cmake的定义是什么 ？-----⾼级编译配置⼯具cmake就是将多个cpp、hpp文件组合构建为一个大工程的语言。他能够输出各种各样的makefile或者project文件，所有操作都是通过编译CMakeLists.txt来完成。

在使用Android Stodio编译JNI项目时出现Cmake错误，报错如下：

Execution failed for task ':app:configureCMakeDebug[arm64-v8a]'.
> [CXX1429] error when building with cmake using C:\Users\Dell\AndroidStudioProjects\MyApplication2\app\src\main\cpp\CMakeLists.txt: -- Android: Targeting API '31' with architecture 'arm64', ABI 'arm64-v8a', and processor 'aarch64'
  -- Android: Selected unified Clang toolchain
  -- The C compiler identification is unknown
  -- The CXX compiler identification is Clang 12.0.8
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - failed
  -- Check for working C compiler: D:/Sdk/ndk/23.1.7779620/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe
  -- Check for working C compiler: D:/Sdk/ndk/23.1.7779620/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe - broken
  -- Configuring incomplete, errors occurred!

在cpp\CMakeLists.txt文件最上方添加后解决问题

会在编译时跳过编译器检查，就不会再出现异常了。

set(CMAKE_C_COMPILER_WORKS TRUE)
set(CMAKE_CXX_COMPILER_WORKS TRUE)