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CMake可以通过message命令进行打印内容，但是在AndroidStudio中使用不同版本的CMake会导致message输出形式不同。

CMake可以通过message命令进行打印内容，但是在AndroidStudio中使用不同版本的CMake会导致message输出形式不同。

我借鉴这位博主的经验后借鉴链接将项目root目录下的build.gradle中的CMake版本改成了version "3.6.0"后就可以看到编译输出了。

具体gradle文件如下:

apply plugin: 'com.android.application'

android {

compileSdkVersion 30

buildToolsVersion "30.0.0"

defaultConfig {

applicationId "com.epimenides.cmakedemo"

minSdkVersion 25

targetSdkVersion 30

versionCode 1

versionName "1.0"

testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

externalNativeBuild {

cmake {

cppFlags ""

}

}

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

}

}

externalNativeBuild {

cmake {

path "src/main/cpp/CMakeLists.txt"

version "3.6.0"

}

}

}

dependencies {

implementation fileTree(dir: 'libs', include: ['*.jar'])

implementation 'androidx.appcompat:appcompat:1.1.0'

implementation 'androidx.constraintlayout:constraintlayout:1.1.3'

testImplementation 'junit:junit:4.12'

androidTestImplementation 'androidx.test.ext:junit:1.1.1'

androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

}

最后得到的Sync输出提示为:

debug|x86 :-- Check for working C compiler: D:/Sdk/ndk/20.0.5594570/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe

debug|x86 :-- Check for working C compiler: D:/Sdk/ndk/20.0.5594570/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe -- works

debug|x86 :-- Detecting C compiler ABI info

debug|x86 :-- Detecting C compiler ABI info - done

debug|x86 :-- Detecting C compile features

debug|x86 :-- Detecting C compile features - done

debug|x86 :-- Check for working CXX compiler: D:/Sdk/ndk/20.0.5594570/toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe

debug|x86 :-- Check for working CXX compiler: D:/Sdk/ndk/20.0.5594570/toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -- works

debug|x86 :-- Detecting CXX compiler ABI info

debug|x86 :-- Detecting CXX compiler ABI info - done

debug|x86 :-- Detecting CXX compile features

debug|x86 :-- Detecting CXX compile features - done

debug|x86 :var = 123

debug|x86 :-- Configuring done

debug|x86 :-- Generating done

debug|x86 :CMake Warning:

debug|x86 : Manually-specified variables were not used by the project:

debug|x86 : CMAKE_ANDROID_NDK

debug|x86 :-- Build files have been written to: F:/AndroidStudioProjects/CMakeDemo/app/.cxx/cmake/debug/x86

CONFIGURE SUCCESSFUL in 3s

可以得到结论: 编译文件的最终会被写入到

$your-proj/$your-module/.cxx/cmake/debug/x86

目录下的build_output.txt文件当中