I'm trying to follow best practices where I can, but the trouble is
I'm not aware of any. So I want to post my android.toolchain.cmake
file here, with the hope that I can get some pointers.
The main thing I want to understand is when it is appropriate to
require cache variables be set via command line argument (-D) or via
the toolchain file itself. Here is what is in my toolchain right now:
set(CMAKE_SYSTEM_NAME Android)
set(CMAKE_SYSTEM_VERSION 15) # API level
set(CMAKE_ANDROID_ARCH_ABI armeabi-v7a)
set(CMAKE_ANDROID_STL_TYPE c++_static)
set(CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION clang)
string(REGEX REPLACE "\\\\" "/" ndk_path "$ENV{ANDROID_NDK}")
set(CMAKE_ANDROID_NDK ${ndk_path})
unset(ndk_path)
My idea here is to provide a different toolchain file per specific NDK
configuration. For example, I need to build my native libraries for
both x86 and ARM platforms, so I would use 2 CMAKE_BINARY_DIR, each
configured using a different toolchain:
x86 would use "android.toolchain.x86.cmake"
ARM would use "android.toolchain.arm.cmake"
Something like that. Is this best practice? What other advice would you offer?
Thanks in advance.
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