97bca2f9fab58fcf5bbcb29e1e7e86e37b5cc1e0 - third_party/cmake

commit	97bca2f9fab58fcf5bbcb29e1e7e86e37b5cc1e0	[log] [tgz]
author	Brad King <brad.king@kitware.com>	Fri Jul 26 12:48:35 2019 -0400
committer	Brad King <brad.king@kitware.com>	Fri Jul 26 14:17:07 2019 -0400
tree	048fee25cd8797b3527994c504c5b8ce50e2ede2
parent	19f36c5fb2497703e4f071b3a9424a8d121ccef9 [diff]

Android: Use unified toolchain in NDK r19+

The NDK build system now uses only a single toolchain in

    <ndk>/toolchains/llvm/prebuilt/<host>

Its compilers are always `bin/{clang,clang++}` and its binutils are
always `bin/<triple>-*`.  It is a standalone toolchain:

* The Anrdoid API level is specified at the end of `--target=`.
* The standard library may be specified via `-stdlib=`.
* No need to pass system includes or libraries explicitly.
* No need to pass `--sysroot` or `-gcc-toolchain`.

Teach CMake to recognize NDK versions that have a unified
toolchain with its own sysroot and use the above approach.

Fixes: #18739

Help/manual/cmake-toolchains.7.rst[diff]
Help/variable/CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION.rst[diff]
Modules/Platform/Android-Clang.cmake[diff]
Modules/Platform/Android-Common.cmake[diff]
Modules/Platform/Android-Determine.cmake[diff]
Modules/Platform/Android-Initialize.cmake[diff]
Modules/Platform/Android/Determine-Compiler-NDK.cmake[diff]
Modules/Platform/Android/abi-common.cmake[diff]
Tests/RunCMake/Android/ndk-arm64-v8a-stdout.txt[diff]
Tests/RunCMake/Android/ndk-armeabi-arm-stdout.txt[diff]
Tests/RunCMake/Android/ndk-armeabi-v7a-neon-stdout.txt[diff]
Tests/RunCMake/Android/ndk-armeabi-v7a-stdout.txt[diff]
Tests/RunCMake/Android/ndk-badver-stderr.txt[diff]
Tests/RunCMake/Android/ndk-badvernum-stderr.txt[diff]
Tests/RunCMake/Android/ndk-mips-stdout.txt[diff]
Tests/RunCMake/Android/ndk-mips64-stdout.txt[diff]
Tests/RunCMake/Android/ndk-x86-stdout.txt[diff]
Tests/RunCMake/Android/ndk-x86_64-stdout.txt[diff]

18 files changed