default.
2016-06-08 20:48:19 +03:00
set(CMAKE_BUILD_TYPE_INIT Debug)