Android 使用错误的编译器在 Windows cmake 上交叉编译命令行？

Question

我不知道为什么这给我带来了这么多麻烦。我正在尝试从在 linux 上编译这个 .so 库转向在 Windows 机器上编译它。出于某种原因，每当我运行 cmake .. cmake 总是关闭并使用 MSVC 而不是我告诉它在我的 cmake 文件中使用的编译器。也许我已经盯着它太久了，但我不明白我有什么问题。我什至尝试在 Android sdk 中使用 cmake，同样的问题。我错过了什么？

我的 cmake 文件：

cmake_minimum_required(VERSION 3.10.2)
project(TEST)


set(CMAKE_TOOLCHAIN_FILE "C:/Users/myusername/AppData/Local/Android/sdk/ndk-bundle/build/cmake/android.toolchain.cmake")
set(ANDROID_ABI arm64-v8a)

set(TOOLCHAIN "C:/Users/myusername/AppData/Local/Android/sdk/ndk-bundle/toolchains/llvm/prebuilt/windows-x86_64")


set(CC ${TOOLCHAIN}/bin/aarch64-linux-android28-clang)
set(CMAKE_CXX_COMPILER ${TOOLCHAIN}/bin/aarch64-linux-android28-clang++)

set(CMAKE_C_COMPILER ${TOOLCHAIN}/bin/aarch64-linux-android28-clang)
set(CMAKE_CXX_COMPILER ${TOOLCHAIN}/bin/aarch64-linux-android28-clang++)

include_directories(${CMAKE_SOURCE_DIR}/headers )


add_library( # Sets the name of the library.
             native-lib

             # Sets the library as a shared library.
             SHARED

             # Provides a relative path to your source file(s).
             #main.cpp
             Image_Reader.cpp
             CV_Main.cpp
             Native_Camera.cpp
             unityInterface.cpp
        )


#tensorflow lite
add_library(lib_tflite SHARED IMPORTED)
set_target_properties(lib_tflite
        PROPERTIES IMPORTED_LOCATION
        ${CMAKE_SOURCE_DIR}/arm64-v8a/libtensorflowlite.so)

#OpenCV
add_library(lib_opencv SHARED IMPORTED)
set_target_properties(lib_opencv
        PROPERTIES IMPORTED_LOCATION
        ${CMAKE_SOURCE_DIR}/arm64-v8a/libopencv_java4.so)






find_library( log-lib log C:/Users/myusername/AppData/Local/Android/sdk/ndk-bundle/platforms/android-28/arch-arm/usr/lib NO_DEFUALT_PATH)
find_library( camera-lib camera2ndk C:/Users/myusername/AppData/Local/Android/sdk/ndk-bundle/platforms/android-28/arch-arm/usr/lib NO_DEFUALT_PATH)
find_library( media-lib mediandk C:/Users/myusername/AppData/Local/Android/sdk/ndk-bundle/platforms/android-28/arch-arm/usr/lib NO_DEFUALT_PATH)
find_library( android-lib android C:/Users/myusername/AppData/Local/Android/sdk/ndk-bundle/platforms/android-28/arch-arm/usr/lib NO_DEFUALT_PATH)

target_link_libraries(native-lib ${log-lib} ${camera-lib} ${media-lib} ${android-lib} lib_tflite lib_opencv )

我的输出：

-- Building for: Visual Studio 15 2017
-- Selecting Windows SDK version 10.0.17763.0 to target Windows 6.1.7601.
-- The C compiler identification is MSVC 19.16.27035.0
-- The CXX compiler identification is MSVC 19.16.27035.0
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/
2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x86/cl.exe
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/
2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x86/cl.exe -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studi
o/2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x86/cl.exe
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studi
o/2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x86/cl.exe -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done

Answer 1

“项目”调用建立了您将用于编译代码的工具链。

cmake_minimum_required(VERSION 3.10.2)

# Must establish toolchain code before first project call!
set(CMAKE_TOOLCHAIN_FILE "C:/Users/myusername/AppData/Local/Android/sdk/ndk-bundle/build/cmake/android.toolchain.cmake")
set(ANDROID_ABI arm64-v8a)
set(TOOLCHAIN "C:/Users/myusername/AppData/Local/Android/sdk/ndk-bundle/toolchains/llvm/prebuilt/windows-x86_64")
set(CC ${TOOLCHAIN}/bin/aarch64-linux-android28-clang)
set(CMAKE_CXX_COMPILER ${TOOLCHAIN}/bin/aarch64-linux-android28-clang++)
set(CMAKE_C_COMPILER ${TOOLCHAIN}/bin/aarch64-linux-android28-clang)
set(CMAKE_CXX_COMPILER ${TOOLCHAIN}/bin/aarch64-linux-android28-clang++)

project(TEST)